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Sample records for italian honeys marche

  1. Characterization of Italian honeys (Marche Region on the basis of their mineral content and some typical quality parameters

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    Cucina Domenico

    2007-06-01

    Full Text Available Abstract Background The characterization of three types of Marche (Italy honeys (Acacia, Multifloral, Honeydew was carried out on the basis of the their quality parameters (pH, sugar content, humidity and mineral content (Na, K, Ca, Mg, Cu, Fe, and Mn. Pattern recognition methods such as principal components analysis (PCA and linear discriminant analysis (LDA were performed in order to classify honey samples whose botanical origins were different, and identify the most discriminant parameters. Lastly, using ANOVA and correlations for all parameters, significant differences between diverse types of honey were examined. Results Most of the samples' water content showed good maturity (98% whilst pH values were in the range 3.50 – 4.21 confirming the good quality of the honeys analysed. Potassium was quantitatively the most relevant mineral (mean = 643 ppm, accounting for 79% of the total mineral content. The Ca, Na and Mg contents account for 14, 3 and 3% of the total mineral content respectively, while other minerals (Cu, Mn, Fe were present at very low levels. PCA explained 75% or more of the variance with the first two PC variables. The variables with higher discrimination power according to the multivariate statistical procedure were Mg and pH. On the other hand, all samples of acacia and honeydew, and more than 90% of samples of multifloral type have been correctly classified using the LDA. ANOVA shows significant differences between diverse floral origins for all variables except sugar, moisture and Fe. Conclusion In general, the analytical results obtained for the Marche honeys indicate the products' high quality. The determination of physicochemical parameters and mineral content in combination with modern statistical techniques can be a useful tool for honey classification.

  2. Physicochemical properties of honey from Marche, Central Italy: classification of unifloral and multifloral honeys by multivariate analysis.

    Science.gov (United States)

    Truzzi, Cristina; Illuminati, Silvia; Annibaldia, Anna; Finale, Carolina; Rossetti, Monica; Scarponi, Giuseppe

    2014-11-01

    The purpose of this study was the physicochemical characterization and classification of Italian honey from Marche Region with a chemometric approach. A total of 135 honeys of different botanical origins [acacia (Robinia pseudoacacia L.), chestnut (Castanea sativa), coriander (Coriandrum sativum L.), lime (Tilia spp.), sunflower (Helianthus annuus L.), Metcalfa honeydew and multifloral honey] were considered. The average results of electrical conductivity (0.14-1.45 mS cm(-1)), pH (3.89-5.42), free acidity (10.9-39.0 meq(NaOH) kg(-1)), lactones (2.4-4.5 meq(NaOH) kg(-1)), total acidity (14.5-40.9 meq(NaOH) kg(-1)), proline (229-665 mg kg(-1)) and 5-(hydroxy-methyl)-2-furaldehyde (0.6-3.9 mg kg(-1)) content show wide variability among the analysed honey types, with statistically significant differences between the different honey types. Pattern recognition methods such as principal component analysis and discriminant analysis were performed in order to find a relationship between variables and types of honey and to classify honey on the basis of its physicochemical properties. The variables of electrical conductivity, acidity (free, lactones), pH and proline content exhibited higher discriminant power and provided enough information for the classification and distinction of unifloral honey types, but not for the classification of multifloral honey (100% and 85% of samples correctly classified, respectively).

  3. Attitudes towards honey among Italian consumers: A choice experiment approach.

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    Cosmina, Marta; Gallenti, Gianluigi; Marangon, Francesco; Troiano, Stefania

    2016-04-01

    Honey is becoming increasingly popular with consumers for its nutritional benefits as well as many other functions. The objective of this article is to determine which factors influence consumers' purchase intentions and to assess the importance of certain honey characteristics to enable identification of the constituents of an ideal honey profile. This information will lead to satisfaction of consumers' preferences and formulation of marketing strategies that support honey makers. We applied a choice experiment to the Italian honey market to define the preferences and the willingness to pay for key characteristics of the product. A face-to-face questionnaire survey was conducted in 2014 (January-July) among Italian consumers; it was completed by 427 respondents. A latent class model was estimated and four classes were identified, with different preferences, illustrating that respondents seem to be heterogeneous honey consumers. Results suggest the "organic" attribute was more important than others factors, such as the place where the honey was produced (landscape), but less important than the country of origin; local Italian honey was preferred to foreign honey. Respondents showed a higher willingness to pay (WTP) for honey from their country of origin versus the production method used. Our results suggest that while organic beekeeping might be an important strategy for diversification, if suitable communication is not taken into consideration, the added value of the production method might not be perceived by consumers. Copyright © 2015 Elsevier Ltd. All rights reserved.

  4. Reprint of "Attitudes towards honey among Italian consumers: A choice experiment approach".

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    Cosmina, Marta; Gallenti, Gianluigi; Marangon, Francesco; Troiano, Stefania

    2016-11-01

    Honey is becoming increasingly popular with consumers for its nutritional benefits as well as many other functions. The objective of this article is to determine which factors influence consumers' purchase intentions and to assess the importance of certain honey characteristics to enable identification of the constituents of an ideal honey profile. This information will lead to satisfaction of consumers' preferences and formulation of marketing strategies that support honey makers. We applied a choice experiment to the Italian honey market to define the preferences and the willingness to pay for key characteristics of the product. A face-to-face questionnaire survey was conducted in 2014 (January-July) among Italian consumers; it was completed by 427 respondents. A latent class model was estimated and four classes were identified, with different preferences, illustrating that respondents seem to be heterogeneous honey consumers. Results suggest the "organic" attribute was more important than others factors, such as the place where the honey was produced (landscape), but less important than the country of origin; local Italian honey was preferred to foreign honey. Respondents showed a higher willingness to pay (WTP) for honey from their country of origin versus the production method used. Our results suggest that while organic beekeeping might be an important strategy for diversification, if suitable communication is not taken into consideration, the added value of the production method might not be perceived by consumers. Copyright © 2015 Elsevier Ltd. All rights reserved.

  5. A review of the Italian fast reactor programme, March 1979

    Energy Technology Data Exchange (ETDEWEB)

    Pierantoni, F

    1979-07-01

    Year 1978 in Italy was marked by a standstill in the nuclear energy field. The decisions previously made for the installation of eight 1000 MWe LWR-type reactors could not be acted upon because of the opposition of local authorities and lack of Government power. The construction site at Montalto di Castro (two BWR reactors) was ope ned with difficulty, whereas the decision to install a plant in Mo use equipped with two PWR reactor was postponed. The new presidents of ENEL and CNEN were appointed in January this year and the appointments of the new Boards of Directors are underway. With regard to CNEN, many political bodies are in agreement on an institutional change which would widen field of activity to include new energy sources, solar energy in particular. This will open a big problem: if CNEN will be no more a 'nuclear body, it could be necessary to transfer all the activities connected to the Regulatory Commission to another separate body to be instituted. In this context, the fast reactor programme has continued to develop under the directives of CIPE, and has concentrated its effort on the following three objectives: the PEC-Reactor, the Creys-Malville Power Plant and research and development, and industrial promotion. These objectives are being pursued with the participation of CNEN, ENEL and Italian industry. CNEN has the role of committing and operating the PEC reactor; it is also charged to perform part of the R and D Italian-French programme and to promote industrial development. ENEL participates in the NERSA Company, owner of the Creys-Malville Plant. Italian industry, with its activities of architect-engineering, designing and manufacturing will participate in the construction of the PEC and of the Italian part (33%) of the Creys-Malville Plant. During the last months of 1978 a consortium (COREY) was set up by CNEN and NIRA which has the purpose of integrating and ensuring the smooth running of Italian efforts in the field of long-term research and

  6. A review of the Italian fast reactor programme, March 1979

    International Nuclear Information System (INIS)

    Pierantoni, F.

    1979-01-01

    Year 1978 in Italy was marked by a standstill in the nuclear energy field. The decisions previously made for the installation of eight 1000 MWe LWR-type reactors could not be acted upon because of the opposition of local authorities and lack of Government power. The construction site at Montalto di Castro (two BWR reactors) was ope ned with difficulty, whereas the decision to install a plant in Mo use equipped with two PWR reactor was postponed. The new presidents of ENEL and CNEN were appointed in January this year and the appointments of the new Boards of Directors are underway. With regard to CNEN, many political bodies are in agreement on an institutional change which would widen field of activity to include new energy sources, solar energy in particular. This will open a big problem: if CNEN will be no more a 'nuclear body, it could be necessary to transfer all the activities connected to the Regulatory Commission to another separate body to be instituted. In this context, the fast reactor programme has continued to develop under the directives of CIPE, and has concentrated its effort on the following three objectives: the PEC-Reactor, the Creys-Malville Power Plant and research and development, and industrial promotion. These objectives are being pursued with the participation of CNEN, ENEL and Italian industry. CNEN has the role of committing and operating the PEC reactor; it is also charged to perform part of the R and D Italian-French programme and to promote industrial development. ENEL participates in the NERSA Company, owner of the Creys-Malville Plant. Italian industry, with its activities of architect-engineering, designing and manufacturing will participate in the construction of the PEC and of the Italian part (33%) of the Creys-Malville Plant. During the last months of 1978 a consortium (COREY) was set up by CNEN and NIRA which has the purpose of integrating and ensuring the smooth running of Italian efforts in the field of long-term research and

  7. Africanized honey bees (Apis mellifera L. are more efficient at removing worker brood artificially infested with the parasitic mite Varroa jacobsoni Oudemans than are Italian bees or Italian/Africanized hybrids

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    Guerra Jr. José Carlos Vieira

    2000-01-01

    Full Text Available Africanized honey bees are more tolerant of infestations with the mite Varroa jacobsoni than are honey bees of European origin. The capacity of these bees to detect and react to brood infested with this mite could be one of the factors determining this tolerance. We tested colonies of Africanized bees headed by queens from swarms collected in Ribeirão Preto, São Paulo State. The Italian colonies had queens imported directly from the USA, or from the Brazilian Island of Fernando de Noronha, where varroa-infested Italian colonies have been maintained, untreated, since 1984. Recently sealed worker brood cells were artificially infested by opening the cell capping, inserting live adult female mites and resealing the cells. Control cells were treated in the same way, but without introducing mites. The ability of the Africanized honey bees to recognize and remove this artificially infested brood was compared with that of first generation Italian/Africanized hybrid bees, and with the two groups of "pure" Italian bees, in three separate experiments. Africanized colonies removed a mean of 51% of the infested brood, while Italian/Africanized hybrid colonies removed 25%. Africanized colonies also removed a significantly greater proportion of infested brood than did Italian colonies, headed by queens from the USA (59 vs. 31%, respectively. Similarly, when Africanized colonies were compared with colonies of Italian bees from Fernando de Noronha, the former were found to be significantly more efficient at removing infested brood (61 vs. 35%, respectively, even though the population of Italian bees on this island has been exposed to and survived varroa infestations (without treatment for more than 12 years. Only the Africanized honey bees removed a significant proportion of varroa-infested brood, when the data was corrected for brood removal from control cells.

  8. Honey

    Science.gov (United States)

    ... from plants that have not been treated with pesticides. Honey is used for cough, diabetes, high levels ... Medications changed by the liver (Cytochrome P450 3A4 (CYP3A4) substrates)Some medications are changed and broken down ...

  9. [Protection of working mothers: operational guide document. The Marche Regional Section of the Italian Society of Occupational Health and Industrial Hygiene (SIMLII) ].

    Science.gov (United States)

    Alessandroni, Morena; Balzani, Barbara; Cancellieri, Francesca; Colao, Annamaria; Comai, M; Elezi, Lindita; Mengucci, Rosella; Montesi, Simona; Olivi, Cinzia; Perticaroli, Patrizia; Pettinari, A; Ruschioni, Angela

    2013-01-01

    Protection of working mothers: operational guide document. The aim of this operational guide document is to protect the health of working mothers and their babies during pregnancy, puerperium and breastfeeding. The project was developed by a technical working group which included professionals in the pertinent fields from the Workplace Prevention and Safety Services of the local Vasta-2 Area of the Marche Regional Health Service:physicians, health assistants, and nurses. It is considered to be a useful tool for risk assessment at the workplace aimed at professionals who are involved, with various duties and responsibilities, in the health care of the working mother. This paper consists of two functionally related sections, "Table of risks" and "Technical specifications". In the "Table of Risks" section, the occupational hazards for women during pregnancy or postpartum were analyzed with the highest possible degree of care. To this end the technical group provided, for each occupational hazard, its own operational suggestions, in relation to legislation, current scientific knowledge and Guidelines of other Italian Regions. The Marche Regional Section of the Italian Society of Occupational Health and Industrial Hygiene (SIMLII) participated in the final draft of the entire document. The second section, "Technical Specifications", illustrates the main tasks and any risks involved in the 34 manufacturing sectors most prevalent in this area. This operational guide document is intended to be the beginning of a common strategy in public health to achieve a wider field of action in promotion and information aimed at protecting the reproductive health of working mothers.

  10. The role of Italian FDI in Southeast Europe's international integration. A focus on investors from the Marche region

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    Eleonora Cutrini

    2012-12-01

    Full Text Available Southeast European countries have experienced significant economic integration into the world economy since 2000, through international capital flows and especially foreign direct investment (FDI. The work sheds light on recent trends in Italy-Western Balkans economic integration through FDI and other non-equity modes (NEMs. The methodology applied is based on country-level analysis, enriched by a case study approach. Main trends, characteristics and motivation of investments in the area are investigated. Based on this evidence, we suggest that the phenomenon of Italian integration in the Western Balkans is broader than official statistics would indicate, since Italian firms often set up subsidiaries through various non-equity arrangements. The surge in FDI in the area is recent, therefore it is not surprising that the main determinants are cost reductions and new market opportunities. What is interesting in this context is that local entrepreneurs regard efficiency-seeking investments as profitable only if they are connected to market-seeking goals. We find evidence also of localized industrial development stimulated by the entry of Italian firms, which is activating subcontracting relationships with existing companies in the host region. Further and in depth studies are needed to investigate the phenomenon

  11. Reconnaissance of the hydrology, water quality, and sources of bacterial and nutrient contamination in the Ozark Plateaus aquifer system and Cave Springs Branch of Honey Creek, Delaware County, Oklahoma, March 1999-March 2000

    Science.gov (United States)

    Schlottmann, Jamie L.; Tanner, Ralph S.; Samadpour, Mansour

    2000-01-01

    state line were dominantly cow and horse with one ribotype from bird. Escherichia coli was detected in only one well sample. Bacterial ribotypes in water from that upgradient well indicated human and dog feces as sources for bacteria, and that on site wastewater treatment may not always be adequate in these highly permeable soils. Greater concentrations of nitrate in Cave Springs Branch and O'Brien Spring relative to the poultry-processing plant wastewater outfall may be due, in part, to conversion of ammonia from poultry processing plant wastewater. The poultry-processing plant wastewater outfall sample collected in March 2000 contained greater concentrations of ammonia and total organic nitrogen plus ammonia than the spring, stream, and well samples collected during August 1999. Cave Springs Branch and Honey Creek contributed approximately equal loads of nitrogen to Honey Creek below the confluence and the greatest loads of nitrogen were introduced to Cave Springs Branch by the poultry processing plant wastewater outfall and O'Brien Spring. Nitrate concentrations in upgradient well samples ranged from 0.38 to 4.60 milligrams per liter, indicating that there are sources of ground-water nitrogen other than Cave Springs Branch, such as animal waste, fertilizer, or human waste. Nitrogen compounds in water from wells downgradient of Cave Springs Branch may be from Cave Springs Branch, fertilizers, animal waste, or human waste.

  12. 28 March 2014 - Italian Minister of Education, University and Research S. Giannini welcomed by CERN Director-General R. Heuer and Director for Research and Scientific Computing S. Bertolucci in the ATLAS experimental cavern with Former Collaboration Spokesperson F. Gianotti. Signature of the guest book with Belgian State Secretary for the Scientific Policy P. Courard.

    CERN Multimedia

    Gadmer, Jean-Claude

    2014-01-01

    28 March 2014 - Italian Minister of Education, University and Research S. Giannini welcomed by CERN Director-General R. Heuer and Director for Research and Scientific Computing S. Bertolucci in the ATLAS experimental cavern with Former Collaboration Spokesperson F. Gianotti. Signature of the guest book with Belgian State Secretary for the Scientific Policy P. Courard.

  13. Ionic profile of honey as a potential indicator of botanical origin and global environmental pollution

    International Nuclear Information System (INIS)

    Fermo, Paola; Beretta, Giangiacomo; Maffei Facino, Roberto; Gelmini, Fabrizio; Piazzalunga, Andrea

    2013-01-01

    Aim of this study was to determine by Ion Chromatography ions (Na + , Ca ++ , Mg ++ , NH 4 + , Cl − , Br − , SO 4 2− , NO 3 − , PO 4 3− ) in honeys (honeydew and floral nectar honeys) from different Italian Regions and from countries of the Western Balkan area. The compositional data were processed by multivariate analysis (PCA and HCA). Arboreal honeydew honeys from the Western Balkans had higher concentrations (from two to three times) of some environmental pollutants (Br − , SO 4 2− and PO 4 3− contents), due to industrial and agricultural activities, than those from Italian regions. The cationic profiles were very similar in both groups. Multivariate analysis indicated a clear difference between nectar honeys and arboreal/honeydew honeys (recognition of the botanical origin). These findings point to the potential of ionic constituents of honey as indicators of environmental pollution, botanical origin and authenticity. -- Highlights: •Analysis by IC of honeys from two areas with different environmental pollution (Italy and Balkans). •Chemometric techniques such as PCA and HCA used. •In Balkans area higher Br − , SO 4 2− and PO 4 3− due to industrial and agricultural activities. •Discrimination of honey botanical origin and authenticity on the base of IC data. •Honey ionic profiles as indicators of environmental pollution and botanical origin. -- Capsule: Ionic profiles of honey could be potential indicators of environmental pollution (industrial and agricultural), botanical origin and authenticity

  14. Climate change effects on environment (marine, atmospheric and terrestrial) and human perception in an Italian Region (Marche) and the nearby northern Adriatic Sea.

    Science.gov (United States)

    Appiotti, F.; Krzelj, M.; Marincioni, F.; Russo, A.

    2012-04-01

    An integrated analysis of recent climate change, including atmosphere, sea and land, as well as some of the impacts on society, has been conducted on the Marche Region in central Italy and the northern portion of the Adriatic Sea. The Marche Region is one of the 20 administrative divisions of Italy, located at a latitude approximately 43° North, with a total surface area of 9,366 km2 and 1,565,000 residents. The northern Adriatic Sea is the northernmost area of the Mediterranean Sea, and it has peculiar relevance for several aspects (environment, tourism, fisheries, economy). The collected environmental data included meteorological stations (daily maximum and minimum air temperature, daily precipitation), oceanographic stations (sea temperature, salinity, dissolved oxygen, nutrient salts concentration, chlorophyll) and river flows, over the last 50 years. The collected social data include 800 questionnaires and interviews carried out on selected samples of residents, decision-makers and emergency managers. These questionnaires and interviews aimed at highlighting the perception of climate change risks. The trend analysis of air temperature and precipitation data detailed an overall temperature increase in all seasons and rainfall decreases in Winter, Spring and Summer with Autumn increases, influencing river flow changes. Marine data showed a relevant warming of the water column in the period after 1990 in comparison with the previous period, particularly in the cold season. Surface salinity increased in Spring and Summer and strongly decreased in Autumn and Winter (according with the precipitation and river flow changes). These last mentioned changes, combined with anthropogenic effects, also influenced the marine ecosystems, with changes of nutrient salts, chlorophyll and dissolved oxygen. Changes in nutrient discharge from rivers influenced the average marine chlorophyll concentration reduction and the consequent average reduction of warm season hypoxic

  15. Results of a honey monitoring program in Italy after the Chernobyl accident

    International Nuclear Information System (INIS)

    Omet, C.; Piermattei, S.; Ossola, P.; Tofani, S.; Fabretto, M.; Padovani, R.

    1988-01-01

    Honey bees (Apis Mellifera) as bioindicators of environmental pollution have been studied for a long time to analyse their ability to detect air and water pollution. Bees forage over a large area (around 7Km 2 ) and seem to act as biomagnifiers of the contamination of the environment. Honey bees and their products, mainly honey, were used in the U.S.A. during the seventies to monitor potential releases from nuclear waste disposal sites. Honey samples were examined to detect contaminated areas surrounding a nuclear facility at Cattaraugus Country (NY); the presence of radionuclides from fallout of nuclear weapon tests in honey samples was also investigated. As a consequence of the Chernobyl accident, the radioactive contamination spread all over the Italian soil allowed the analysis of the radioactivity transfer from the environment to honey

  16. Antibacterial components of honey

    NARCIS (Netherlands)

    Kwakman, Paulus H. S.; Zaat, Sebastian A. J.

    2012-01-01

    The antibacterial activity of honey has been known since the 19th century. Recently, the potent activity of honey against antibiotic-resistant bacteria has further increased the interest for application of honey, but incomplete knowledge of the antibacterial activity is a major obstacle for clinical

  17. How honey kills bacteria

    NARCIS (Netherlands)

    Kwakman, Paulus H. S.; te Velde, Anje A.; de Boer, Leonie; Speijer, Dave; Vandenbroucke-Grauls, Christina M. J. E.; Zaat, Sebastian A. J.

    2010-01-01

    With the rise in prevalence of antibiotic-resistant bacteria, honey is increasingly valued for its antibacterial activity. To characterize all bactericidal factors in a medical-grade honey, we used a novel approach of successive neutralization of individual honey bactericidal factors. All bacteria

  18. Toxic compounds in honey.

    Science.gov (United States)

    Islam, Md Nazmul; Khalil, Md Ibrahim; Islam, Md Asiful; Gan, Siew Hua

    2014-07-01

    There is a wealth of information about the nutritional and medicinal properties of honey. However, honey may contain compounds that may lead to toxicity. A compound not naturally present in honey, named 5-hydroxymethylfurfural (HMF), may be formed during the heating or preservation processes of honey. HMF has gained much interest, as it is commonly detected in honey samples, especially samples that have been stored for a long time. HMF is a compound that may be mutagenic, carcinogenic and cytotoxic. It has also been reported that honey can be contaminated with heavy metals such as lead, arsenic, mercury and cadmium. Honey produced from the nectar of Rhododendron ponticum contains alkaloids that can be poisonous to humans, while honey collected from Andromeda flowers contains grayanotoxins, which can cause paralysis of limbs in humans and eventually leads to death. In addition, Melicope ternata and Coriaria arborea from New Zealand produce toxic honey that can be fatal. There are reports that honey is not safe to be consumed when it is collected from Datura plants (from Mexico and Hungary), belladonna flowers and Hyoscamus niger plants (from Hungary), Serjania lethalis (from Brazil), Gelsemium sempervirens (from the American Southwest), Kalmia latifolia, Tripetalia paniculata and Ledum palustre. Although the symptoms of poisoning due to honey consumption may differ depending on the source of toxins, most common symptoms generally include dizziness, nausea, vomiting, convulsions, headache, palpitations or even death. It has been suggested that honey should not be considered a completely safe food. Copyright © 2013 John Wiley & Sons, Ltd.

  19. Lymphogranuloma venereum: the Italian experience

    NARCIS (Netherlands)

    Cusini, M.; Boneschi, V.; Arancio, L.; Ramoni, S.; Venegoni, L.; Gaiani, F.; de Vries, H.J.C.

    2009-01-01

    An epidemic of lymphogranuloma venereum (LGV) has been described in men who have sex with men (MSM) in the western world, particularly in western Europe. The first Italian case was reported by the authors in 2006, and up to March 2008 there have been 13 symptomatic cases, all in MSM. Ten cases had

  20. Selected Abstracts of the 20th National Congress of the Italian Society of Perinatal Medicine (Società Italiana di Medicina Perinatale, SIMP; Catania (Italy; March 22-24, 2018; Session “Perinatal infections”

    Directory of Open Access Journals (Sweden)

    --- Various Authors

    2018-03-01

    Full Text Available 20th National Congress of the Italian Society of Perinatal Medicine (Società Italiana di Medicina Perinatale, SIMP Catania (Italy • March 22nd-24th, 2018SIMP PRESIDENTIrene CetinCONGRESS PRESIDENTSNicola Chianchiano, Angela Motta SCIENTIFIC COMMITTEEMariarosaria Di Tommaso, Gianpaolo Donzelli, Luca Ramenghi----------Guest Editors: Irene Cetin, Nicola Chianchiano, Angela Motta ----------Session “Perinatal infections”ABS 1. ROLE OF ABNORMAL CTG FEATURES IN CLINICAL AND SUBCLINICAL CHORIO­AMNIONITIS • L. Galli, V. Whelehan, A. Archer, A. Dall’Asta, T. Frusca, E. ChandraharanABS 2. HISTOLOGICAL CHORIOAMNIONITIS AT TERM: WHAT CLINICAL VALUE? • A. Pintucci, S. Consonni, L.E. Gioia, P. Colombo, P. Di Lorenzo, I. Vaglio Tessitore, F. Moltrasio, G. Bovo, A. LocatelliABS 3. VALNOCTAMIDE RESCUES CYTO­MEGALO­VIRUS-INDUCED ABNORMAL BRAIN ON­TOGENY AND DEAFNESS • S. Ornaghi, J. Bai, W. Tan, J. Santos-Sacchi, D. Navaratnam, A.N. van den Pol, M.J. Paidas, P. VerganiABS 4. ZIKA TESTING IN PREGNANT AND PREG­NANCY PLANNING WOMEN • G. Liuzzi, C. Castilletti E. Nicastri, F. Vairo, A. Corpolongo E. Lalle, M. Iannetta, L. Bordi, L. Scorzolini, F. Carletti, S. Quartu, F. Colavita, M.R. Capobianchi, G. IppolitoABS 5. MEASLES IS AGAIN A PROBLEM • C.I. Palermo, C.M. Costanzo, R. Russo, M. Di Franco, G. ScaliaABS 6. OUTCOMES ASSOCIATED WITH FETAL PARVOVIRUS B19 INFECTION: A SYSTEMATIC REVIEW AND META-ANALYSIS • D. Buca, F. Bascietto, M. Liberati, D. Murgano, A. Iacovelli, M.E. Flacco, L. Manzoli, A. Familiari, G. Scambia, F. D’AntonioABS 7. HIV INFECTION AMONG MIGRANT PEOPLE: A SINGLE CENTER EXPERIENCE • A. Giudicepietro, L. Sarno, G.M. Maruotti, L.L. Mazzarelli, M.C. De Angelis, A. Sirico, F. Zullo, P. Martinelli, M. SansoneABS 8. FETAL PARVOVIRUS B19 INFECTION • V. Giardini, S. Lazzarin, A. Martinelli, S. Cozzolino, M. Verderio, P. VerganiABS 9. MASTITIS AND BREAST ABSCESSES IN BREASTFEEDING: MILK CULTURE, ANTIBIOTIC TREATMENT AND FOLLOW

  1. Honey Market in Romania

    Directory of Open Access Journals (Sweden)

    Nica Maria

    2017-01-01

    Full Text Available In Romania, beekeeping is an important traditional occupation. Honey and other bee products produced in our country are appreciated both in Europe and around the world. Honey is a complex food, one of the healthiest: it contains vitamins, organic acids, minerals and enzymes from bees, thanks to which honey is considered a superfood. The main objectives of the research are to analyze: the evolution of the number of bee families; the evolution of honey production and consumption in Romania; the value of exports and imports of honey from Romania. Estimates will also be made on honey production and consumption. The data used in the research will be taken from national and international databases.

  2. Selected Abstracts of the 20th National Congress of the Italian Society of Perinatal Medicine (Società Italiana di Medicina Perinatale, SIMP; Catania (Italy; March 22-24, 2018; Session “Perinatal Miscellanea”

    Directory of Open Access Journals (Sweden)

    --- Various Authors

    2018-03-01

    Full Text Available 20th National Congress of the Italian Society of Perinatal Medicine (Società Italiana di Medicina Perinatale, SIMP Catania (Italy • March 22nd-24th, 2018SIMP PRESIDENTIrene CetinCONGRESS PRESIDENTSNicola Chianchiano, Angela Motta SCIENTIFIC COMMITTEEMariarosaria Di Tommaso, Gianpaolo Donzelli, Luca Ramenghi----------Guest Editors: Irene Cetin, Nicola Chianchiano, Angela Motta ----------Session “Perinatal Miscellanea”ABS 1. RISK FACTORS FOR CEREBRAL INJURY OF SURVIVORS AFTER SPONTANEOUS SINGLE FETAL DEMISE IN MONOCHORIONIC TWINS • M. Pellegrino, A. Turri, G. Pavone, T. Izzo, M.M. Lanna, S. Faiola, M.A. RusticoABS 2. PRENATAL DIAGNOSIS OF CORPUS CAL­LOSUM AGENESIS WITH ASSOCIATED INTER­HEMISPHERIC CYSTS: LONG-TERM OUTCOME IN 23 CHILDREN • S. Uccella, B. Berloco, D. Tortora, V. Capra, M. Ravegnani, D. Paladini, D. Pastorino, M.M. Mancardi, M. SeverinoABS 3. A COMPARISON BETWEEN THE FETAL AB­DOMINAL CIRCUMFERENCE DISTRIBUTION OF INTERGROWTH-21ST STANDARD VERSUS THE ITALIAN CUSTOMIZED FETAL GROWTH CHARTS IN DETECTING EARLY AND LATE ONSET SMALL FOR GESTATIONAL AGE INFANTS IN A HIGH-RISK POPULATION • E. Brunelli, D. Di Martino, F. Fusè, E. Ferrazzi, A. FarinaABS 4. UMBILICAL AND MIDDLE CEREBRAL ARTERY DOPPLER IN HYPERTENSIVE DISORDERS OF PREGNANCY: LOOKING BEYOND A NORMALLY GROWN FETUS • S. Salvi, S. Simeone, S. Moresi, E. Mastantuoni, S. Garofalo, F. Mecacci, S. De Carolis, A. Lanzone, S. FerrazzaniABS 5. THE IMPACT OF MATERNAL OBESITY ON PLACENTAL MODIFICATIONS AND INTRA­UTERINE FETAL DEATH • S. Fieni, A. Ferretti, M. Ambroggi, E.M. Silini, G. Pedrazzi, T. Ghi, T. FruscaABS 6. FOUR CASES OF NEONATAL LIMB ISCHEMIA WITH DIFFERENT ETIOLOGY • A. Turri, M. Pellegrino, G. Pavone, T. Izzo, S. Faiola, M.M. Lanna, M.A. Rustico, I. CetinABS 7. EFFECT OF POSITIVE URINE CULTURE AND VAGINAL SWAB ON THE EFFECTIVENESS OF PROGESTOGENS AS MAINTENANCE TO­COLYSIS: SECONDARY ANALYSIS OF THE PROTECT TRIAL • L. Pignatti, P. Vergani, M. Di

  3. Selected Abstracts of the 20th National Congress of the Italian Society of Perinatal Medicine (Società Italiana di Medicina Perinatale, SIMP; Catania (Italy; March 22-24, 2018; Session “Prematurity”

    Directory of Open Access Journals (Sweden)

    --- Various Authors

    2018-03-01

    Full Text Available 20th National Congress of the Italian Society of Perinatal Medicine (Società Italiana di Medicina Perinatale, SIMP Catania (Italy • March 22nd-24th, 2018SIMP PRESIDENTIrene CetinCONGRESS PRESIDENTSNicola Chianchiano, Angela Motta SCIENTIFIC COMMITTEEMariarosaria Di Tommaso, Gianpaolo Donzelli, Luca Ramenghi----------Guest Editors: Irene Cetin, Nicola Chianchiano, Angela Motta ----------Session “Prematurity”ABS 1. EARLY PAIN EXPERIENCES AND NEONATAL CEREBRAL CONNECTIVITY EVALUATED WITH rs-FMRI AT TERM CORRECTED AGE • D. Tortora, C. Di Biase, M. Severino, A. Parodi, M. Malova, G. Morana, A. Rossi, L.A. RamenghiABS 2. PLACENTAL HISTOLOGY FINDINGS AS POS­SIBLE RISK FACTORS FOR MRI-DETECTED BRAIN LESIONS IN VLBW INFANTS • A. Parodi, M. Re, L. De Angelis, D. Brignole, M.P. Brisigotti, M.G. Calevo, M. Malova, A. Sannia, M. Severino, G. Morana, D. Tortora, A. Rossi, E. Fulcheri, L.A. RamenghiABS 3. PATTERN OF NEURODEVELOPMENTAL OUT­COME AT 2 YEARS OF CORRECTED AGE (CA IN ISOLATED LOW-GRADE INTRA­VENTRICULAR HEMORRHAGES VS LOW-GRADE CEREBELLAR HEMORRHAGES • A. Parodi, M. Malova, S. Uccella, L. Boeri, E. De Grandis, A. Sannia, M. Severino, G. Morana, D. Tortora, A. Rossi, E. Veneselli, L.A. RamenghiABS 4. TWIN PREGNANCY AND PRETERM BIRTH: FOCUS ON “AUTOPHAGY BIOMARKERS” AS REGULATORS OF THE IMMUNE RESPONSE • G. Di Rienzo, S. Paccosi, A. Parenti, E. Magro-Malosso, G. Sisti, M. Di Tommaso, F. PetragliaABS 5. THE ROLE OF ELASTOGRAPHY IN PREDICTING PRETERM BIRTH • G. Nazzaro, E. Salzano, R. Iazzetta, M. Miranda, M. LocciABS 6. MRI-DIAGNOSED WHITE MATTER LESIONS IN THE BRAIN OF VLBW BABIES: RISK FACTOR ANALYSIS • A. Parodi, S. Raffa, V. Cardiello, M. Malova, A. Sannia, M. Severino, G. Morana, D. Tortora, M.G. Calevo, A. Rossi, L.A. RamenghiABS 7. MATERNAL AND FETAL OUTCOMES IN TWIN OOCYTE DONATION PREGNANCIES: EXPERIENCE OF A TERTIARY REFERRAL OBSTETRIC ITALIAN CENTER • F. Fuse’, A. Turri, L. Primerano, O. Fornaciari, E

  4. Italian Modernities

    DEFF Research Database (Denmark)

    Thomassen, Bjørn; Forlenza, Rosario

    assumptions that have substituted for thought and that have perpetuated prejudices both within and outside Italy’s borders. Grounded in meticulous historical and ethnological research, Italian Modernities deserves as wide an audience as its scholarship is deep.” (Michael Herzfeld, Ernest E. Monrad Professor...

  5. Selected Abstracts of the 20th National Congress of the Italian Society of Perinatal Medicine (Società Italiana di Medicina Perinatale, SIMP; Catania (Italy; March 22-24, 2018; Session “New Frontiers in Perinatal Medicine”

    Directory of Open Access Journals (Sweden)

    --- Various Authors

    2018-03-01

    Full Text Available 20th National Congress of the Italian Society of Perinatal Medicine (Società Italiana di Medicina Perinatale, SIMP Catania (Italy • March 22nd-24th, 2018SIMP PRESIDENTIrene CetinCONGRESS PRESIDENTSNicola Chianchiano, Angela Motta SCIENTIFIC COMMITTEEMariarosaria Di Tommaso, Gianpaolo Donzelli, Luca Ramenghi----------Guest Editors: Irene Cetin, Nicola Chianchiano, Angela Motta ----------Session “New Frontiers in Perinatal Medicine”ABS 1. CLINICAL AND METABOLIC OUTCOMES IN PREG­NANT WOMEN AT RISK FOR GDM SUPPLEMENTED WITH MYO-INOSITOL. A SEC­ONDARY ANALYSIS FROM 3 RCTS • A. Santamaria, A. Alibrandi, A. di Benedetto, B. Pintaudi, F. Corrado, F. Facchinetti, R. d’AnnaABS 2. PRE AND POST-NATAL CEREBRAL HEMO­DYNAMICS: CORRELATION WITH BIRTH WEIGHT, BASE ACID BALANCE AND NEO­NATAL OUTCOME • D. Buca, F. D’Antonio, F. Fanfani, S. Gustapane, M. Leombroni, L. Di Tizio, A. Ricciardulli, M. LiberatiABS 3. ROLE OF GLYCEMIC CONTROL IN THE DE­VELOPMENT OF PREECLAMPSIA IN DIA­BETIC WOMEN • S. Ottanelli, C. Serena, S. Simeone, M.P. Rambaldi, F. MecacciABS 4. MATERNAL NUTRITION AND LIFESTYLE AS PREDICTORS OF PLACENTAL FUNCTION IN THE FIRST TRIMESTER OF PREGNANCY • I. di Bartolo, F. Parisi, C. Melinte, I. CetinABS 5. ADHERENCE TO MEDITERRANEAN DIET, WEIGHT GAIN AND THICKNESS SKINFOLD IN NORMAL WEIGHT PREGNANT WOMEN WITH OR WITHOUT GESTATIONAL DIABETES MELLITUS • A. Spadafranca, S. Digiacomo, A. Battezzati, S. Bertoli, I. Cetin, E. FerrazziABS 6. THE ROLE OF ULTRASONOGRAPHY IN PRENATAL DIAGNOSIS OF CONGENITAL VASCULAR ANOMALIES • T. Izzo, S. Faiola, M. Lanna, L. Spaccini, E. Cattaneo, V. Baraldini, A. Turri, M.A. RusticoABS 7. THREE-DIMENSIONAL AUTOMATED MEASURE OF THE FETAL THIGH IN HIGH-RISK PREG­NANCIES TO PREDICT FETAL WEIGHT • T. Izzo, E. Ferrazzi, A. Farina, S. Rigano, V. Signorelli, M. Elisabetta, F. Fusè, D. Di MartinoABS 8. IMPACT OF BLADDER FILLING ON UTERINE ARTERY BLOOD FLOW INDICES IN THE FIRST TRIMESTER OF PREGNANCY

  6. Phenotypic and genetic analyses of the varroa sensitive hygienic trait in Russian honey bee (Hymenoptera: Apidae) colonies

    OpenAIRE

    Kirrane, Maria J.; de Guzman, Lilia I.; Holloway, Beth; Frake, Amanda M.; Rinderer, Thomas E.; Whelan, Padraig M.

    2015-01-01

    Varroa destructorcontinues to threaten colonies of European honey bees. General hygiene, and more specific Varroa Sensitive Hygiene (VSH), provide resistance towards the Varroa mite in a number of stocks. In this study, 32 Russian (RHB) and 14 Italian honey bee colonies were assessed for the VSH trait using two different assays. Firstly, colonies were assessed using the standard VSH behavioural assay of the change in infestation of a highly infested donor comb after a one-week exposure. Secon...

  7. Selected Abstracts of the 20th National Congress of the Italian Society of Perinatal Medicine (Società Italiana di Medicina Perinatale, SIMP; Catania (Italy; March 22-24, 2018; Session “Perinatal medicine”

    Directory of Open Access Journals (Sweden)

    --- Various Authors

    2018-03-01

    Full Text Available 20th National Congress of the Italian Society of Perinatal Medicine (Società Italiana di Medicina Perinatale, SIMP Catania (Italy • March 22nd-24th, 2018SIMP PRESIDENTIrene CetinCONGRESS PRESIDENTSNicola Chianchiano, Angela Motta SCIENTIFIC COMMITTEEMariarosaria Di Tommaso, Gianpaolo Donzelli, Luca Ramenghi----------Guest Editors: Irene Cetin, Nicola Chianchiano, Angela Motta ----------Session “Perinatal medicine”ABS 1. INDUCTION OF LABOR IN CONSTITUTIONALLY SMALL FOR GESTATIONAL AGE FETUSES AT TERM OF PREGNANCY: DOES GESTATIONAL AGE IMPACT DELIVERY OUTCOME? • R. Cuzzola, V. Seravalli, E. Magro-Malosso, G. Rovero, F. Perelli, M. Di Tommaso, F. PetragliaABS 2. PREDICTION OF PRETERM BIRTH IN ASYMPTOMATIC WOMEN WITH REDUCED CERVICAL LENGTH: A PROSPECTIVE STUDY ON MATERNAL INFLAMMATORY MARKERS • C. Linari, E. Magro-Malosso, S. Paccosi, A. Parenti, V. Seravalli, M. Di Tommaso, F. PetragliaABS 3. MULTIVARIABLE EVALUATION OF THE MATERNAL HEMODYNAMIC PROFILE IN HIGH-RISK PREGNANCIES COMPLICATED BY INTRAUTERINE GROWTH RESTRICTION: A PROSPECTIVE STUDY • D. Di Martino, E. Ferrazzi, M. Garbin, F. Fusè, T. Izzo, J. Duvekot, A. FarinaABS 4. REGIONAL AUDIT SYSTEM IMPLEMENTA­TION FOR STILLBIRTH: A WAY TO BETTER UNDERSTAND AND TARGET THE PHENOMENON • G. Po’, F. Monari, F. Zanni, C. Lupi, F. Facchinetti1 for the Regional Audit System for Stillbirth GroupABS 5. FETAL GENDER PAIRING AND OBSTETRIC OUTCOME IN TWIN PREGNANCY: A 7-YEARS RETROSPECTIVE STUDY AT SINGLE CENTRE • S. Vannuccini, C. Linari, M. Aldinucci, M. Di Tommaso, F. PetragliaABS 6. INOSITOL STEREOISOMERS SUPPLEMENTA­TION AND INCIDENCE OF GESTATIONAL DIABETES MELLITUS IN WOMEN AT HIGH RISK OF THIS DISORDER • G. Pavone, B. Matarrelli, D. Buca, M. Leombroni, E. Vitacolonna, P.A. Mattei, C. CelentanoABS 7. CESAREAN SECTION: DELAYED CORD CLAMPING OR MILKING? • S. Consonni, I. Vaglio Tessitore, C. Conti, C. Plevani, F. Torcasio, A. Pintucci, F. Bonati, A. LocatelliABS 8. ARABIN

  8. A Europe-wide experiment for assessing the impact of genotype-environment interactions on the vitality and performance of honey bee colonies

    DEFF Research Database (Denmark)

    Costa, Cecilia; Büchler, Ralph; Berg, Stefan

    2012-01-01

    An international experiment to estimate the importance of genotype-environment interactions on vitality and performance of honey bees and on colony losses was run between July 2009 and March 2012. Altogether 621 bee colonies, involving 16 different genetic origins of European honey bees, were...

  9. Mad Honey Disease

    Directory of Open Access Journals (Sweden)

    Laurentiu Broscaru

    2017-11-01

    Full Text Available A 46-years old woman presented with acute onset of nausea, vomiting and prostration in the ER. She appeared ill and was poorly responsive to verbal stimuli. The physical examination showed a systolic blood pressure of 60 mmHg and a pulse of 40 bpm. ECG was notable for slight ST-elevations in the inferior leads. Right ventricular myocardial infarction with cardiogenic shock and bradycardia was suspected. Supportive therapy with catecholamines was initiated and a emergency coronary angiography was arranged. However, lab results showed normal troponin levels and a subsequent echocardiogram showed the absence of abnormal wall motions. By thorough history taking with the spouse it turned out that the patient had consumed a Turkish honey approximately an hour before the beginning of the symptoms. The patient made a full recovery within 24 hours with only supportive therapy. In retrospect the clinical presentation was highly indicative of poisoning with Grayanotoxins from a plant, Rhododendron, which is found as contaminant in some sorts of honey in the Black Sea area. A pollen analysis confirmed the presence of Rhododendron in a honey sample.  Historically this poisoning is mentioned over the millennia as mad honey disease. The ST-elevations in the ECG were a sign of early repolarization, a non-pathological finding.

  10. Survey of the Health Status of Some Honey Bee Queens in Italy

    Directory of Open Access Journals (Sweden)

    Porporato Marco

    2015-12-01

    Full Text Available While observing: non-acceptance, frequent replacements, and reduced performance in honey bee (Apis mellifera ligustica queens, we were induced to analyse a certain number of queens to detect the causes. For this purpose, 99 newly mated queens were bought from 20 Italian queen breeders. In addition, 109 older or at-the-end-of-their-career queens, that showed poor productivity, were collected from honey production hives throughout Italy. All the queens were dissected to check the status of their reproductive system and/or the presence of various anomalies and diseases.

  11. Ensuring an Italian Renaissance

    Science.gov (United States)

    Hallock, Ann H.

    1978-01-01

    Factors contributing to the renaissance of Italian and the goals of students who study the language are discussed. Alternatives to rote learning in the classroom and ways to generate interest in Italian in the community are suggested. (SW)

  12. Polychlorinated biphenyls in honey bees

    Energy Technology Data Exchange (ETDEWEB)

    Morse, R.A.; Culliney, T.W.; Gutenmann, W.H.; Littman, C.B.; Lisk, D.J.

    1987-02-01

    Honey bees (Apis mellifera L.) may traverse a radius of several miles from their hives and contact innumerable surfaces during their collection of nectar, pollen, propolis and water. In the process, they may become contaminated with surface constituents which are indicative of the type of environmental pollution in their particular foraging area. Honey has also been analyzed as a possible indicator of heavy metal pollution. Insecticides used in the vicinity of bee hives have been found in bees and honey. It has been recently reported that appreciable concentrations of polychlorinated biphenyls (PCBs) have been found in honey bees sampled throughout Connecticut. In the work reported here, an analytical survey was conducted on PCBs in honey bees, honey, propolis and related samples in several states to learn the extent of contamination and possible sources.

  13. Italian: Area Background Information.

    Science.gov (United States)

    Defense Language Inst., Washington, DC.

    This booklet has been assembled in order to provide students of Italian with a compact source of cultural information on their target area. Chapters include discussion of: (1) introduction to Italian; (2) origins of the Italian population; (3) geography; (4) history including the Roman Era, the Middle Ages, the Renaissance, the "Risorgimento," and…

  14. Physicochemical Parameters and Bioactive Compounds of Strawberry Tree (Arbutus unedo L. Honey

    Directory of Open Access Journals (Sweden)

    Pablo A. Ulloa

    2015-01-01

    Full Text Available Botanical origin, physicochemical properties (ash, colour, diastase activity, electrical conductivity (EC, hydroxymethylfurfural (HMF, moisture, optical rotation (OP, pH, reducing sugars, total acidity, total soluble solids, and water activity, bioactive compounds (BC, and antioxidant activity obtained from strawberry tree honey from South Portugal were investigated. Results showed that the pollen analysis and physicochemical parameters were found within to meet international honey specifications. Significant differences (P<0.05 in results of ash content, EC, HMF, OP and colour when were compared with analogous famous Italian honey (Sardinia island. For BC, total phenolic and total flavonoid content were 94.47 mg gallic acid/100 g and 5.33 mg quercetin/100 g, respectively. Concerning Portuguese honey, it was also found that radical scavenging activity (DPPH assay was 43.46% and antioxidant activity was 18.85 mg ascorbic acid equivalent/100 g and 9.92 mg quercetin equivalent/100 g. These results confirmed that Portuguese strawberry tree honey has the highest antioxidant activity, when compared with other kinds of honey. This complete report demonstrates advantages and can help to promote consumption and shown their benefical properties (e.g., antioxidant; which will may increase the commercial value.

  15. Carbonyl Compounds in Manuka Honey:

    OpenAIRE

    Rückriemen, Jana

    2018-01-01

    New Zealand is the world’s third-largest honey exporter by value behind China and Argentina and honey accounts for up to 80 % of New Zealand’s exports. However, it is only the 16th biggest global supplier by volume. Manuka honey from New Zealand is sold for premium prices and merchandised for its health benefits. Because of its exceptional antibacterial effect, there is a strong market demand and the price for a kilogram of manuka honey has tripled in recent years (Ministry for Primary Indust...

  16. Analysis of Romania’s Honey Market

    Directory of Open Access Journals (Sweden)

    Ion Pîrvuţoiu

    2011-10-01

    Full Text Available The paper aimed to present the evolution of Romania’s honey market in the period 1990-1997, by means of the specific indicators: number of beekeepers, number of bee families, honey yield and production, ecological honey production, honey trade and price. The analysis has pointed out that beekeeping has been continuously developing mainly after the year 2000. In 2007, 34,971 beekeepers were keeping 1,085,905 bee families, producing 18.56 kg honey per family in average, meaning 20,159 honey tons. The major producing regions are the Central, South West, West, North East, South East and North West areas. Romania produces 50 % mixed honey, 30 % Robinia honey and 25 % lime honey and honey price is related to honey quality. Ecological honey is produced in 584 apiaries and accounted for 2,300 tones in 2008. Honey consumption per capita is 0.19 kg, still at a low level compared to other EU countries. In 2007, Romania exported 6,236 tons of honey and imported 1,8 tones. Romania is a net honey exporter having a positive trade balance.Romania produces 6.26 % of the EU honey production and 1.87 % of world production. It also contributes by 5.67 % to the EU honey exports and by 1.53 % to the world exports.

  17. Viral diseases in honey bee queens

    DEFF Research Database (Denmark)

    Francis, Roy Mathew

    Honey bees are important insects for human welfare, due to pollination as well as honey production. Viral diseases strongly impact honey bee health, especially since the spread of varroa mites. This dissertation deals with the interactions between honey bees, viruses and varroa mites. A new tool...... was developed to diagnose three viruses in honey bees. Quantitative PCR was used to investigate the distribution of two popular viruses in five different tissues of 86 honey bee queens. Seasonal variation of viral infection in honey bee workers and varroa mites were determined by sampling 23 colonies under...

  18. Honey bee pathology: current threats to honey bees and beekeeping.

    Science.gov (United States)

    Genersch, Elke

    2010-06-01

    Managed honey bees are the most important commercial pollinators of those crops which depend on animal pollination for reproduction and which account for 35% of the global food production. Hence, they are vital for an economic, sustainable agriculture and for food security. In addition, honey bees also pollinate a variety of wild flowers and, therefore, contribute to the biodiversity of many ecosystems. Honey and other hive products are, at least economically and ecologically rather, by-products of beekeeping. Due to this outstanding role of honey bees, severe and inexplicable honey bee colony losses, which have been reported recently to be steadily increasing, have attracted much attention and stimulated many research activities. Although the phenomenon "decline of honey bees" is far from being finally solved, consensus exists that pests and pathogens are the single most important cause of otherwise inexplicable colony losses. This review will focus on selected bee pathogens and parasites which have been demonstrated to be involved in colony losses in different regions of the world and which, therefore, are considered current threats to honey bees and beekeeping.

  19. Antibacterial efficacy of raw and commercially available honey

    African Journals Online (AJOL)

    Administrator

    2011-09-19

    Sep 19, 2011 ... Key words: Honey, antibacterial activity, raw honey, commercially available honey, minimum inhibitory ... against pathogenic bacteria, oral bacteria as well as food .... explore the possible benefits of the use of honey among.

  20. MICROBIOLOGICAL COMPARISON BETWEEN HONEY IN JAR AND HONEY IN COMB FOR HUMAN CONSUMPTION

    Directory of Open Access Journals (Sweden)

    G. Formato

    2013-02-01

    Full Text Available The Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana, during August-July 2007 analyzed, for the microbial aspects, 37 samples of jar honey and 53 samples of honey in comb obtained from 37 farms of Latium Region. In the jar honey there weren’t values up to 1*103 colony-forming unit (CFU/g of bacteria mesophiles, while in the honey in comb it was not up to 2*103 CFU/g. Bacillus cereus was found in 22 samples (41,5% of honey in comb and in 18 samples (48,6% of jar honey; Clostridium perfringens was found in 6 (11,3% samples of honey in comb and in 6 samples (16,2% of jar honey; Clostridium baratii was found in 1 (1,9% sample of honey in comb and in 1 sample (2,7% of jar honey; coagulase-positive staphylococci were found in 4 (11,3% samples of honey in comb and in 4 samples (10,8% of jar honey; Clostridium sordelli was found in 2 samples (3,8% of honey in comb and in 1 sample (2,7% of jar honey. Only 2 samples of honey in comb and 1 sample of jar honey had yeasts up to 1000 CFU/g. Finally, 9 samples (24,3% of jar honey and 16 samples (30,2% of honey in jar were positives for moulds.

  1. Italian information geographies

    Directory of Open Access Journals (Sweden)

    Maria Paradiso

    2013-05-01

    Full Text Available Introduction A range of papers focusing on Italian cases of ICTs use and changes in society are presented here in this NETCOM issue. A national research group on Geography of Information Society was founded in 2007 and hosted by the Italian Geographical Society later evolved in a specialty group within AgeI, the Association of Italian Geographers. This issue brings together papers from members of the Italian specialty group along the general theme of Internet mediation in everyday life. A pre...

  2. A solid-phase extraction procedure coupled to 1H NMR, with chemometric analysis, to seek reliable markers of the botanical origin of honey

    International Nuclear Information System (INIS)

    Beretta, Giangiacomo; Caneva, Enrico; Regazzoni, Luca; Bakhtyari, Nazanin Golbamaki; Maffei Facino, Roberto

    2008-01-01

    The aim of this work was to establish an analytical method for identifying the botanical origin of honey, as an alternative to conventional melissopalynological, organoleptic and instrumental methods (gas-chromatography coupled to mass spectrometry (GC-MS), high-performance liquid chromatography HPLC). The procedure is based on the 1 H nuclear magnetic resonance (NMR) profile coupled, when necessary, with electrospray ionisation-mass spectrometry (ESI-MS) and two-dimensional NMR analyses of solid-phase extraction (SPE)-purified honey samples, followed by chemometric analyses. Extracts of 44 commercial Italian honeys from 20 different botanical sources were analyzed. Honeydew, chestnut and linden honeys showed constant, specific, well-resolved resonances, suitable for use as markers of origin. Honeydew honey contained the typical resonances of an aliphatic component, very likely deriving from the plant phloem sap or excreted into it by sap-sucking aphids. Chestnut honey contained the typical signals of kynurenic acid and some structurally related metabolite. In linden honey the 1 H NMR profile gave strong signals attributable to the mono-terpene derivative cyclohexa-1,3-diene-1-carboxylic acid (CDCA) and to its 1-O-β-gentiobiosyl ester (CDCA-GBE). These markers were not detectable in the other honeys, except for the less common nectar honey from rosa mosqueta. We compared and analyzed the data by multivariate techniques. Principal component analysis found different clusters of honeys based on the presence of these specific markers. The results, although obviously only preliminary, suggest that the 1 H NMR profile (with HPLC-MS analysis when necessary) can be used as a reference framework for identifying the botanical origin of honey

  3. A solid-phase extraction procedure coupled to {sup 1}H NMR, with chemometric analysis, to seek reliable markers of the botanical origin of honey

    Energy Technology Data Exchange (ETDEWEB)

    Beretta, Giangiacomo [Istituto di Chimica Farmaceutica e Tossicologica ' Pietro Pratesi' , Faculty of Pharmacy, University of Milan, via Mangiagalli 25, 20133 Milan (Italy)], E-mail: giangiacomo.beretta@unimi.it; Caneva, Enrico [Ciga - Centro Interdipartimentale Grandi Apparecchiature, University of Milan, via Golgi 19, 20133 Milan (Italy); Regazzoni, Luca; Bakhtyari, Nazanin Golbamaki; Maffei Facino, Roberto [Istituto di Chimica Farmaceutica e Tossicologica ' Pietro Pratesi' , Faculty of Pharmacy, University of Milan, via Mangiagalli 25, 20133 Milan (Italy)

    2008-07-14

    The aim of this work was to establish an analytical method for identifying the botanical origin of honey, as an alternative to conventional melissopalynological, organoleptic and instrumental methods (gas-chromatography coupled to mass spectrometry (GC-MS), high-performance liquid chromatography HPLC). The procedure is based on the {sup 1}H nuclear magnetic resonance (NMR) profile coupled, when necessary, with electrospray ionisation-mass spectrometry (ESI-MS) and two-dimensional NMR analyses of solid-phase extraction (SPE)-purified honey samples, followed by chemometric analyses. Extracts of 44 commercial Italian honeys from 20 different botanical sources were analyzed. Honeydew, chestnut and linden honeys showed constant, specific, well-resolved resonances, suitable for use as markers of origin. Honeydew honey contained the typical resonances of an aliphatic component, very likely deriving from the plant phloem sap or excreted into it by sap-sucking aphids. Chestnut honey contained the typical signals of kynurenic acid and some structurally related metabolite. In linden honey the {sup 1}H NMR profile gave strong signals attributable to the mono-terpene derivative cyclohexa-1,3-diene-1-carboxylic acid (CDCA) and to its 1-O-{beta}-gentiobiosyl ester (CDCA-GBE). These markers were not detectable in the other honeys, except for the less common nectar honey from rosa mosqueta. We compared and analyzed the data by multivariate techniques. Principal component analysis found different clusters of honeys based on the presence of these specific markers. The results, although obviously only preliminary, suggest that the {sup 1}H NMR profile (with HPLC-MS analysis when necessary) can be used as a reference framework for identifying the botanical origin of honey.

  4. Honey Do Franchising Group, Inc. Information Sheet

    Science.gov (United States)

    Honey Do Franchising Group, Inc., a/k/a The Honey Do Service, Inc. (the Company) is located in Bristol, Virginia. The settlement involves renovation activities conducted at properties constructed prior to 1978, located in Bristol, Virginia.

  5. Bee Alert: Africanized Honey Bee Facts

    OpenAIRE

    Lazaneo, Vincent

    2002-01-01

    Information on how to “bee prepared” for the movement of the Africanized honey bee into California. Includes tips on how to identify Africanized honey bees, bee-proofing your home, and what to do if stung.

  6. Melissopalynological Characterization of North Algerian Honeys

    Directory of Open Access Journals (Sweden)

    Samira Nair

    2013-03-01

    Full Text Available A pollen analysis of Algerian honey was conducted on a total of 10 honey samples. The samples were prepared using the methodology described by Louveaux et al., that was then further adapted by Ohe et al. The samples were subsequently observed using light microscopy. A total of 36 pollen taxa were discovered and could be identified in the analyzed honey samples. Seventy percent of the studied samples belonged to the group ofmonofloral honeys represented by Eucalyptus globulus, Thymus vulgaris, Citrus sp. and Lavandula angustifolia. Multifloral honeys comprised 30% of the honey samples, with pollen grains of Lavandula stoechas (28.49% standing out as the most prevalent. Based on cluster analysis, two different groups of honey were observed according to different pollen types found in the samples. The identified pollen spectrum of honey confirmed their botanical origin.

  7. Role of honey in modern medicine

    Directory of Open Access Journals (Sweden)

    Sultan Ayoub Meo

    2017-07-01

    Full Text Available Use of honey has a very long history. Honey has been used since ancient time due to its nutritional and therapeutic values. There had been varied ways of consumption honey including its use as a sweetener and flavoring agent. Honey is produced all over the world. The most important nutriment of honey is carbohydrates present in the form of monosaccharides, fructose and glucose. Honey plays an important role as an antioxidant, anti-inflammatory, anti-bacterial agent and augments the adherence of skin grafts and wound healing process. The role of honey has been acknowledged in the scientific literature and there is convincing evidence in support of its antioxidant and antibacterial nature, cough prevention, fertility and wound healing properties. However, its use has been controversially discussed and has not been well accepted in the modern medicine. The aim of this review was explore and highlight the role of honey in modern medicine.

  8. Genetics, Synergists, and Age Affect Insecticide Sensitivity of the Honey Bee, Apis mellifera

    Science.gov (United States)

    Rinkevich, Frank D.; Margotta, Joseph W.; Pittman, Jean M.; Danka, Robert G.; Tarver, Matthew R.; Ottea, James A.; Healy, Kristen B.

    2015-01-01

    The number of honey bee colonies in the United States has declined to half of its peak level in the 1940s, and colonies lost over the winter have reached levels that are becoming economically unstable. While the causes of these losses are numerous and the interaction between them is very complex, the role of insecticides has garnered much attention. As a result, there is a need to better understand the risk of insecticides to bees, leading to more studies on both toxicity and exposure. While much research has been conducted on insecticides and bees, there have been very limited studies to elucidate the role that bee genotype and age has on the toxicity of these insecticides. The goal of this study was to determine if there are differences in insecticide sensitivity between honey bees of different genetic backgrounds (Carniolan, Italian, and Russian stocks) and assess if insecticide sensitivity varies with age. We found that Italian bees were the most sensitive of these stocks to insecticides, but variation was largely dependent on the class of insecticide tested. There were almost no differences in organophosphate bioassays between honey bee stocks (bees aged, the sensitivity to phenothrin significantly decreased, but the sensitivity to naled significantly increased. These results demonstrate the variation arising from the genetic background and physiological transitions in honey bees as they age. This information can be used to determine risk assessment, as well as establishing baseline data for future comparisons to explain the variation in toxicity differences for honey bees reported in the literature. PMID:26431171

  9. The authenticity of honey in relation to quality parameters

    OpenAIRE

    Dugalić-Vrndić, N.; Kečkeš, J.; Mladenović, M.

    2011-01-01

    In the Serbian market can be found significant quantity of honey which authenticity can be doubt. Honey is changed sensory, as well as in certain chemical quality parameters. Sometimes it happens that honey is in accordance to quality requirements but that doesn’t mean that it’s natural and authentic honey. Many analysts who are engage in testing the quality of honey have experience to recognize the honey that isn't from honey bees but the work of ...

  10. Honey bee (Apis mellifera) colony health and pathogen composition in migratory beekeeping operations involved in California almond pollination.

    Science.gov (United States)

    Glenny, William; Cavigli, Ian; Daughenbaugh, Katie F; Radford, Rosemarie; Kegley, Susan E; Flenniken, Michelle L

    2017-01-01

    Honey bees are important pollinators of agricultural crops. Pathogens and other factors have been implicated in high annual losses of honey bee colonies in North America and some European countries. To further investigate the relationship between multiple factors, including pathogen prevalence and abundance and colony health, we monitored commercially managed migratory honey bee colonies involved in California almond pollination in 2014. At each sampling event, honey bee colony health was assessed, using colony population size as a proxy for health, and the prevalence and abundance of seven honey bee pathogens was evaluated using PCR and quantitative PCR, respectively. In this sample cohort, pathogen prevalence and abundance did not correlate with colony health, but did correlate with the date of sampling. In general, pathogen prevalence (i.e., the number of specific pathogens harbored within a colony) was lower early in the year (January-March) and was greater in the summer, with peak prevalence occurring in June. Pathogen abundance in individual honey bee colonies varied throughout the year and was strongly associated with the sampling date, and was influenced by beekeeping operation, colony health, and mite infestation level. Together, data from this and other observational cohort studies that monitor individual honey bee colonies and precisely account for sampling date (i.e., day of year) will lead to a better understanding of the influence of pathogens on colony mortality and the effects of other factors on these associations.

  11. Honey bee (Apis mellifera colony health and pathogen composition in migratory beekeeping operations involved in California almond pollination.

    Directory of Open Access Journals (Sweden)

    William Glenny

    Full Text Available Honey bees are important pollinators of agricultural crops. Pathogens and other factors have been implicated in high annual losses of honey bee colonies in North America and some European countries. To further investigate the relationship between multiple factors, including pathogen prevalence and abundance and colony health, we monitored commercially managed migratory honey bee colonies involved in California almond pollination in 2014. At each sampling event, honey bee colony health was assessed, using colony population size as a proxy for health, and the prevalence and abundance of seven honey bee pathogens was evaluated using PCR and quantitative PCR, respectively. In this sample cohort, pathogen prevalence and abundance did not correlate with colony health, but did correlate with the date of sampling. In general, pathogen prevalence (i.e., the number of specific pathogens harbored within a colony was lower early in the year (January-March and was greater in the summer, with peak prevalence occurring in June. Pathogen abundance in individual honey bee colonies varied throughout the year and was strongly associated with the sampling date, and was influenced by beekeeping operation, colony health, and mite infestation level. Together, data from this and other observational cohort studies that monitor individual honey bee colonies and precisely account for sampling date (i.e., day of year will lead to a better understanding of the influence of pathogens on colony mortality and the effects of other factors on these associations.

  12. Physiochemical characteristics of honey obtained from traditional ...

    African Journals Online (AJOL)

    Bheema

    2002-09-14

    Sep 14, 2002 ... There are about 201,000 bee colonies and 2,300 tones of honey production in a year (BoANRD, 2008). ..... to honey. 74/409/EEC, Official Journal of the European communities, NOL 221/14. ... Composition of American honey.

  13. 27 CFR 24.203 - Honey wine.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Honey wine. 24.203 Section... THE TREASURY LIQUORS WINE Production of Agricultural Wine § 24.203 Honey wine. (a) Subject to paragraph (b) of this section, a winemaker, in the production of wine from honey, may add the following: (1...

  14. The Italian energy sector

    International Nuclear Information System (INIS)

    Anon.

    1997-01-01

    The energy sector in Italy, as in Europe and in many other areas of the world, is undergoing rapid and profound changes. The 1986 ratification of the European Single Act was intended to create a European internal market, where circulation of people, capital, goods, and services would reach the highest possible liberalization. In 1988, in the document The Energy Internal Market, the European Union (EU) commission stressed the need for creation of an internal energy market--free of obstacles--to increase security of supply, to reduce costs, and to strengthen the competitiveness of the European economic system. In 1990, the Community Council adopted directives to implement the EU energy sector. This article describes Italy's role as part of the EU energy sector. It covers the following topics: the Italian energy sector; electricity vs gas transportation; project finance; recent developments advance Italian power industry; specifying powerplant components -- Italian stype; buyers' guide to Italian equipment, services

  15. Honey: Single food stuff comprises many drugs

    Directory of Open Access Journals (Sweden)

    Shahid Ullah Khan

    2018-02-01

    Full Text Available Honey is a natural food item produced by honey bees. Ancient civilizations considered honey as a God gifted prestigious product. Therefore, a huge literature is available regarding honey importance in almost all religions. Physically, honey is a viscous and jelly material having no specific color. Chemically, honey is a complex blend of many organic and inorganic compounds such as sugars, proteins, organic acids, pigments, minerals, and many other elements. Honey use as a therapeutic agent is as old as human civilization itself. Prior to the appearance of present day drugs, honey was conventionally used for treating many diseases. At this instant, the modern research has proven the medicinal importance of honey. It has broad spectrum anti-biotic, anti-viral and anti-fungal activities. Honey prevents and kills microbes through different mechanism such as elevated pH and enzyme activities. Till now, no synthetic compound that works as anti-bacterial, anti-viral and anti-fungal drugs has been reported in honey yet it works against bacteria, viruses and fungi while no anti-protozoal activity has been reported. Potent anti-oxidant, anti-inflammatory and anti-cancerous activities of honey have been reported. Honey is not only significant as anti-inflammatory drug that relieve inflammation but also protect liver by degenerative effects of synthetic anti-inflammatory drugs. This article reviews physico-chemical properties, traditional use of honey as medicine and mechanism of action of honey in the light of modern scientific medicinal knowledge.

  16. Trace elements in wild and orchard honeys

    Energy Technology Data Exchange (ETDEWEB)

    Almeida-Silva, M.; Canha, N.; Galinha, C.; Dung, H.M. [Instituto Tecnologico e Nuclear, URSN, E.N. 10, 2686-953 Sacavem (Portugal); Freitas, M.C., E-mail: cfreitas@itn.pt [Instituto Tecnologico e Nuclear, URSN, E.N. 10, 2686-953 Sacavem (Portugal); Sitoe, T. [Instituto Tecnologico e Nuclear, URSN, E.N. 10, 2686-953 Sacavem (Portugal)

    2011-11-15

    The present study aims the identification and quantification of trace elements in two types of honey samples: Orchard honey and Wild honey from mainland Portugal. Chemical elements content was assessed by Instrumental Neutron Activation Analysis (INAA). Concentrations were determinated for Ag, As, Br, Ca, Cl, Cs, Cu, Fe, K, La, Mg, Mn, Na, Rb, Sb, Sc, U, V and Zn. The nutritional values of both honey types were evaluated since this product contains some elements that are essential dietary nutrients for humans. Physical properties of the honey samples, such as electrical conductivy and pH, were assessed as well.

  17. Determination of proline in honey: comparison between official methods, optimization and validation of the analytical methodology.

    Science.gov (United States)

    Truzzi, Cristina; Annibaldi, Anna; Illuminati, Silvia; Finale, Carolina; Scarponi, Giuseppe

    2014-05-01

    The study compares official spectrophotometric methods for the determination of proline content in honey - those of the International Honey Commission (IHC) and the Association of Official Analytical Chemists (AOAC) - with the original Ough method. Results show that the extra time-consuming treatment stages added by the IHC method with respect to the Ough method are pointless. We demonstrate that the AOACs method proves to be the best in terms of accuracy and time saving. The optimized waiting time for the absorbance recording is set at 35min from the removal of reaction tubes from the boiling bath used in the sample treatment. The optimized method was validated in the matrix: linearity up to 1800mgL(-1), limit of detection 20mgL(-1), limit of quantification 61mgL(-1). The method was applied to 43 unifloral honey samples from the Marche region, Italy. Copyright © 2013 Elsevier Ltd. All rights reserved.

  18. Economic analysis of honey production in Edo State, Nigeria ...

    African Journals Online (AJOL)

    This research work was carried out to analyze the economics of honey production in Edo State. The objectives of the study were to examine the demographic characteristics of honey production, assess the profitability of honey bee and the problems facing honey production .The list of honey farmers in the state was ...

  19. Two Major Medicinal Honeys Have Different Mechanisms of Bactericidal Activity

    NARCIS (Netherlands)

    Kwakman, Paulus H. S.; te Velde, Anje A.; de Boer, Leonie; Vandenbroucke-Grauls, Christina M. J. E.; Zaat, Sebastian A. J.

    2011-01-01

    Honey is increasingly valued for its antibacterial activity, but knowledge regarding the mechanism of action is still incomplete. We assessed the bactericidal activity and mechanism of action of Revamil (R) source (RS) honey and manuka honey, the sources of two major medical-grade honeys. RS honey

  20. Swimming of the Honey Bees

    Science.gov (United States)

    Roh, Chris; Gharib, Morteza

    2016-11-01

    When the weather gets hot, nursing honey bees nudge foragers to collect water for thermoregulation of their hive. While on their mission to collect water, foragers sometimes get trapped on the water surface, forced to interact with a different fluid environment. In this study, we present the survival strategy of the honey bees at the air-water interface. A high-speed videography and shadowgraph were used to record the honey bees swimming. A unique thrust mechanism through rapid vibration of their wings at 60 to 150 Hz was observed. This material is based upon work supported by the National Science Foundation under Grant No. CBET-1511414; additional support by the National Science Foundation Graduate Research Fellowship under Grant No. DGE-1144469.

  1. Resource Potential Analysis Of Honey Bee Feed Apis Dorsata In Mountain Tinanggo Kolaka

    Directory of Open Access Journals (Sweden)

    Rosmarlinasiah

    2015-04-01

    Full Text Available Abstract Honey Bees feed in the form of nectar pollen and water the bees used to build nests and establish colonies. A hexagonal honeycomb as a store of honey pollen and seedlings. If feed honey bees flower plants are abundantly available continuously then the always active bees build nests and fill each cell nest of honey pollen eggs and other products. The purpose of research is to determine the types of flowering plants as a potential feed honey bees nectar and pollen. The experiment was conducted at Mount Tinanggo Kolaka Southeast Sulawesi Province which lasted from March 2013 until March 2014. Determined by purposive sample observations based on the location of the nearest and farthest honey using the method of terraced paths. Samples were placed systematically with the withdrawal of the central point on the tree path beehive a radius of 700 meters from the center of the North East South and West. Data type of plant plant density and stem diameter were analyzed to determine the importance value index and diversity index type at the tree level trees saplings and seedlings. Based on the results of the enumeration on the collected research sites by 591 plant specimens were clustered on the tree level 152 level 102 poles 178 degree and 159 degree stake seedlings. Levels of tree species diversity and relatively abundant mast high and the level of saplings and seedlings are relatively abundant. The dominant species on the tree level Meranti Shorea sp and rambutan Nephelium lappaceum levels Holea pole Cleistantus laevis Hook f and Kuma Palaquium obovatum Engl the level of saplings and seedlings levels Holea Cleistantus laevis Hook f and rambutan Nephelium lappaceum. There are 237 types of flowering plants averaging 19.75 per month flowering plants and flowering peak was in September.

  2. Biological and therapeutic effects of honey produced by honey bees and stingless bees: a comparative review

    Directory of Open Access Journals (Sweden)

    Pasupuleti Visweswara Rao

    Full Text Available ABSTRACT Honey is a natural product produced by both honey bees and stingless bees. Both types of honey contain unique and distinct types of phenolic and flavonoid compounds of variable biological and clinical importance. Honey is one of the most effective natural products used for wound healing. In this review, the traditional uses and clinical applications of both honey bee and stingless bee honey – such as antimicrobial, antioxidant, anti-inflammatory, anticancer, antihyperlipidemic, and cardioprotective properties; the treatment of eye disorders, gastrointestinal tract diseases, neurological disorders, and fertility disorders and wound healing activity are described.

  3. Honey: an immunomodulator in wound healing.

    Science.gov (United States)

    Majtan, Juraj

    2014-01-01

    Honey is a popular natural product that is used in the treatment of burns and a broad spectrum of injuries, in particular chronic wounds. The antibacterial potential of honey has been considered the exclusive criterion for its wound healing properties. The antibacterial activity of honey has recently been fully characterized in medical-grade honeys. Recently, the multifunctional immunomodulatory properties of honey have attracted much attention. The aim of this review is to provide closer insight into the potential immunomodulatory effects of honey in wound healing. Honey and its components are able to either stimulate or inhibit the release of certain cytokines (tumor necrosis factor-α, interleukin-1β, interleukin-6) from human monocytes and macrophages, depending on wound condition. Similarly, honey seems to either reduce or activate the production of reactive oxygen species from neutrophils, also depending on the wound microenvironment. The honey-induced activation of both types of immune cells could promote debridement of a wound and speed up the repair process. Similarly, human keratinocytes, fibroblasts, and endothelial cell responses (e.g., cell migration and proliferation, collagen matrix production, chemotaxis) are positively affected in the presence of honey; thus, honey may accelerate reepithelization and wound closure. The immunomodulatory activity of honey is highly complex because of the involvement of multiple quantitatively variable compounds among honeys of different origins. The identification of these individual compounds and their contributions to wound healing is crucial for a better understanding of the mechanisms behind honey-mediated healing of chronic wounds. © 2014 by the Wound Healing Society.

  4. WILD HONEY INTOXICATION: CASE REPORT

    Directory of Open Access Journals (Sweden)

    Munire Babayigit

    2013-09-01

    Full Text Available Wild honey intoxication (WHI is a rare disease that results from consuming honey produced by Rhododendron polen feeded bees. WHI develops due to grayanotoxin (GT that it contains. WHI might present with mild symptoms of gastrointestinal, cardiovascular and neurological systems or might also present in a life threatining form with AV block and cardiovascular collaps. In this report we aimed to present clinical presentation and treatment of a case of WHI. [J Contemp Med 2013; 3(3.000: 197-199

  5. How honey bees carry pollen

    Science.gov (United States)

    Matherne, Marguerite E.; Anyanwu, Gabriel; Leavey, Jennifer K.; Hu, David L.

    2017-11-01

    Honey bees are the tanker of the skies, carrying thirty percent of their weight in pollen per foraging trip using specialized orifices on their body. How do they manage to hang onto those pesky pollen grains? In this experimental study, we investigate the adhesion force of pollen to the honeybee. To affix pollen to themselves, honey bees form a suspension of pollen in nectar, creating a putty-like pollen basket that is skewered by leg hairs. We use tensile tests to show that the viscous force of the pollen basket is more than ten times the honeybee's flight force. This work may provide inspiration for the design of robotic flying pollinators.

  6. Comparative analyses of ber (zizyphus) honey with other types of honey

    International Nuclear Information System (INIS)

    Iftikhar, F.; Mehmood, R.

    2007-01-01

    Eight different honey samples were collected from different ecological areas of Pakistan and analyzed for various physico-chemical parameters. The aim was to evaluate the quality, difference in the composition and comparison of Ber/Sidder (Zizyphus spp.) honey with other types of honey. The two samples of Ber honey and six other floral honey i.e., Citrus, mixed (citrus + Justicia), Acacia modesta, multi-flora and mixed (zizyphus + sesamum) were collected from Apis mellifera colonies. The colonies of Apis mellifera foraged on the above-mentioned flora in different ecological areas i.e. ber honey from Bannu and Karak, Citrus and mixed (citrus + Justicia) honey from Mandi Bahauddin, Acacia honey from Peshawar + Islamabad and multi-flora from Lahore. Nine legal parameters of honey quality control were followed. All honey samples were well within the limits of Codex Alimentarius Commission except ber and citrus. The ber honey showed high pH (6.85) and low reducing sugars (67.66%), sucrose (1.0%), free acidity (6.09 meq/kg) and total acidity (7.68 meq/kg). Mixed honey (zizyphus + sesamum) exhibited highest pH (6.88), lowest free acidity (2.80 meq/kg) and total acidity (5.50 meq/kg). Citrus honey was also found high in Hydroxy-methyl-furfural (HMF, 22.75 meql kg). (author)

  7. Italian and Italian American Identity: A Visual Approach | Krase ...

    African Journals Online (AJOL)

    This essay is a brief exploration of the related concepts of Italian Ethnicity and Italian Ethnic Identity via a Visual Sociological study of two geographically different venues — Italian American neighbourhoods in the United States and neighbourhoods in Rome, Italy. By studying the Vernacular Landscape (Jackson, 1984) via ...

  8. Honey and Apoptosis in Human Gastric Mucosa

    Directory of Open Access Journals (Sweden)

    Alireza Ostadrahimi

    2012-07-01

    Full Text Available Background: Gastric cancer is the fourth most common malignancy in the world. Honey is acomplex mixture of special biological active constituents. Honey possesses antioxidant and antitumorproperties. Nutritional studies have indicated that consumption of honey modulates therisk of developing gastric cancer. On the other hand, apoptosis has been reported to play a decisiverole in precancerous changes. Our chief study was conducted to assess the relationship betweenconsumption of honey and apoptosis in human gastric mucosa.Method: This cross-sectional study was conducted on 98 subjects over 18 years old, referred totwo hospitals in Tabriz, Iran. Subjects were undergone an upper gastrointestinal endoscopy, 62subjects were finally enrolled. Honey consumption was assessed by a Food Frequency Questionnaire(FFQ and apoptosis was detected by TUNEL technique. We tested polynomial curve tofind the best fit between honey consumption and apoptosis.Results: A positive relation between honey consumption and apoptosis was found (P=0.024.Our results indicated that the final and the best fit curve was: apoptosis = 1.714+1.648(honeyamount - 0.533(honey amount2 +1.833×10-5(honey amount7.Conclusion: Honey consumption had positive effects on gastric cancer by inducing apoptosis ingastric mucosa.

  9. CROATIAN HONEY MARKET IN EUROPEAN ENVIRONMENT

    Directory of Open Access Journals (Sweden)

    Dragana Dukić

    2004-06-01

    Full Text Available This examination is based on comparison of honey production, in countries of European Union, transition countries and The Republic of Croatia. The situation in Croatia is shown with all information about honey production. All data are compared with already managed European countries. In comparison with registrated number of beekeepers and hives, Croatia belongs to transition countries with the smallest number of beekepers and hives. On the other hand, values, such as, number of hives per beekeper and average honey production by hive, classify Croatia ahead of transition countries. There are very few professional beekepers in Croatia, as well as in other transition countries, but not countries of The European Union. Honey production in Croatia has been increasing last seven years and in the last few it increased more than 50%. Export of honey in the last 2 years is half of the complete honey production, which accomplish conditions for export enlargement. At the same time, import of honey is considerable reduced. Conditions for export can be better with production of biological clean honey (eco-honey, since Croatia has great resources for it. Also, cost of Croatian honey on the foreign market, will be considerable higher.

  10. The Italian LPG market

    International Nuclear Information System (INIS)

    Anon.

    1998-01-01

    As happened in other European countries, the Italian LPG consumption market narrowed in 1997 for climatic reasons. Still, with some 3,5 million tones it is the first LPG market in Europe thanks to automotive LPG which represents some 1,2 million tones, for 1,4 million tones for the bulk and 760, 000 tonnes for bottled products. Another characteristic of the Italian market: demand is slightly lowering in the North while increasing in the South and in the large islands. (author)

  11. Comparative Flight Activities and Pathogen Load of Two Stocks of Honey Bees Reared in Gamma-Irradiated Combs

    Directory of Open Access Journals (Sweden)

    Lilia I. de Guzman

    2017-11-01

    Full Text Available Gamma irradiation is known to inactivate various pathogens that negatively affect honey bee health. Bee pathogens, such as Deformed wing virus (DWV and Nosema spp., have a deleterious impact on foraging activities and bee survival, and have been detected in combs. In this study, we assessed the effects of gamma irradiation on the flight activities, pathogen load, and survival of two honey bee stocks that were reared in irradiated and non-irradiated combs. Overall, bee genotype influenced the average number of daily flights, the total number of foraging flights, and total flight duration, in which the Russian honey bees outperformed the Italian honey bees. Exposing combs to gamma irradiation only affected the age at first flight, with worker bees that were reared in non-irradiated combs foraging prematurely compared to those reared in irradiated combs. Precocious foraging may be associated with the higher levels of DWV in bees reared in non-irradiated combs and also with the lower amount of pollen stores in colonies that used non-irradiated combs. These data suggest that gamma irradiation of combs can help minimize the negative impact of DWV in honey bees. Since colonies with irradiated combs stored more pollen than those with non-irradiated combs, crop pollination efficiency may be further improved when mite-resistant stocks are used, since they performed more flights and had longer flight durations.

  12. International Comparison of the Export Competitiveness of Chinese Honey

    OpenAIRE

    Ma, Lunjiao

    2009-01-01

    Honey production and trade in the world are introduced. Total output of honey shows an increasing trend while the output of Chinese honey always ranks the first in the world. China, Argentina, Mexico are the major exporters of honey. In the year 2006, honey exports of China, Argentina and Mexico occupy 49.9% of the world's total export volume. International competitiveness of the three honey export countries are calculated, compared and analyzed by adopting the indices such as export price, i...

  13. Apologizing in Italian and English.

    Science.gov (United States)

    Lipson, Maxine

    1994-01-01

    Compared apology exchanges in Italy and the United States by having 10 Italian university students view American situation comedy television programs and rewrite particular conflict and apology exchanges in an Italian context. The status and role of the programs' participants affected the Italian students' choice of apology strategies more so than…

  14. Italian in the Modern World.

    Science.gov (United States)

    Adorno, Elvira, Ed.

    This booklet of 15 reprinted letters sent in response to a query concerning the actual use of Italian in the United States designates various areas of professional application. Some reference to current Italian publications is included. It is hoped that these letters will help promote the study of Italian in American schools. (RL)

  15. Tuning Nursing Educational in an Italian academic context.

    Science.gov (United States)

    Marchetti, Anna; Venturini, Giulia; Virgolesi, Michele; Gobbi, Mary; Rocco, Gennaro; Pulimeno, Ausilia Maria Lucia; Stievano, Alessandro; Piredda, Michela; De Marinis, Maria Grazia

    2015-09-01

    The European Union Bologna Process has laid the foundation for a common European competence-based educational framework. In many countries, nursing education is in transition from vocational to higher education, with many diverse systems. The competence-based approach provided by the project Tuning Educational Structures offers a common and coherent framework able to facilitate the implementation of the principles underpinning the Bologna Process reform. This study aimed to ascertain the relevance that Italian nursing university lecturers attributed to the 40 competences of the Italian version of the nursing Bachelor's and Master's Degrees. These competences were developed through adoption of the Tuning Methodology in the nursing context. The study was conducted in the 4 universities of one region of Italy which offer nursing Bachelor's and Master's Degrees. A total of 164 Italian university nursing lecturers. Using a four point scale, a cross sectional survey was conducted from March 2011 to April 2012. Participants evaluated each competence according to its relevance for Bachelor's or Master's Education. Frequency analysis was conducted. The significance for each competence of Tuning was rated very high by Italian lecturers and appeared to overlap partially with the original European study. In Italy, the most relevant competences for Bachelor's Degree were the skills associated with the use of appropriate interventions, activities and skills in nursing and the skills associated with nursing practice and clinical decision-making. For Master's Degree, leadership, management and team competences were the most important. The Tuning Nursing Project was accepted by the Italian lecturers. The competence-based approach was considered by Italian lectures as a support enabling to reflect on the current Italian nursing education cycles of study and to ensure shared visions and common approaches between Italian and European lecturers. Copyright © 2015 Elsevier Ltd. All

  16. Microbiological decontamination of natural honey by irradiation

    Science.gov (United States)

    Migdał, W.; Owczarczyk, H. B.; K ȩdzia, B.; Hołderna-K ȩdzia, E.; Madajczyk, D.

    2000-03-01

    Degree of microbiological decontamination, organoleptic and physico-chemical properties of natural honeys were investigated after radiation treatment. Seven kinds of honeys were irradiated with the beams of 10 MeV electrons from a 10 kW linear accelerator "Elektronika 10-10" at the dose 10 kGy. It was shown, that after irradiation, the total count of aerobic and anaerobic bacteria and moulds decrease by 99%. The antibiotic value in investigated honeys increased in turn from 1.67 to 2.67 after irradiation. Such factors and parameters of investigated honeys as their consistency, content of water and saccharose, acidity, the diastase and 5-HMF values were not changed significantly after irradiation. Decontamination by irradiation is a process which allows us to obtain high microbiological purity of honeys. It is especially needed, when honeys are used in surgical treatment of injuries and in nutrition of babies with food deficiency.

  17. Microbiological decontamination of natural honey by irradiation

    Energy Technology Data Exchange (ETDEWEB)

    Migdal, W.; Owczarczyk, H.B.; Kedzia, B.; Holderna-Kedzia, E.; Madajczyk, D

    2000-03-01

    Degree of microbiological decontamination, organoleptic and physico-chemical properties of natural honeys were investigated after radiation treatment. Seven kinds of honeys were irradiated with the beams of 10 MeV electrons from a 10 kW linear accelerator ''Elektronika 10-10'' at the dose 10 kGy. It was shown, that after irradiation, the total count of aerobic and anaerobic bacteria and moulds decrease by 99%. The antibiotic value in investigated honeys increased in turn from 1.67 to 2.67 after irradiation. Such factors and parameters of investigated honeys as their consistency, content of water and saccharose, acidity, the diastase and 5-HMF values were not changed significantly after irradiation. Decontamination by irradiation is a process which allows us to obtain high microbiological purity of honeys. It is especially needed, when honeys are used in surgical treatment of injuries and in nutrition of babies with food deficiency.

  18. The Benefits of Honey in Holy Quran

    Directory of Open Access Journals (Sweden)

    Abbasali Purbafrani

    2014-09-01

    Full Text Available Honey contains a wide variety of vitamins, minerals, amino acids and antioxidants. The vitamins found in honey include niacin, riboflavin and pantothenic acid; minerals present include calcium, copper, iron, magnesium, manganese, phosphorus, potassium and zinc. In addition honey contains a variety of flavonoids and phenolic acids which act as antioxidants, scavenging and eliminating free radicals. Honey has had a long history in human consumption, and is used in various foods and beverages as a sweetener and flavoring. It also has a role in religion and symbolism. Medicinal importance of honey has been documented in the world's oldest medical literatures, and since the ancient times, it has been known to possess antimicrobial property as well as wound-healing activity. More than 1,400 years ago, honey is described as a source of healing in the Quran and it is also mentioned as one of the foods of Paradise.

  19. Microbiological decontamination of natural honey by irradiation

    International Nuclear Information System (INIS)

    Migdal, W.; Owczarczyk, H.B.; Kedzia, B.; Holderna-Kedzia, E.; Madajczyk, D.

    2000-01-01

    Degree of microbiological decontamination, organoleptic and physico-chemical properties of natural honeys were investigated after radiation treatment. Seven kinds of honeys were irradiated with the beams of 10 MeV electrons from a 10 kW linear accelerator ''Elektronika 10-10'' at the dose 10 kGy. It was shown, that after irradiation, the total count of aerobic and anaerobic bacteria and moulds decrease by 99%. The antibiotic value in investigated honeys increased in turn from 1.67 to 2.67 after irradiation. Such factors and parameters of investigated honeys as their consistency, content of water and saccharose, acidity, the diastase and 5-HMF values were not changed significantly after irradiation. Decontamination by irradiation is a process which allows us to obtain high microbiological purity of honeys. It is especially needed, when honeys are used in surgical treatment of injuries and in nutrition of babies with food deficiency

  20. The Italian gas market

    International Nuclear Information System (INIS)

    Ferrari, A.

    2004-01-01

    The first meeting of the French gas association (AFG) of the year 2004 was devoted to the Italian gas market. Two experts of this market were invited: A. Ferrari, general director of the Italian gas and electricity regulation authority, and D. Dispenza, vice-general director of Eni Division Gas and Power. This conference was the occasion to compare the French and Italian gas industries. France and Italy have a border in common and also a series of common structural characteristics: the dependence with respect to foreign supplies, the position of the public company, the sensitiveness with respect to the security of supplies, to the role of storage and to the public utility. The French and Italian decisions are inter-dependent. The liberalization taking place with an unpredictable rate, it is necessary for the gas industry to anticipate its effects. When the political, legal and regulatory decisions are enforced, the initiative comes back to the hands of the industry. In this context, the trend of the transfrontier industries becomes particularly important for the regulatory authority. (J.S.)

  1. Italian energy policy

    International Nuclear Information System (INIS)

    1988-01-01

    This document discusses problems associated with Italian energy policy; economic and industrial development as it relates to that policy is covered. Specific areas covered are: (1) the basis of Italy's new energy policy; (2) energy demand; (3) five objectives; (4) the electrical power system; (5) proposed action; and (6) energy resources

  2. Italian Society of Physics

    International Nuclear Information System (INIS)

    Anon.

    1987-01-01

    The abstracts of most of the papers read at the 53 National Congress of the Italian Society of Physics are presented. The Congress developed in ten sessions: high energy and elementary particle physics, physics of nuclei, condensed matter, quantum electronics, cosmic physics, geophysics, general physics, electronics and applied physics, health physics and hystory of physics. An author index is also included

  3. Detection of honey adulteration using HPLC method

    Directory of Open Access Journals (Sweden)

    Olga Cwiková

    2015-10-01

    We have further assessed whether honey samples comply with legislative requirements relating to this product or consumer misleading practices take place. Our analysed samples often lacked indication whether it is a floral honey or honeydew honey; this information was missing in eight out of 21 samples. Samples 5 and 9 did not mention the name of manufacturer. Sample 10 did not mention the country of origin.

  4. Preparation of honey sample for tritium monitoring

    International Nuclear Information System (INIS)

    Chen Bingru; Wang Chenlian; Wang Weihua

    1989-01-01

    The method of preparation of honey sample for tritium monitoring was described. The equipments consist of an air and honey supply system, a quartz combustor with CM-type monolithic combustion catalyst and a condensation system. In the equipments, honey sample was converted into cooling water by the distilling, cracking and carbonizing procedures for tritium counting. The recovery ratio is 99.0 ± 4.5 percent for tritiated water and 96.0 ± 2.0 for tritiated organic compounds. It is a feasible preparing method for the total tritium monitoring in honey sample

  5. Special Issue: Honey Bee Viruses

    Directory of Open Access Journals (Sweden)

    Sebastian Gisder

    2015-10-01

    Full Text Available Pollination of flowering plants is an important ecosystem service provided by wild insect pollinators and managed honey bees. Hence, losses and declines of pollinating insect species threaten human food security and are of major concern not only for apiculture or agriculture but for human society in general. Honey bee colony losses and bumblebee declines have attracted intensive research interest over the last decade and although the problem is far from being solved we now know that viruses are among the key players of many of these bee losses and bumblebee declines. With this special issue on bee viruses we, therefore, aimed to collect high quality original papers reflecting the current state of bee virus research. To this end, we focused on newly discovered viruses (Lake Sinai viruses, bee macula-like virus, or a so far neglected virus species (Apis mellifera filamentous virus, and cutting edge technologies (mass spectrometry, RNAi approach applied in the field.

  6. Special Issue: Honey Bee Viruses

    Science.gov (United States)

    Gisder, Sebastian; Genersch, Elke

    2015-01-01

    Pollination of flowering plants is an important ecosystem service provided by wild insect pollinators and managed honey bees. Hence, losses and declines of pollinating insect species threaten human food security and are of major concern not only for apiculture or agriculture but for human society in general. Honey bee colony losses and bumblebee declines have attracted intensive research interest over the last decade and although the problem is far from being solved we now know that viruses are among the key players of many of these bee losses and bumblebee declines. With this special issue on bee viruses we, therefore, aimed to collect high quality original papers reflecting the current state of bee virus research. To this end, we focused on newly discovered viruses (Lake Sinai viruses, bee macula-like virus), or a so far neglected virus species (Apis mellifera filamentous virus), and cutting edge technologies (mass spectrometry, RNAi approach) applied in the field. PMID:26702462

  7. Electricity : Italian style

    International Nuclear Information System (INIS)

    Murray, L.

    2007-01-01

    Italy's electricity system was described. Italy relies on outside sources for between 10 and 15 per cent of its electricity supply. Most Italians use gas, wood stoves and fossil fuels, and are conservative about lighting. Electricity costs more in Italy than in any other European country. Italy made the decision to decommission its nuclear power stations after Chernobyl. In 2005, Italy's largest utility group signed a memorandum of understanding ensuring that they would contract energy from France's nuclear reactors. Italy is now financing and managing projects in Russia and eastern Europe, and has strengthened its ties in Spain and the Netherlands. Although Italy is intent on producing its own power, the perceptions of health hazards from electricity towers cause citizens to strongly protest new installations. It was concluded that rising energy prices may force Italians to reconsider the use of alternative energy sources. 3 figs

  8. Comparing the quality of honey from beekeepers and honey from the market chain

    Directory of Open Access Journals (Sweden)

    Milena Bušová

    Full Text Available Honey is a valuable food for its beneficial nutritional and dietetic effects. The quality of honey fluctuates considerably according to various criteria, the adulteration of honey with cheaper substitutes is not negligible. The quality of honey in the market chain with honey taken from beekeepers was compared in this study. A total of 10 samples from each group were tested for basic qualitative markers and compared with legislative criteria. The samples were analysed for fructose and glucose content, water content, titratable acidity and two tests for illegal sugar additions. The results revealed the addition of 25% of the technical syrup in one sample of honey from the market chain, one sample had the sum of fructose and glucose 56,3%, it is below the required limit 60% (differed by 6,3%. In other parameters the samples complied with the valid legislation. All tested parameters in honey from beekeepers met the criteria of the legislation, only 1 sample of blossom honey had the sum of fructose and glucose just below the required limit. The sum of fructose and glucose in this sample was 58.3 %, it differed by 2.9% from the required content of 60%. Sensory analysis was used to assess four samples of honey from beekeepers collected by different techniques. Results have not shown significant difference in sensory properties between manually pressed honey and honey obtained after whirling. The responses characterizing the favourable sensory properties of the examined honey samples were prevailing. The difference between the perception of honey after whirling and honey harvested by press manually was not demonstrated in sensory properties.

  9. Determinants of result-based control in Italian agencies

    OpenAIRE

    Barbieri, Dario; Fedele, Paolo; Galli, Davide; Ongaro, Edoardo

    2010-01-01

    Explaining the form of public sector organizations is a major contribution that organizational theory has to offer to the study of the public sector. In this chapter, we investigate the characteristics of the relationships between agencies and their parent administration in the Italian central government. The study, rooted in organizational theory, adopts different theoretical angles, at first a ‘cultural-normative’ approach mainly embedded in a logic of appropriateness perspective (March an...

  10. IMPACT OF HONEY DRESSING IN CHRONIC ULCER

    Directory of Open Access Journals (Sweden)

    Santhosh Kumar S. S

    2018-01-01

    Full Text Available BACKGROUND This was an open label study. Although, honey has been used for centuries in wound care, now only it is being integrated into modern medical practice. The resurgence of interest in honey as a medicine for modern wound dressing offers opportunities for both patients and clinicians. The aim of this study is to show the advantage of honey dressing over conventional saline dressing in the management of chronic non-healing ulcer. This property of honey is mentioned in papyruses traced to 3500 years ago among ancient Egyptians and the Hebrews 3000 years ago. Honey naturally contains small amounts of enzymes. The predominant enzymes in honey are diastase (amylase, invertase (alpha-glucosidase and glucose oxidase. Honey has been proven to have significant antibacterial properties and is a useful constituent in wound and burn care. The stimulation of cell growth seen with honey is probably also responsible for ‘kick-starting’ the healing process in chronic wounds that have remained non-healing for long periods. Honey has a broad spectrum of activity against bacteria and fungi. Many randomised and non-randomised study has shown the efficacy of honey as a healing agent and excellent dressing material. MATERIALS AND METHODS Study was conducted in medical college, Trivandrum, which is a tertiary care centre. Patients are selected from orthopaedic and general surgical wards. The study period was one year extending from July 2014 to June 2015. Saline dressing was given for the patients admitted in the first 6 months of study. Honey dressing was given for the next 6 months of study. Outcome was assessed on duration of hospital stay, difference of outcome in different distribution of grades of ulcer, difference of outcome in patients with vascular compromise, which is found out by Doppler ultrasound and difference of outcome in patients with diabetes mellitus. RESULTS Most significant observations made were in regard to duration of hospital stay

  11. 77 FR 72385 - Honey From China; Determination

    Science.gov (United States)

    2012-12-05

    ... INTERNATIONAL TRADE COMMISSION [Investigation No. 731-TA-893 (Second Review)] Honey From China... U.S.C. 1675(c)), that revocation of the antidumping duty order on honey from China would be likely to lead to continuation or recurrence of material injury to an industry in the United States within a...

  12. Physiology and biochemistry of honey bees

    Science.gov (United States)

    Despite their tremendous economic importance, honey bees are not a typical model system for studying general questions of insect physiology. This is primarily due to the fact that honey bees live in complex social settings which impact their physiological and biochemical characteristics. Not surpris...

  13. Cell culture techniques in honey bee research

    Science.gov (United States)

    Cell culture techniques are indispensable in most if not all life science disciplines to date. Wherever cell culture models are lacking scientific development is hampered. Unfortunately this has been and still is the case in honey bee research because permanent honey bee cell lines have not yet been...

  14. Comparative Study of Honey Consumption in Slovakia and Russia

    OpenAIRE

    Snezhanna Guziy; Peter Šedík; Elena Horská

    2017-01-01

    The current situation on the food market is influenced by various diet trends including eating healthy products. The honey consumption has an increasing tendency because more and more consumers consider honey as a healthy alternative to a refined sugar. The aim of this research paper was to identify consumption patterns regarding honey in terms of annual consumption, its frequency, volume of honey per purchase, consumption structure by family members and factors affecting consumers at honey p...

  15. The Italian decommissioning industry

    International Nuclear Information System (INIS)

    Adinolfi, R.

    2005-01-01

    Full text: Italy's step out from nuclear activities in 1987 deeply affected an industry that, in the previous years, had managed to grow up in quality and technology levels to meet the nuclear standards. Only a few companies were able to partially retain their skills through activities abroad. The decommissioning program represents a new challenge for the Italian industry at large and will require a consistent effort to properly qualify the potential suppliers. On the other side, a program with such implications in terms of investments and so depending from social aspects cannot be effectively implemented without a significant involvement of the local industry. Essential conditions for the success are a reliable program, as well as a careful supply management scheme, which must facilitate aggregation of skills spread among different subjects. 'Human Resources: Maintaining a Nuclear Culture in Italy' Bruno Panella Politecnico di Torino, Giuseppe Forasassi, Universita di Pisa, Inter-University Consortium for the Nuclear Technological Research (CIRTEN). After a brief history of the nuclear engineering education in Italy within the international and national nuclear energy scenario, the present situation, with reference to the Italian universities, is shown. In order to maintain a nuclear culture in Italy the solution, exploited with different peculiarities in each University, is to carry out high quality research activities in reciprocal collaboration (mostly within the CIRTEN inter university Consortium) as well as with the Industry and research Organisations and to collaborate actively in establishing a stable network and a synergy of teaching activities in Europe in the field of Nuclear Engineering Education. The aim is to maintain at a high level and as updated as possible the Italian educational offer in nuclear engineering and also to attract the best students for the enrolment. (author)

  16. Italian bioclimatic architecture

    Energy Technology Data Exchange (ETDEWEB)

    D' Errico, E

    1987-04-01

    This paper deals with the results of solar space heating research developed within the Finalized Energy Project of the National Research Council of Italy. Energy and cost/benefit parameters were compared for a certain number of Italian buildings incorporating solar architecture. The technical and economic analysis was performed on 31 buildings, of which 24 are residential, and 7 are schools, with different solar devices (direct gain, Trombe walls, sunspaces, hybrid systems). The buildings were constructed between 1976 and 1982. The results emphasize that simple technologies with lower costs and good design usually have a higher performance/cost ratio.

  17. Diet-dependent gene expression in honey bees: honey vs. sucrose or high fructose corn syrup.

    Science.gov (United States)

    Wheeler, Marsha M; Robinson, Gene E

    2014-07-17

    Severe declines in honey bee populations have made it imperative to understand key factors impacting honey bee health. Of major concern is nutrition, as malnutrition in honey bees is associated with immune system impairment and increased pesticide susceptibility. Beekeepers often feed high fructose corn syrup (HFCS) or sucrose after harvesting honey or during periods of nectar dearth. We report that, relative to honey, chronic feeding of either of these two alternative carbohydrate sources elicited hundreds of differences in gene expression in the fat body, a peripheral nutrient-sensing tissue analogous to vertebrate liver and adipose tissues. These expression differences included genes involved in protein metabolism and oxidation-reduction, including some involved in tyrosine and phenylalanine metabolism. Differences between HFCS and sucrose diets were much more subtle and included a few genes involved in carbohydrate and lipid metabolism. Our results suggest that bees receive nutritional components from honey that are not provided by alternative food sources widely used in apiculture.

  18. Longitudinal Effects of Supplemental Forage on the Honey Bee (Apis mellifera) Microbiota and Inter- and Intra-Colony Variability.

    Science.gov (United States)

    Rothman, Jason A; Carroll, Mark J; Meikle, William G; Anderson, Kirk E; McFrederick, Quinn S

    2018-02-03

    Honey bees (Apis mellifera) provide vital pollination services for a variety of agricultural crops around the world and are known to host a consistent core bacterial microbiome. This symbiotic microbial community is essential to many facets of bee health, including likely nutrient acquisition, disease prevention and optimal physiological function. Being that the bee microbiome is likely involved in the digestion of nutrients, we either provided or excluded honey bee colonies from supplemental floral forage before being used for almond pollination. We then used 16S rRNA gene sequencing to examine the effects of forage treatment on the bees' microbial gut communities over four months. In agreement with previous studies, we found that the honey bee gut microbiota is quite stable over time. Similarly, we compared the gut communities of bees from separate colonies and sisters sampled from within the same hive over four months. Surprisingly, we found that the gut microbial communities of individual sisters from the same colony can exhibit as much variation as bees from different colonies. Supplemental floral forage had a subtle effect on the composition of the microbiome during the month of March only, with strains of Gilliamella apicola, Lactobacillus, and Bartonella being less proportionally abundant in bees exposed to forage in the winter. Collectively, our findings show that there is unexpected longitudinal variation within the gut microbial communities of sister honey bees and that supplemental floral forage can subtly alter the microbiome of managed honey bees.

  19. Funding fears spark Italian protests

    CERN Multimedia

    Abbott, A

    2001-01-01

    150 Italian scientists took part in a symbolic funeral in Milan for Italian research. Scientists are worried that the new government will reduce support for basic research. Rumours that budgets will be cut are being confirmed and last week the government rejected the 3-year plan of the National Research Council, which had proposed an expansion of staff (1/2 page).

  20. Metatranscriptomic analyses of honey bee colonies.

    Science.gov (United States)

    Tozkar, Cansu Ö; Kence, Meral; Kence, Aykut; Huang, Qiang; Evans, Jay D

    2015-01-01

    Honey bees face numerous biotic threats from viruses to bacteria, fungi, protists, and mites. Here we describe a thorough analysis of microbes harbored by worker honey bees collected from field colonies in geographically distinct regions of Turkey. Turkey is one of the World's most important centers of apiculture, harboring five subspecies of Apis mellifera L., approximately 20% of the honey bee subspecies in the world. We use deep ILLUMINA-based RNA sequencing to capture RNA species for the honey bee and a sampling of all non-endogenous species carried by bees. After trimming and mapping these reads to the honey bee genome, approximately 10% of the sequences (9-10 million reads per library) remained. These were then mapped to a curated set of public sequences containing ca. Sixty megabase-pairs of sequence representing known microbial species associated with honey bees. Levels of key honey bee pathogens were confirmed using quantitative PCR screens. We contrast microbial matches across different sites in Turkey, showing new country recordings of Lake Sinai virus, two Spiroplasma bacterium species, symbionts Candidatus Schmidhempelia bombi, Frischella perrara, Snodgrassella alvi, Gilliamella apicola, Lactobacillus spp.), neogregarines, and a trypanosome species. By using metagenomic analysis, this study also reveals deep molecular evidence for the presence of bacterial pathogens (Melissococcus plutonius, Paenibacillus larvae), Varroa destructor-1 virus, Sacbrood virus, and fungi. Despite this effort we did not detect KBV, SBPV, Tobacco ringspot virus, VdMLV (Varroa Macula like virus), Acarapis spp., Tropilaeleps spp. and Apocephalus (phorid fly). We discuss possible impacts of management practices and honey bee subspecies on microbial retinues. The described workflow and curated microbial database will be generally useful for microbial surveys of healthy and declining honey bees.

  1. Visit of the Italian President

    CERN Multimedia

    2003-01-01

    "CERN stands as the demonstration of the great results that science can achieve [...] when it succeeds in getting all the main players in international scientific cooperation involved," stated the President of the Italian Republic, Carlo Azeglio Ciampi, in front of an overcrowded and enthusiastic Main Auditorium. The President visited CERN on 2nd December, and met the CERN directorate as well as the Italians at CERN. With about 1500 Italians working at CERN, which is one sixth of the total personnel, they are the second largest nationality at CERN. The Italian President visited the CMS assembly hall and the LHC superconducting magnet test hall before meeting the CERN community, in particular Italian personnel, in the main auditorium. There he emphasised the role of CERN as a transnational model for research which not only achieved great results in science but is also a powerful vehicle for progress in other fields. President Ciampi visits the LHC superconducting test hall together with Luciano Maiani and Lu...

  2. Italians and Foreign Immigration

    Directory of Open Access Journals (Sweden)

    Corrado Bonifazi

    2006-01-01

    Full Text Available Opinion surveys on attitudes towards immigration are becoming more and more important, owing to the increasing role of political debate on migration issues in Western European countries. CNR has conducted four surveys on this topic, collecting data on the evolution of Italians attitudes towards migration issues. In fact, the ? rst survey was conducted in the second half of the eighties, when foreign immigration was in its early stages. The last survey took place in 2002, when immigration was already well established in Italy. The article focuses on three main issues: the global impact of immigration on Italian society, the immigrants role in the labour market, and immigration policy. In general, the results of the last survey con? rm a trend that appeared already in 1997, of more balanced and realistic opinion that were less of a response to circumstances perceived as special emergencies. Highly educated people, teachers and students continue to be the most open and receptive groups, whereas the less favourably inclined and more worried continue to be old people, those with less education, the unemployed, housewives, and retirees.

  3. From Flower to Honey Bouquet: Possible Markers for the Botanical Origin of Robinia Honey

    Directory of Open Access Journals (Sweden)

    Giovanna Aronne

    2014-01-01

    Full Text Available Flowers are complex structures devoted to pollinator attraction, through visual as well as chemical signals. As bees collect nectar on flowers to produce honey, some aspects of floral chemistry are transferred to honey, making chemical markers an important technique to identify the botanical and geographical origins of honey. We applied a new approach that considers the simultaneous analysis of different floral parts (petals, stamens + pistils, calyxes + nectarines, and nectar and the corresponding unifloral honey. We collected fresh flowers of Robinia pseudoacacia L. (black locust, selected five samples of Robinia honey from different geographical origins, applied SPME-GC/MS for volatile analyses, and defined the chemical contribution added by different floral parts to the honey final bouquet. Our results show that honey blends products from nectar as well as other flower parts. Comparing honey and flower profiles, we detected compounds coming directly from flower parts but not present in the nectar, such as hotrienol and β-pinene. These may turn out to be of special interest when selecting floral markers for the botanical origin of honey.

  4. From flower to honey bouquet: possible markers for the botanical origin of Robinia honey.

    Science.gov (United States)

    Aronne, Giovanna; Giovanetti, Manuela; Sacchi, Raffaele; De Micco, Veronica

    2014-01-01

    Flowers are complex structures devoted to pollinator attraction, through visual as well as chemical signals. As bees collect nectar on flowers to produce honey, some aspects of floral chemistry are transferred to honey, making chemical markers an important technique to identify the botanical and geographical origins of honey. We applied a new approach that considers the simultaneous analysis of different floral parts (petals, stamens + pistils, calyxes + nectarines, and nectar) and the corresponding unifloral honey. We collected fresh flowers of Robinia pseudoacacia L. (black locust), selected five samples of Robinia honey from different geographical origins, applied SPME-GC/MS for volatile analyses, and defined the chemical contribution added by different floral parts to the honey final bouquet. Our results show that honey blends products from nectar as well as other flower parts. Comparing honey and flower profiles, we detected compounds coming directly from flower parts but not present in the nectar, such as hotrienol and β-pinene. These may turn out to be of special interest when selecting floral markers for the botanical origin of honey.

  5. Antifungal activity of selected Malaysian honeys: a comparison with Manuka honey

    Directory of Open Access Journals (Sweden)

    Siti Aisyah Sayadi

    2015-07-01

    Full Text Available Objective: To evaluate four selected Malaysian honey samples from different floral sources (Gelam, Tualang, Nenas and Acacia for their ability to inhibit the growth of fungi and yeast strains (Candida albicans, Aspergillus niger, Epidermophyton floccosum, Microsporum gypseum, Trichophyton rubrum and Trichophyton mentagrophytes. Methods: The broth microdilution method was used to assess the antifungal activity of honey against yeasts at different concentrations ranging from 0.01% to 70% (v/v. Minimum inhibitory concentration (MIC of the honeys were determined by visual inspection and spectrophotometric assay. Minimum fungicidal concentration test was performed by further sub-culturing from the plates which showed no visible growth in the MIC assay onto Sabroud dextrose agar. Results: All tested Malaysian honeys except Gelam showed antifungal activity against all species analysed, with the MIC ranging from 25% (v/v to 50% (v/v while MIC of Manuka honey ranged between 21% to 53% (v/v. Candida albicans was more susceptible to honey than other species tested. Conclusions: Locally produced honeys exhibited antifungal activity which is less than or equal to that of Manuka honey. Our data showed evidence in support of the therapeutic uses of Malaysian honeys.

  6. Antiviral Defense Mechanisms in Honey Bees

    Science.gov (United States)

    Brutscher, Laura M.; Daughenbaugh, Katie F.; Flenniken, Michelle L.

    2015-01-01

    Honey bees are significant pollinators of agricultural crops and other important plant species. High annual losses of honey bee colonies in North America and in some parts of Europe have profound ecological and economic implications. Colony losses have been attributed to multiple factors including RNA viruses, thus understanding bee antiviral defense mechanisms may result in the development of strategies that mitigate colony losses. Honey bee antiviral defense mechanisms include RNA-interference, pathogen-associated molecular pattern (PAMP) triggered signal transduction cascades, and reactive oxygen species generation. However, the relative importance of these and other pathways is largely uncharacterized. Herein we review the current understanding of honey bee antiviral defense mechanisms and suggest important avenues for future investigation. PMID:26273564

  7. Proceedings "… Towards Resilient Honey Bees …"

    NARCIS (Netherlands)

    Dooremalen, van C.A.; Zweep, A.

    2015-01-01

    The Research Roadmap is a co-creation by Bees@wur and the Dutch government, and the (inter)national researchers participating in the workshop Resilient Honey bees 23-24 November 2015, Castle Hoekelum, Bennekom, The Netherlands

  8. Research on an antioxidant capacity of honeys

    Directory of Open Access Journals (Sweden)

    Elżbieta Hołderna-Kędzia

    2012-12-01

    Full Text Available Human organism is exposed to harmful action of free radicals which are produced as well endogenically as egzogenically. The oxidation activity of free radicals can lead to the conversion of systemic biomolecules. As a consequence, there is a threat of, many severe diseases. Antioxidative agents which occur in natural products (also in honey raise a possibility of protection against the harmful action of above mentioned radicals. Polyphenolic compounds - flavonoids, phenolic acids and ascorbic acid - are the most important antioxidative agents. The research of many authors proves that honey, given orally, shows an antioxidative activity. The level of antioxidative agents in serum after the consumption of honey is high and surpasses the antioxidative activity of tea. Dark honeys (honeydew and heather have considerably higher antioxidative activity in comparison to light ones (acacia, lime, polyfloral.

  9. MICROBIAL QUALITY OF HONEY MIXTURE WITH POLLEN

    Directory of Open Access Journals (Sweden)

    Ján Mareček

    2011-02-01

    Full Text Available Normal 0 21 MicrosoftInternetExplorer4 The aim of this study was evaluation of microbial quality in raw materials (honey, pollen and evaluation of microbial quality in honey mixture with pollen (2.91 % and 3.85 % and also dynamics of microbial groups in honey mixtures with pollen after 14 days storage at the room temperature (approximately 25 °C and in cold store (8 °C. We used dilution plating method for testing of samples. Detections of total plate microbial count (aerobic and anaerobic microorganisms, sporulating bacteria, coliform bacteria, Bifidobacterium sp., Lactobacillus sp. and microscopic fungi were performed. In general, counts of microorganisms decreased in honey mixture with pollen compared to raw pollen and these counts increased compared to natural honey. Total plate count was 5.37 log KTJ.g-1 in pollen; 1.36 log KTJ.g-1 in honey; 2.97 log KTJ.g-1 in honey mixture with 2.91 % pollen and 2.04 log KTJ.g-1 in honey mixture with 3.85 % pollen. Coliform bacteria were detected in pollen (1.77 log KTJ.g-1. Then, we found coliform bacteria in one sample of honey mixtures with pollen (2.91 % - 1.00 log KTJ.g-1.Bifidobacterium species were detected only in raw pollen. We did not findLactobacillus sp. in any of the samples. Microscopic fungi were detected on two cultivating media. Yeasts were present in pollen sample (average 5.39 log KTJ.g-1, honey mixture with 2.91 % pollen (average 2.51 log KTJ.g-1 and honey mixture with 3.85 % pollen (average 1.58 log KTJ.g-1. Filamentous microscopic fungi were detectable in pollen (average 3.38 log KTJ.g-1, in honey (only on one medium: 1.00 log KTJ.g-1, in honey mixture with 2.91 % pollen (average 1.15 log KTJ.g-1 and in honey mixture with 3.85 % pollen (1.71 %. Raw pollen contained microscopic fungi as Absidiasp., Mucor sp., Alternaria sp. andEmericella nidulans. Honey mixture with 2.91 % pollen after storage (14 days contained lower microbial counts when compared with the sample

  10. An Xrootd Italian Federation

    International Nuclear Information System (INIS)

    Boccali, T; Mazzoni, E; Donvito, G; Diacono, D; Marzulli, G; Pompili, A; Ricca, G Della; Argiro, S; Gregori, D; Grandi, C; Bonacorsi, D; Lista, L; Fabozzi, F; Barone, L M; Santocchia, A; Riahi, H; Tricomi, A; Sgaravatto, M; Maron, G

    2014-01-01

    The Italian community in CMS has built a geographically distributed network in which all the data stored in the Italian region are available to all the users for their everyday work. This activity involves at different level all the CMS centers: the Tier1 at CNAF, all the four Tier2s (Bari, Rome, Legnaro and Pisa), and few Tier3s (Trieste, Perugia, Torino, Catania, Napoli, ...). The federation uses the new network connections as provided by GARR, our NREN (National Research and Education Network), which provides a minimum of 10 Gbit/s to all the sites via the GARR-X[2] project. The federation is currently based on Xrootd[1] technology, and on a Redirector aimed to seamlessly connect all the sites, giving the logical view of a single entity. A special configuration has been put in place for the Tier1, CNAF, where ad-hoc Xrootd changes have been implemented in order to protect the tape system from excessive stress, by not allowing WAN connections to access tape only files, on a file-by-file basis. In order to improve the overall performance while reading files, both in terms of bandwidth and latency, a hierarchy of xrootd redirectors has been implemented. The solution implemented provides a dedicated Redirector where all the INFN sites are registered, without considering their status (T1, T2, or T3 sites). An interesting use case were able to cover via the federation are disk-less Tier3s. The caching solution allows to operate a local storage with minimal human intervention: transfers are automatically done on a single file basis, and the cache is maintained operational by automatic removal of old files.

  11. An Xrootd Italian Federation

    Science.gov (United States)

    Boccali, T.; Donvito, G.; Diacono, D.; Marzulli, G.; Pompili, A.; Della Ricca, G.; Mazzoni, E.; Argiro, S.; Gregori, D.; Grandi, C.; Bonacorsi, D.; Lista, L.; Fabozzi, F.; Barone, L. M.; Santocchia, A.; Riahi, H.; Tricomi, A.; Sgaravatto, M.; Maron, G.

    2014-06-01

    The Italian community in CMS has built a geographically distributed network in which all the data stored in the Italian region are available to all the users for their everyday work. This activity involves at different level all the CMS centers: the Tier1 at CNAF, all the four Tier2s (Bari, Rome, Legnaro and Pisa), and few Tier3s (Trieste, Perugia, Torino, Catania, Napoli, ...). The federation uses the new network connections as provided by GARR, our NREN (National Research and Education Network), which provides a minimum of 10 Gbit/s to all the sites via the GARR-X[2] project. The federation is currently based on Xrootd[1] technology, and on a Redirector aimed to seamlessly connect all the sites, giving the logical view of a single entity. A special configuration has been put in place for the Tier1, CNAF, where ad-hoc Xrootd changes have been implemented in order to protect the tape system from excessive stress, by not allowing WAN connections to access tape only files, on a file-by-file basis. In order to improve the overall performance while reading files, both in terms of bandwidth and latency, a hierarchy of xrootd redirectors has been implemented. The solution implemented provides a dedicated Redirector where all the INFN sites are registered, without considering their status (T1, T2, or T3 sites). An interesting use case were able to cover via the federation are disk-less Tier3s. The caching solution allows to operate a local storage with minimal human intervention: transfers are automatically done on a single file basis, and the cache is maintained operational by automatic removal of old files.

  12. Contaminant bacteria in traditional-packed honey

    Directory of Open Access Journals (Sweden)

    Hening Tjaturina Pramesti

    2007-03-01

    Full Text Available Honey may be contaminated by microorganisms during its harvesting, processing, and packaging. Honey selected for clinical purposes must safe, sterile, and contain antimicrobial activity, so it must be evaluated using laboratory testing. The aim of this descriptive laboratory study was to isolate and identify the bacterial contaminant in the traditional-packed honey dealing with the use of honey for medical purposes. the colony forming units of honey sample cultured on blood agar were counted using Stuart bacterial colony counter. The suspected bacterial colonies were isolated and identified based on cultural morphology characteristics. The isolates of suspected bacterial colonies were stained according to Gram and Klein method and then were examined by the biochemical reaction. The results showed that there were two contaminant bacteria. Gram-positive cocci which were presumptively identified as coagulase-negative Staphylococci and gram-positive rods which were presumptively identified as Bacillus subtilis. In conclusion, the contaminant bacteria were regarded as low pathogen bacteria. The subtilin enzyme of B subtilis may cause an allergic reaction and coagulase-negative Staphylococci, Staphylococcus epidermidis is also an opportunist pathogen. Inevitably, for medical purposes, traditional-packed honey must be well filtered, water content above 18%, and standardized sterilization without loss of an antibacterial activity or change in properties.

  13. Viper's bugloss (Echium spp. honey typing and establishing the pollen threshold for monofloral honey.

    Directory of Open Access Journals (Sweden)

    Tomás Martín Arroyo

    Full Text Available Honey samples (n = 126 from Castilla-La Mancha (Central Spain were characterized based on their physicochemical properties and a melissopalynological analysis. The latter showed that Echium pollen type was the dominant palynomorph in most samples, representing at least 30% of the pollen in each sample. As anticipated, a relationship was observed between the proportion of this pollen and the properties of the honey. One goal of this study was to set a threshold that defines the percentage of pollen necessary for Viper's bugloss honey to be considered monofloral or multifloral. This is a mandatory requirement in light of the publication of the European Directive 2014/63/EU establishing the regulations governing the labelling and control of honey to eradicate fraud (BOE n° 147, June 2015. By analyzing how the proportions of Echium pollen type affected the physicochemical and sensory parameters of the honey, the honeys analyzed could be segregated into multifloral and monofloral honeys. The data indicates that the proportion of pollen necessary to discriminate monofloral Viper's bugloss honey lies at 70%.

  14. Heritabilities and genetic correlations for honey yield, gentleness, calmness and swarming behaviour in Austrian honey bees

    NARCIS (Netherlands)

    Brascamp, Evert; Willam, Alfons; Boigenzahn, Christian; Bijma, Piter; Veerkamp, Roel F.

    2016-01-01

    Heritabilities and genetic correlations were estimated for honey yield and behavioural traits in Austrian honey bees using data on nearly 15,000 colonies of the bee breeders association Biene Österreich collected between 1995 and 2014. The statistical models used distinguished between the genetic

  15. The allergic march

    African Journals Online (AJOL)

    allergic rhinitis (Fig. 1). Several studies have demonstrated the allergic march from atopic ... Boys appear to be at greater risk of developing the typical progression of allergic .... childhood asthma: lessons from the German. Multicentre Study ...

  16. Market bulletin - March 1989

    International Nuclear Information System (INIS)

    1989-01-01

    This bulletin deals with the brazilian electric power consumption in March 1989, containing data about the total consumption, the growth rates, the special tariffs, and the monthly evolution in each brazilian region. (C.G.C.)

  17. Market bulletin - March 1991

    International Nuclear Information System (INIS)

    1991-01-01

    This bulletin deals with the brazilian electric power consumption in March 1991, containing data about the total consumption, the growth rates, the special tariffs, and the monthly evolution in each brazilian region. (C.G.C.)

  18. Market bulletin - March 1990

    International Nuclear Information System (INIS)

    1990-01-01

    This bulletin deals with the brazilian electric power consumption in March 1990, containing data about the total consumption, the growth rates, the special tariffs, and the monthly evolution in each brazilian region. (C.G.C.)

  19. The II Italian Corps Deployment on the Western Front during the First World War (April 1918-May 1919)

    Science.gov (United States)

    2015-06-12

    experience of the Italian Armed Forces. In the last two centuries, significant origins of wars fought with allies are: 1. Common enemies, as with the Italian...result of the Paris conference in December 1917, significant 4 David Trask, The AEF and Coalition...on 16 December 1917. The formal closure of the Eastern Front, which became effective with the Treaty of Brest -Litovsk on 3 March 1918, freed a

  20. Wound healing with honey - a randomised controlled trial

    African Journals Online (AJOL)

    and calculate the cost-effectiveness of the honey used. Design and ... Natural honey is extremely cost- effective. ... surrounding wound infection, genital or malignant ulcers, wounds ... body mass index, systolic and diastolic blood pressure, and.

  1. chemical profiles of honeys originating from different floral sources

    African Journals Online (AJOL)

    2015-02-05

    Feb 5, 2015 ... FLORAL SOURCES AND GEOGRAPHIC LOCATIONS EXAMINED BY A ... quality honeys retail for premium prices, but these honeys are increasingly being counterfeited ... distinguish between two floral sources in Malaysia.

  2. Effect of tomato cultivars, honey finisher and processing methods on ...

    African Journals Online (AJOL)

    chemical, microbiological and sensory qualities of the ketchup. Also, honey concentration treatment improved the quality of ketchup. Addition of honey at 500 ml level resulted in higher reducing sugar, total sugar, titratable acidity and total soluble ...

  3. Utilisatiion of topical honey In Burns wounds contaminated with ...

    African Journals Online (AJOL)

    personal

    suitable for bacterial infection as a result of low tissue perfusion and high protein content. ... Conclusion:The topical use of honey in deep burn wounds contaminated with pseudomonas ... voiced to Honey bee to lodge in mountains and.

  4. Pollen Contents Of Commercial Honeys Of Opi, Nsukka, Enugu ...

    African Journals Online (AJOL)

    Pollen Contents Of Commercial Honeys Of Opi, Nsukka, Enugu State, Nigeria. ... Abstract. Pollen analyses of seven honey samples from Opi-Nsukka Mini market were evaluated for their pollen composition. The results ... HOW TO USE AJOL.

  5. Honey improves lipid profile of diet-induced hypercholesterolemic rats

    Directory of Open Access Journals (Sweden)

    Titis Nurmasitoh

    2016-04-01

    Honey supplementation was able to reduce the blood levels of total cholesterol, triglycerides, and LDL. Honey supplementation accompanied by non-cholesterol feeds could more effectively lower total cholesterol, triglycerides, and LDL serum levels in Wistar rats.

  6. Antigiardial activity of glycoproteins and glycopeptides from Ziziphus honey.

    Science.gov (United States)

    Mohammed, Seif Eldin A; Kabashi, Ahmed S; Koko, Waleed S; Azim, M Kamran

    2015-01-01

    Natural honey contains an array of glycoproteins, proteoglycans and glycopeptides. Size-exclusion chromatography fractionated Ziziphus honey proteins into five peaks with molecular masses in the range from 10 to >200 kDa. The fractionated proteins exhibited in vitro activities against Giardia lamblia with IC50 values ≤ 25 μg/mL. Results indicated that honey proteins were more active as antiprotozoal agents than metronidazole. This study indicated the potential of honey proteins and peptides as novel antigiardial agents.

  7. Honey as a bioindicator of environment contamination with caesium

    International Nuclear Information System (INIS)

    Barisic, D.; Lovrencic, I.; Orescanin, V.; Kezic, N.; Bubalo, D.; Popijac, M.; Volner, M.

    2005-01-01

    Collecting nectar and pollen, bees cover area of approximately 20 km 2 . Honey from a beehive represents a composite sample collected from several hundreds of millions of points and is probably one of the most representative random samples possible to collect in the environment. Therefore, information contained in honey gives good reflection of an average environment condition considering bioavailable elements and/or chemical compounds. Results of measured 1 37C s activities in different types of honey collected on the area of Republic of Croatia in period from 2000 to 2003 are given in this paper. The activity of 1 37C s is measured with gamma spectrometric method and the types of honey are defined on the basis of pollen analysis and from measuring electro conductivity. More than 15 years after the accident in Chernobyl, it is still possible to monitor 1 37C s activity in several types of honey. The greatest 1 37C s activities are detected in pure fir-tree and spruce honey-dew honey (15.7 ± 5.6 Bq/kg), mixed honey containing honey-dew (7.4 ± 3.9 Bq/kg) and in pure chestnut honey (4.5 ± 2.4 Bq/kg). On the other side, 1 37C s has not been found in any of the samples of pure lime- and locust-tree honeys, while in the meadow honey it has been detected only twice. Considering that measured activities of 1 37C s in honey correspond with the levels of contamination of particular areas, coniferous honey-dew honeys, as well as pure chestnut honey, can be used as bioindicators in monitoring the environment contaminated with 1 37C s.(author)

  8. Assessing Patterns of Admixture and Ancestry in Canadian Honey Bees

    Science.gov (United States)

    Canada has a large beekeeping industry comprised of 8483 beekeepers managing 672094 23 colonies. Canadian honey bees, like all honey bees in the New World, originate from centuries of importation of predominately European honey bees, but their precise ancestry remains unknown. There have been no i...

  9. Comparative Study of Honey Collected from Different Flora of Algeria

    African Journals Online (AJOL)

    ... 0.324± 0.116 mS/cm and 0.141± 0.065%, respectively. The mean color was 81 ± 72 mm Pfund. The majority of honey samples test results (moisture content, electric conductivity and acidity) levels were within the acceptable range of world honey standards. Keywords: Apis mellifera, biochemical characters, unifloral honey ...

  10. Phytochemical screening and antimicrobial activity of apiary honey ...

    African Journals Online (AJOL)

    Honey produced by honeybee (Apis mellifera) which is used in herbal medicine was examined for its chemical constituents and antimicrobial activity. The phytochemical analysis of honey showed the presence of alkaloids, flavonoids, saponins, steroids, reducing sugar and glycosides. Antimicrobial activity of honey on fresh ...

  11. VIS/NIR imaging application for honey floral origin determination

    NARCIS (Netherlands)

    Minaei, Saeid; Shafiee, Sahameh; Polder, Gerrit; Moghadam-Charkari, Nasrolah; Ruth, van Saskia; Barzegar, Mohsen; Zahiri, Javad; Alewijn, Martin; Kuś, Piotr M.

    2017-01-01

    Nondestructive methods are of utmost importance for honey characterization. This study investigates the potential application of VIS-NIR hyperspectral imaging for detection of honey flower origin using machine learning techniques. Hyperspectral images of 52 honey samples were taken in

  12. The honey industry in COMESA: Opportunities and challenges ...

    African Journals Online (AJOL)

    In terms of trade, only about 31.2 % of global honey production entered international trade in the same year. Whereas, the total natural honey production in Africa in 2013 was only 10.2% (169,306.00 tones) of which, 1.55 % entered international trade. The total honey production from COMESA Member States in 2013 was ...

  13. Evaluation of four apicultural products for hive colonization by honey ...

    African Journals Online (AJOL)

    Four apicultural products (honey, bee wax, slum gum and propolis) were evaluated for their potentials to attract the African honey bee (Apis mellifera adansonii) colony into artificial hives and their effect on infestation by apicultural insect pests. Ten grammes each of propolis, bee wax and slum gum and 10 ml of honey were ...

  14. Studies on the antioxidant properties of Tualang honey of Malaysia ...

    African Journals Online (AJOL)

    Honey has been used since ancient times for its nutritional as well as curative properties. Tualang honey is collected from wild honey bees' hives on Tualang trees found in the Malaysian rain forest. It has been used traditionally for the treatment of various diseases, where its therapeutic value has partly been related to its ...

  15. Honey, an unexplored topical wound dressing agent in Nigerian ...

    African Journals Online (AJOL)

    This paper presents an overview of honey as a wound dressing agent, its mechanism of action, selected cases of wounds managed with honey and a survey of veterinarians' perception and usage of honey for wound management in Nigeria. Structured questionnaires were administered to veterinary practitioners ...

  16. Antiacanthamoebic properties of natural and marketed honey in Pakistan

    Directory of Open Access Journals (Sweden)

    Farzana Abubakar Yousuf

    2016-11-01

    Conclusions: This study shows that natural honey has antiacanthamoebic properties and possesses higher flavonoid, phenolic and antioxidant properties compared with the marketed honey. These findings are of concern to the public, health officials, and to the manufacturers regarding production of honey for medical applications.

  17. Honey irradiation: effect on hydroxymethylfurfural content

    International Nuclear Information System (INIS)

    Cova, M. C.; Narvaiz, Patricia

    2011-01-01

    Ionizing radiations can be used to inactivate thermo resistant microorganisms in honey, improving its hygienic and sanitary quality. 'American foulbrood' is a disease caused by the sporulated bacteria Paenibacillus larvae larvae which affects bees, diminishes honey production and impairs trade. Clostridium botulinum spores can also be present in honey and cause the disease in very young children. Considering that ionizing radiation can modify molecules, this work was undertaken to evaluate its effect on hydroxymethylfurfural (HMF) content along storage time. HMF is an aldehyde produced as sugars degrade due to excessive heating and/or time, so it is regulated as a freshness indicator in honey. Two varieties of honey, one fluid and the other creamy, of a commercial high quality brand were packaged in polypropylene recipes and stored at room temperature for 14 months. Irradiation was carried out at the semi industrial cobalt-60 facility of the Ezeiza Atomic Centre, about 600,000 Ci of activity, at doses of 0, 10, 20 and 40 kilo Grays, dose rate: 10 kGy/h, dose uniformity:1.1. HMF values, measured according to White ´s spectrophotometric method, increased along storage time in every sample. Irradiation initially diminished HMF content irrespective of dose, trend which was maintained throughout the storage period in creamy honey. Instead, in fluid honey since the fourth month the slopes corresponding to the irradiated samples curves were greater than that of the control one, as a function of dose, rendering higher HMF values in the 40 kGy sample as compared with control since the 10 th storage month. Possibly the prevailing first irradiation effect during storage time is HMF breakdown, followed by enhanced synthesis. (author) [es

  18. THE INFLUENCE OF THE BOTANIC ORIGIN OF HONEY PLANTS ON THE QUALITY OF HONEY

    Directory of Open Access Journals (Sweden)

    Z. Tucak

    2007-06-01

    Full Text Available Numerous parameters affect the quality of honey from different beehive types (Albert – Žindaršić AŽ, Langstroth – Roott LR i Dadant – Blatt DB, i.e. the material of beehives are made of, the origin of queen bees (natural and selected, etc. Our research focuses on the influence of the botanic origin of honey plants (Tilia sp. L. (lime, Amorpha fructirosa L. (desert false indigo, Helianthus annuus L. (sunflower, Brassica napus subsp. olifera DC. (oil beet and Robina pseudoacacia L. (acacia on the quality of honey. The physical and chemical analyses of honey (N=133 (water %, water insoluble compounds %, acidity level, mmol of acid per kg, electrical conductivity, mS/cm, reducing sugar %, sucrose %, HMF, mg/kg, and diastasic number were conducted by Harmonised methods of the European Honey. The pollen analysis was conducted by Harmonised methods of melissopalynology. The pollen analysis indicates that the botanic origin has had a statistically significant influence (P<0.001 on the quality of all investigated characteristics of honey, except on the share of the non–dissolving substances (P=0.088. The research was conducted in the Vukovar-Srijem County, the Republic of Croatia. All bees used in this research belong to the Carniolan honey bee (Apis mellifera carnica, the European bee species.

  19. Honey Bee Infecting Lake Sinai Viruses.

    Science.gov (United States)

    Daughenbaugh, Katie F; Martin, Madison; Brutscher, Laura M; Cavigli, Ian; Garcia, Emma; Lavin, Matt; Flenniken, Michelle L

    2015-06-23

    Honey bees are critical pollinators of important agricultural crops. Recently, high annual losses of honey bee colonies have prompted further investigation of honey bee infecting viruses. To better characterize the recently discovered and very prevalent Lake Sinai virus (LSV) group, we sequenced currently circulating LSVs, performed phylogenetic analysis, and obtained images of LSV2. Sequence analysis resulted in extension of the LSV1 and LSV2 genomes, the first detection of LSV4 in the US, and the discovery of LSV6 and LSV7. We detected LSV1 and LSV2 in the Varroa destructor mite, and determined that a large proportion of LSV2 is found in the honey bee gut, suggesting that vector-mediated, food-associated, and/or fecal-oral routes may be important for LSV dissemination. Pathogen-specific quantitative PCR data, obtained from samples collected during a small-scale monitoring project, revealed that LSV2, LSV1, Black queen cell virus (BQCV), and Nosema ceranae were more abundant in weak colonies than strong colonies within this sample cohort. Together, these results enhance our current understanding of LSVs and illustrate the importance of future studies aimed at investigating the role of LSVs and other pathogens on honey bee health at both the individual and colony levels.

  20. Physicochemical parameters of Amazon Melipona honey

    Directory of Open Access Journals (Sweden)

    Ligia Bicudo de Almeida-Muradian

    2007-06-01

    Full Text Available Stingless bees produce a honey that is different from the Apis honey in terms of composition. There aren't enough data to establish quality control parameters for this product, mainly due to lack of research results. The aim of this work is to evaluate some physicochemical parameters that can be used for the characterization and for the quality control of the Meliponinae honey. Four different samples were collected in the Amazon region of Brazil in 2004 (Melipona compressipes manaoense bee and Melipona seminigra merribae bee. Honey analyses were performed as described by the official methods. The mean results were: moisture (30.13%, pH (3.65, acidity (24.57 mEq/kg, water activity (0.75, fructose (31.91%, glucose (29.30% and sucrose (0.19%. These results reinforce the need for a specific regulation for stingless bee honey. This will only be feasible when enough data is available to establish upper and lower limits for the physicochemical parameters used for quality control.

  1. Honey Bee Infecting Lake Sinai Viruses

    Directory of Open Access Journals (Sweden)

    Katie F. Daughenbaugh

    2015-06-01

    Full Text Available Honey bees are critical pollinators of important agricultural crops. Recently, high annual losses of honey bee colonies have prompted further investigation of honey bee infecting viruses. To better characterize the recently discovered and very prevalent Lake Sinai virus (LSV group, we sequenced currently circulating LSVs, performed phylogenetic analysis, and obtained images of LSV2. Sequence analysis resulted in extension of the LSV1 and LSV2 genomes, the first detection of LSV4 in the US, and the discovery of LSV6 and LSV7. We detected LSV1 and LSV2 in the Varroa destructor mite, and determined that a large proportion of LSV2 is found in the honey bee gut, suggesting that vector-mediated, food-associated, and/or fecal-oral routes may be important for LSV dissemination. Pathogen-specific quantitative PCR data, obtained from samples collected during a small-scale monitoring project, revealed that LSV2, LSV1, Black queen cell virus (BQCV, and Nosema ceranae were more abundant in weak colonies than strong colonies within this sample cohort. Together, these results enhance our current understanding of LSVs and illustrate the importance of future studies aimed at investigating the role of LSVs and other pathogens on honey bee health at both the individual and colony levels.

  2. Rheology of irradiated honey from Parana region

    Energy Technology Data Exchange (ETDEWEB)

    Sabato, S.F. E-mail: sfsabato@ipen.br

    2004-10-01

    Viscosity characteristics can be governed by the molecular chain length of sugars present in the honey. Honey is essentially a mixture of sugar and water. When a physical treatment, as gamma radiation, is applied to food, some changes on its viscosity may occur. Viscosity is one of the important properties of honey and depends on water and sugar quantities. The objective of this work was to verify the rheological behavior of irradiated honey from Parana region in comparison to the unirradiated one. Each rheogram was measured at different shear rates that was increased to a certain value then immediately decreased to the starting point ('up and down curves'). These measurements were made for control and irradiated samples (5 and 10 kGy) in different temperatures (30 deg. C, 35 deg. C and 40 deg. C). The curves constructed with shear stress against shear rate presented linearity. Honey, irradiated and control, showed a Newtonian behavior and gamma radiation did not affect it.

  3. Determination of streptomycin residues in honey

    Directory of Open Access Journals (Sweden)

    Monica Cristina Cara,

    2011-06-01

    Full Text Available Honey was the first sweet substance used in human food as a precursor sugar cane or beet. Honey production by bees is a complex process of transformation, from harvesting and ending with a striking honeycomb cells. Immediately after extraction, honey is always clear and liquid. This is due to the high content of fructose, which makes some items, such as locust always remain liquid. If the glucose is higher than that of fructose, honey will crystallize at temperatures below 18°C. Honey is easily susceptible to heat, so they should be stored at room temperature. Bees, like all living organisms, can become ill with various diseases. These, by mortality that occur among individuals of the colony, thereby reducing the number of bees and beefamilies are emptied and become unproductive. In many cases, it appears significant damage resulting in large losses for beekeepers. Prevention, detection and treatment of diseases with antibiotics is an extremely important factor in ensuring the health of bee.

  4. Carbon trends. March 2006

    International Nuclear Information System (INIS)

    2006-03-01

    This newsletter makes a monthly synthesis of the European CO 2 market: traded volumes, spot prices, conformability of facilities, supply and demand, climate indexes (temperature, precipitations from March 2005 to February 2006), economic activity indicators (industrial production from December 2004 to December 2005), confidence index of business leaders (from February 2005 to February 2006), changes in energy prices (from March 2005 to February 2006), CO 2 quotas allocated to European Union countries and detailed indicators of CO 2 market, climate, economic activity and energy prices. (J.S.)

  5. The Italian Registry of Antiphospholipid Antibodies.

    Science.gov (United States)

    Finazzi, G

    1997-01-01

    The clinical importance of antiphospholipid antibodies (APA) derives from their association with a syndrome of venous and arterial thrombosis, recurrent fetal loss and thrombocytopenia known as the antiphospholipid syndrome (APS). The Italian Registry of Antiphospholipid Antibodies was set up in 1989 for the purpose of collecting a large number of patients with lupus anticoagulant (LA) or anticardiolipin antibodies (ACA) for clinical studies in order to obtain more information on the clinical features of APS. The Italian Registry has completed two clinical studies and proposed an international trial on the treatment of APS patients. These activities of the Registry are reviewed herein. Additional information has been obtained from pertinent articles and abstracts published in journals covered by the Science Citation Index and Medline. The first study of the Registry was a retrospective analysis of enrolled patients which showed that: a) the prevalence of thrombosis and thrombocytopenia was similar in cases with idiopathic APA or APA secondary to systemic lupus erythematosus, and b) the rate of thrombosis was significantly reduced in patients with severe thrombocytopenia but not in those with only a mild reduction of the platelet count. The second study was a prospective survey of the natural history of the disease, showing that a) previous thrombosis and ACA titer > 40 units were independent predictors of subsequent vascular complications; b) a history of miscarriage or thrombosis is significantly associated with adverse pregnancy outcome; c) hematological malignancies can develop during follow-up and patients with APA should be considered at increased risk of developing NHL. Thus the possibility of a hematologic neoplastic disease should be borne in mind in the initial evaluation and during the follow-up of these patients. The latest initiative of the Registry was the proposal of an international, randomized clinical trial (WAPS study) aimed at assessing the

  6. Birth of a science centre. Italian phenomenology

    Directory of Open Access Journals (Sweden)

    Paola Rodari

    2006-06-01

    Full Text Available In May 2004 the Balì Museum, Planetarium and interactive science museum, was opened to the public in Italy: 35 hands-on exhibits designed according to the interactive tradition of the Exploratorium in San Francisco, an astronomic observatory for educational activities, a Planetarium with 70 places. With a total investment of about three million euros, about two thirds of which were spent on restructuring the splendid eighteenth-century villa in which it is housed, the undertaking may be considered a small one in comparison with other European science centres. Three million euros: perhaps enough to cover the cost of only the splendid circular access ramp to the brand-new Cosmocaixa in Barcelona, an investment of one hundred million euros. But the interesting aspect of the story of the Balì Museum (but also of other Italian stories, as we shall see lies in the fact that this lively and advanced science centre stands in the bucolic region of the Marches, next to a small town of only 800 inhabitants (Saltara, in the Province of Pesaro and Urbino, in a municipal territory that has a total of 5000. Whereas in Italy the projects for science centres comparable with the Catalan one, for example projects for Rome and Turin, never get off the ground, smaller ones are opening in small and medium-sized towns: why is this? And what does the unusual location of the centres entail for science communication in Italy? This Focus does not claim to tell the whole truth about Italian interactive museums, but it does offer some phenomenological cues to open a debate on the cultural, economic and political premises that favour their lives.

  7. Honey bee surveillance: a tool for understanding and improving honey bee health.

    Science.gov (United States)

    Lee, Kathleen; Steinhauer, Nathalie; Travis, Dominic A; Meixner, Marina D; Deen, John; vanEngelsdorp, Dennis

    2015-08-01

    Honey bee surveillance systems are increasingly used to characterize honey bee health and disease burdens of bees in different regions and/or over time. In addition to quantifying disease prevalence, surveillance systems can identify risk factors associated with colony morbidity and mortality. Surveillance systems are often observational, and prove particularly useful when searching for risk factors in real world complex systems. We review recent examples of surveillance systems with particular emphasis on how these efforts have helped increase our understanding of honey bee health. Copyright © 2015 Elsevier Inc. All rights reserved.

  8. American foulbrood of the honey bee: occurrence and distribution of different genotypes of Paenibacillus larvae in the administrative district of Arnsberg (North Rhine-Westphalia).

    Science.gov (United States)

    Peters, M; Kilwinski, J; Beringhoff, A; Reckling, D; Genersch, E

    2006-03-01

    Between March 2003 and October 2004, Paenibacillus larvae, the aetiological agent of American foulbrood disease of the honey bee, was isolated from broodcombs and honey samples of 54 apiaries in the administrative district of Arnsberg (North Rhine-Westphalia, Germany). Genotyping of 176 P. larvae isolates with repetitive element polymerase chain reaction fingerprinting (rep-PCR) using BOX A1R and MBO REP1 primers revealed five different genotypes (AB, Ab, ab, ass, Acapital BE, Cyrillic). In samples of three apiaries, more than one genotype was detected. A combination of two genotypes was isolated from honey samples of the same hive two times (ab/ass and Ab/ab). The five genotypes were not randomly distributed in the district, but revealed a certain geographical clustering. Possible factors with impact on the genotype diversity and the distribution pattern are discussed.

  9. 76 FR 2655 - Honey From Argentina: Preliminary Results of Antidumping Duty Administrative Review

    Science.gov (United States)

    2011-01-14

    ...., Alimentos Naturales-Natural Foods, Alma Pura, Bomare S.A., CAA, El Mana S.A., Interrupcion S.A., Mielar.... The products covered are natural honey, artificial honey containing more than 50 percent natural honey by weight, preparations of natural honey containing more than 50 percent natural honey by weight, and...

  10. Segmentation of Honey Buyers’ Behaviour by Conjoint Analysis

    Directory of Open Access Journals (Sweden)

    Šánová P.

    2017-03-01

    Full Text Available A marketing analysis of Czech consumers’ behaviour when buying honey is discussed from the viewpoint of price, origin, honey type, crystallized sugar, and organic quality aspect. The surveyed target groups of honey consumers, who are examined also with respect to their education level, are from Prague and the Central Bohemian Region. The original premise of this research was the hypothesis that, when buying honey, customers focus primarily on its price and type. This hypothesis was verified by conjoint analysis. The results have shown that consumers are interested primarily in the price and origin of honey. An important parameter for buying honey is its (noncrystallization. Although it does not affect objective quality parameters of honey, it affects the consumers’ subjective perception of honey quality during purchase. Two clusters of honey consumers emerged through cluster analysis: the first cluster focussing on the origin, type, and price/sugar crystallization of honey, and the second interested in the origin, price, and quality of organic honey.

  11. Video Tracking Protocol to Screen Deterrent Chemistries for Honey Bees.

    Science.gov (United States)

    Larson, Nicholas R; Anderson, Troy D

    2017-06-12

    The European honey bee, Apis mellifera L., is an economically and agriculturally important pollinator that generates billions of dollars annually. Honey bee colony numbers have been declining in the United States and many European countries since 1947. A number of factors play a role in this decline, including the unintentional exposure of honey bees to pesticides. The development of new methods and regulations are warranted to reduce pesticide exposures to these pollinators. One approach is the use of repellent chemistries that deter honey bees from a recently pesticide-treated crop. Here, we describe a protocol to discern the deterrence of honey bees exposed to select repellent chemistries. Honey bee foragers are collected and starved overnight in an incubator 15 h prior to testing. Individual honey bees are placed into Petri dishes that have either a sugar-agarose cube (control treatment) or sugar-agarose-compound cube (repellent treatment) placed into the middle of the dish. The Petri dish serves as the arena that is placed under a camera in a light box to record the honey bee locomotor activities using video tracking software. A total of 8 control and 8 repellent treatments were analyzed for a 10 min period with each treatment was duplicated with new honey bees. Here, we demonstrate that honey bees are deterred from the sugar-agarose cubes with a compound treatment whereas honey bees are attracted to the sugar-agarose cubes without an added compound.

  12. Energy situation. March 2003

    International Nuclear Information System (INIS)

    2003-04-01

    This report makes a status of the French energy expenses, prices, production, consumption, demand, import and export since January 2001 and up to March 2003. Details are given separately for primary energy, solid mineral fuels, petroleum products, natural gas and electric power. (J.S.)

  13. The Schrodinger Eigenvalue March

    Science.gov (United States)

    Tannous, C.; Langlois, J.

    2011-01-01

    A simple numerical method for the determination of Schrodinger equation eigenvalues is introduced. It is based on a marching process that starts from an arbitrary point, proceeds in two opposite directions simultaneously and stops after a tolerance criterion is met. The method is applied to solving several 1D potential problems including symmetric…

  14. Energy situation - March 2013

    International Nuclear Information System (INIS)

    Cadin, Didier; Korman, Bernard; Louati, Sami

    2013-05-01

    This report makes a status of the French energy expenses, prices, production, consumption, demand, import and export during the recent years and up to March 2013. Details are given separately for primary energy, solid mineral, fuels, petroleum products, natural gas and electric power. (J.S.)

  15. March market review

    International Nuclear Information System (INIS)

    Anon.

    1993-01-01

    The spot market price for uranium in unrestricted markets weakened further during March, and at month end, the NUEXCO Exchange Value had fallen $0.15, to $7.45 per pound U3O8. The Restricted American Market Penalty (RAMP) for concentrates increased $0.15, to $2.55 per pound U3O8. Ample UF6 supplies and limited demand led to a $0.50 decrease in the UF6 Value, to $25.00 per kgU as UF6, while the RAMP for UF6 increased $0.75, to $5.25 per kgU. Nine near-term uranium transactions were reported, totalling almost 3.3 million pounds equivalent U3O8. This is the largest monthly spot market volume since October 1992, and is double the volume reported in January and February. The March 31 Conversion Value was $4.25 per kgU as UF6. Beginning with the March 31 Value, NUEXCO now reports its Conversion Value in US dollars per kilogram of uranium (US$/kgU), reflecting current industry practice. The March loan market was inactive with no transactions reported. The Loan Rate remained unchanged at 3.0 percent per annum. Low demand and increased competition among sellers led to a one-dollar decrease in the SWU Value, to $65 per SWU, and the RAMP for SWU declined one dollar, to $9 per SWU

  16. Development of honey hydrogel dressing for enhanced wound healing

    International Nuclear Information System (INIS)

    Yusof, Norimah; Ainul Hafiza, A.H.; Zohdi, Rozaini M.; Bakar, Md Zuki A.

    2007-01-01

    Radiation at 25 and 50 kGy showed no effect on the acidic pH of the local honey, Gelam, and its antimicrobial property against Staphylococcus aureus but significantly reduced the viscosity. Honey stored up to 2 years at room temperature retained all the properties studied. Radiation sterilized Gelam honey significantly stimulated the rate of burn wound healing in Sprague-Dawley rats as demonstrated by the increased rate of wound contraction and gross appearance. Gelam honey attenuates wound inflammation; and re-epithelialization was well advanced compared to the treatment using silver sulphadiazine (SSD) cream. To enhance further the use of honey in wound treatment and for easy handling, Gelam honey was incorporated into our hydrogel dressing formulation, which was then cross-linked and sterilized using electron beam at 25 kGy. Hydrogel with 6% of honey was selected based on the physical appearance

  17. Potential antibacterial activity of some Saudi Arabia honey

    Directory of Open Access Journals (Sweden)

    Ahmed G. Hegazi

    2017-02-01

    Full Text Available Aim: The aim of this study was to investigate the potential antibacterial activity of some Saudi Arabia honey against selected bacterial strains of medical importance. Materials and Methods: A total of 10 Saudi Arabia honey used to evaluate their antimicrobial activity against some antibiotic-resistant pathogenic bacterial strains. The bacterial strains were Staphylococcus aureus, Streptococcus pyogenes, Klebsiella pneumoniae, Escherichia coli, and Pseudomonas aeruginosa. Results: The antibacterial activity of Saudi honey against five bacterial strains showed different levels of inhibition according to the type of honey. The overall results showed that the potential activity was differing according to the pathogen and honey type. Conclusion: It could be concluded that the Saudi honey inhibit the growth of bacterial strains and that honey can be used as complementary antimicrobial agent against selected pathogenic bacteria.

  18. QUALITY OF IMPORTED HONEYS MARKETED IN ALGERIA

    Directory of Open Access Journals (Sweden)

    L. Haderbache

    2015-01-01

    Full Text Available Honey is mostly used for therapeutic purposes, that’s why its quality must be closely monitored. This study focuses on the controle of 40 imported honeys coming from 13 countries (2004 – 2011. We revealed that they do not always have the required quality to be consumed as such. In addition to the labeling and organoleptic problems, often they contains too much moisture (≥18%; 70 % of these samples had an average HMF of 78 mg/kg and a pH less than 3.5, indicating an advanced aging and inapropriate thermal past. Pollen analysis and electrical conductivity was used to confirm presumed origins, and proline rate reveals some inverted sugar fraud. We aim by this work to catch consumers and local authorities attention in order to strengthen honey control. It is about everyone's health, and it concerns the prosperity of the national beekeeping which faces unfair competition.

  19. MICROSCOPIC FUNGI ISOLATED FROM POLISH HONEY

    Directory of Open Access Journals (Sweden)

    Soňa Felšöciová

    2012-12-01

    Full Text Available The characterization of some honey samples from Poland was carried out on the basis of their microbiological (fungi and yeasts analysis. Most of the samples contained less than 20 % water. The amount of fungi found in the honey samples was less than 1 x 102 CFU.g-1 but 19 % of the samples had more yeasts than 1 x 102 CFU.g-1 – up to 5.7 x 102 CFU.g-1. The isolated fungi were Alternaria spp., Aspergillus spp., Cladosporium spp., Fusarium spp., Mycelia sterilia, Rhizopus spp. and Penicillium spp. The last genus was isolated very frequently. A total number of eight fungal Penicillium species were identified namely, Penicillium brevicompactum, P. commune, P. corylophilum, P. crustosum, P. expansum, P. griseofulvum, P. chrysogenum and P. polonicum. They were isolated using dilution plate method. The results showed that honeys produced in this region are of good microbiological quality.

  20. [Italian Thesaurus of Bioethics, TIB].

    Science.gov (United States)

    Navarini, Claudia; Poltronieri, Elisabetta

    2004-01-01

    The article aims at illustrating the characteristics and functions of a monolingual thesaurus, focusing on the Italian Thesaurus of Bioethics (Thesaurus Italiano di Bioetica, TIB) the controlled vocabulary used to index and retrieve documents within SIBIL (Italian Online Bioethics Information System). TIB includes controlled terms (descriptors) translated from the Bioethics Thesaurus adopted by the Kennedy Institute of Ethics of the Georgetown University of Washington and revised according to the Italian context of study and scientific debate in the field of bioethics. The overall amount of TIB terms consists in over 1600 headings. Methods to link thesaurus terms hierarchically, by association and by showing synonyms as recommended in ISO standards are applied with reference to descriptors drawn from TIB. Future plans to make the English version of TIB available online within European networks are also illustrated, aiming at spreading information relating to bioethics at an international level.

  1. Honey characteristics after extraction and half-year storage

    Directory of Open Access Journals (Sweden)

    Vladimíra Kňazovická

    2015-12-01

    Full Text Available The aim of the study was to analyze the fresh honey after extracting and after half-year storage at room temperature. Overall, we analyzed 10 samples of rape (Brassica napus honey coming from district Vranov nad Toplou located in the eastern Slovakia. The analysis consisted of the evaluation of the physico-chemical parameters (water content, free acidity and electrical conductivity and microbiological evaluation (total plate count (TPC, counts of coliform bacteria, lactic acid bacteria, sporulating microorganisms and microscopic fungi. Water content, free acidity and electrical conductivity were measured according to IHC (2009, namely these parameters were detected by refractometer, titration and conductometer, respectively. We used dilution plating method for microbiological analysis. Fresh rape honey contained 18.3 ±1.0% of water. Free acidity of fresh rape honey was 12.7 ±2.0 meq.kg-1 and electrical conductivity was 0.14 mS.cm-1. After half a year of storage, water content and electrical conductivity decreased nonsignificantly and free acidity increased nonsignificantly. Stored honey samples meet the requirements of Decree 41/2012 and 106/2012. From microbiological point of view, fresh rape honey showed relatively high microbial counts. Mean values of TPC, sporulating microorganisms, lactic acid bacteria and yeasts exceeded 2.00 log cfu/g. All spotted microbial groups decreased in the stored honey comparing with the fresh honey. We found significant (p ˂0.01 differences of TPC, lactic acid bacteria and yeasts comparing the fresh and stored honey samples. Evaluating microbiological parameters, one sample of stored honey did not meet the requirements of Codex Alimentarius SR (2014. TPC exceeded the limit value. Based on the results we can conclude that all samples meet the requirements for good quality honey. Microbial counts in the honey decreased gradually. Probably, various microorganisms have important role in creation of the honey from

  2. Honey, Hadza, hunter-gatherers, and human evolution.

    Science.gov (United States)

    Marlowe, Frank W; Berbesque, J Colette; Wood, Brian; Crittenden, Alyssa; Porter, Claire; Mabulla, Audax

    2014-06-01

    Honey is the most energy dense food in nature. It is therefore not surprising that, where it exists, honey is an important food for almost all hunter-gatherers. Here we describe and analyze widespread honey collecting among foragers and show that where it is absent, in arctic and subarctic habitats, honey bees are also rare to absent. Second, we focus on one hunter-gatherer society, the Hadza of Tanzania. Hadza men and women both rank honey as their favorite food. Hadza acquire seven types of honey. Hadza women usually acquire honey that is close to the ground while men often climb tall baobab trees to raid the largest bee hives with stinging bees. Honey accounts for a substantial proportion of the kilocalories in the Hadza diet, especially that of Hadza men. Cross-cultural forager data reveal that in most hunter-gatherers, men acquire more honey than women but often, as with the Hadza, women do acquire some. Virtually all warm-climate foragers consume honey. Our closest living relatives, the great apes, take honey when they can. We suggest that honey has been part of the diet of our ancestors dating back to at least the earliest hominins. The earliest hominins, however, would have surely been less capable of acquiring as much honey as more recent, fully modern human hunter-gatherers. We discuss reasons for thinking our early ancestors would have acquired less honey than foragers ethnographically described, yet still significantly more than our great ape relatives. Copyright © 2014 Elsevier Ltd. All rights reserved.

  3. Stingless bee honey and its potential value: a systematic review

    Directory of Open Access Journals (Sweden)

    Yaacob, M.,

    2017-10-01

    Full Text Available Modern science has found that most traditional practice of using stingless bee honey has great potential as an added value in modern medicine and considered to have a higher medicinal value than other bee species. However, due to the relatively low output of honey compared to other honey so, focus on this honey is limited. Hence, this systematic review provides the updated result on the potential value of stingless bee honey as an antioxidant, anti-inflammatory, cytotoxicity and antimicrobial. The search strategy was developed in four databases (Scopus, Medline and Ovid, EMBASE and PubMed with the search terms "("honey" and "Kelulut", "honey" and "stingless bee", "honey" and "Trigona", "honey" and "pot honey", and "honey" and "Melipon"". The merged data was assessed using PRISMA guidelines and after the duplicates were removed, 1271 articles were segregated. Afterwards, 1232 articles were eliminated because they do not meet the inclusion criteria and 39 articles were reevaluated again for eligibility. Finally, after the evaluation process, only 26 of the articles were chosen for this review. The data of 26 articles of stingless bee honey were deliberated based on antioxidant properties, anti-inflammatory, cytotoxicity and analysis of antimicrobial activity. Three articles reported on antioxidant properties, one article on anti-inflammatory analysis, two articles on cytotoxicity analysis, and twenty articles on analysis of antimicrobial activity. Based on the feasible affirmation from the literature, stingless bee honey has an antioxidant capacity that able to decrease the ROS. ROS able to lead a variety of health problems thus stingless bee honey can be a dietary supplement to overcome this problem.

  4. Honey as a topical treatment for wounds.

    Science.gov (United States)

    Jull, Andrew B; Cullum, Nicky; Dumville, Jo C; Westby, Maggie J; Deshpande, Sohan; Walker, Natalie

    2015-03-06

    Honey is a viscous, supersaturated sugar solution derived from nectar gathered and modified by the honeybee, Apis mellifera. Honey has been used since ancient times as a remedy in wound care. Evidence from animal studies and some trials has suggested that honey may accelerate wound healing. The objective of this review was to assess the effects of honey compared with alternative wound dressings and topical treatments on the of healing of acute (e.g. burns, lacerations) and/or chronic (e.g. venous ulcers) wounds. For this update of the review we searched the Cochrane Wounds Group Specialised Register (searched 15 October 2014); The Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2014, Issue 9); Ovid MEDLINE (1946 to October Week 1 2014); Ovid MEDLINE (In-Process & Other Non-Indexed Citations 13 October 2014); Ovid EMBASE (1974 to 13 October 2014); and EBSCO CINAHL (1982 to 15 October 2014). Randomised and quasi-randomised trials that evaluated honey as a treatment for any sort of acute or chronic wound were sought. There was no restriction in terms of source, date of publication or language. Wound healing was the primary endpoint. Data from eligible trials were extracted and summarised by one review author, using a data extraction sheet, and independently verified by a second review author. All data have been subsequently checked by two more authors. We identified 26 eligible trials (total of 3011 participants). Three trials evaluated the effects of honey in minor acute wounds, 11 trials evaluated honey in burns, 10 trials recruited people with different chronic wounds including two in people with venous leg ulcers, two trials in people with diabetic foot ulcers and single trials in infected post-operative wounds, pressure injuries, cutaneous Leishmaniasis and Fournier's gangrene. Two trials recruited a mixed population of people with acute and chronic wounds. The quality of the evidence varied between different comparisons and

  5. ITALIAN AND ITALIAN AMERICAN IDENTITY: A VISUAL APPROACH

    African Journals Online (AJOL)

    User

    It is flexible without overall plan and contains spaces .... of Symbolic Capital, defined by Bourdieu as “The collection of luxury goods attesting to the taste and distinction of the owner” (1977: 188), ... Since “the most successful ideological effects are those which have no words ..... a market dominated by non-Italian proprietors.

  6. No apparent correlation between honey bee forager gut microbiota and honey production.

    Science.gov (United States)

    Horton, Melissa A; Oliver, Randy; Newton, Irene L

    2015-01-01

    One of the best indicators of colony health for the European honey bee (Apis mellifera) is its performance in the production of honey. Recent research into the microbial communities naturally populating the bee gut raise the question as to whether there is a correlation between microbial community structure and colony productivity. In this work, we used 16S rRNA amplicon sequencing to explore the microbial composition associated with forager bees from honey bee colonies producing large amounts of surplus honey (productive) and compared them to colonies producing less (unproductive). As supported by previous work, the honey bee microbiome was found to be dominated by three major phyla: the Proteobacteria, Bacilli and Actinobacteria, within which we found a total of 23 different bacterial genera, including known "core" honey bee microbiome members. Using discriminant function analysis and correlation-based network analysis, we identified highly abundant members (such as Frischella and Gilliamella) as important in shaping the bacterial community; libraries from colonies with high quantities of these Orbaceae members were also likely to contain fewer Bifidobacteria and Lactobacillus species (such as Firm-4). However, co-culture assays, using isolates from these major clades, were unable to confirm any antagonistic interaction between Gilliamella and honey bee gut bacteria. Our results suggest that honey bee colony productivity is associated with increased bacterial diversity, although this mechanism behind this correlation has yet to be determined. Our results also suggest researchers should not base inferences of bacterial interactions solely on correlations found using sequencing. Instead, we suggest that depth of sequencing and library size can dramatically influence statistically significant results from sequence analysis of amplicons and should be cautiously interpreted.

  7. Antimicrobial activity and rutin identification of honey produced by the stingless bee Melipona compressipes manaosensis and commercial honey.

    Science.gov (United States)

    Pimentel, Renah Boanerges de Queiroz; da Costa, Cristovão Alves; Albuquerque, Patrícia Melchionna; Junior, Sergio Duvoisin

    2013-07-01

    Honey has been identified as a potential alternative to the widespread use of antibiotics, which are of significant concern considering the emergence of resistant bacteria. In this context, this study aimed to evaluate the antimicrobial activity of honey samples produced by a stingless bee species and by Apis sp. against pathogenic bacteria, as well as to identify the presence of phenolic compounds. Honey samples from the stingless bee M. compressipes manaosensis were collected twice, during the dry and rainy seasons. Three commercial honey samples from Apis sp. were also included in this study. Two different assays were performed to evaluate the antibacterial potential of the honey samples: agar-well diffusion and broth macrodilution. Liquid-liquid extraction was used to assess phenolic compounds from honey. HPLC analysis was performed in order to identify rutin and apigenin on honey samples. Chromatograms were recorded at 340 and 290 nm. Two honey samples were identified as having the highest antimicrobial activity using the agar diffusion method. Honey produced by Melipona compressipes manaosensis inhibited the growth of Staphylococcus aureus, Escherichia coli (0157: H7), Proteus vulgaris, Shigella sonnei and Klebsiella sp. A sample of honey produced by Apis sp. also inhibited the growth of Salmonella paratyphi. The macrodilution technique presented greater sensitivity for the antibacterial testing, since all honey samples showed activity. Flavonoid rutin was identified in the honey sample produced by the stingless bee. Honey samples tested in this work showed antibacterial activity against Gram-positive and Gram-negative bacteria. The results reported herein highlight the potential of using honey to control bacterial growth.

  8. Phenotypic and genetic analyses of the varroa sensitive hygienic trait in Russian honey bee (hymenoptera: apidae) colonies.

    Science.gov (United States)

    Kirrane, Maria J; de Guzman, Lilia I; Holloway, Beth; Frake, Amanda M; Rinderer, Thomas E; Whelan, Pádraig M

    2014-01-01

    Varroa destructor continues to threaten colonies of European honey bees. General hygiene, and more specific Varroa Sensitive Hygiene (VSH), provide resistance towards the Varroa mite in a number of stocks. In this study, 32 Russian (RHB) and 14 Italian honey bee colonies were assessed for the VSH trait using two different assays. Firstly, colonies were assessed using the standard VSH behavioural assay of the change in infestation of a highly infested donor comb after a one-week exposure. Secondly, the same colonies were assessed using an "actual brood removal assay" that measured the removal of brood in a section created within the donor combs as a potential alternative measure of hygiene towards Varroa-infested brood. All colonies were then analysed for the recently discovered VSH quantitative trait locus (QTL) to determine whether the genetic mechanisms were similar across different stocks. Based on the two assays, RHB colonies were consistently more hygienic toward Varroa-infested brood than Italian honey bee colonies. The actual number of brood cells removed in the defined section was negatively correlated with the Varroa infestations of the colonies (r2 = 0.25). Only two (percentages of brood removed and reproductive foundress Varroa) out of nine phenotypic parameters showed significant associations with genotype distributions. However, the allele associated with each parameter was the opposite of that determined by VSH mapping. In this study, RHB colonies showed high levels of hygienic behaviour towards Varroa -infested brood. The genetic mechanisms are similar to those of the VSH stock, though the opposite allele associates in RHB, indicating a stable recombination event before the selection of the VSH stock. The measurement of brood removal is a simple, reliable alternative method of measuring hygienic behaviour towards Varroa mites, at least in RHB stock.

  9. Phenotypic and genetic analyses of the varroa sensitive hygienic trait in Russian honey bee (hymenoptera: apidae colonies.

    Directory of Open Access Journals (Sweden)

    Maria J Kirrane

    Full Text Available Varroa destructor continues to threaten colonies of European honey bees. General hygiene, and more specific Varroa Sensitive Hygiene (VSH, provide resistance towards the Varroa mite in a number of stocks. In this study, 32 Russian (RHB and 14 Italian honey bee colonies were assessed for the VSH trait using two different assays. Firstly, colonies were assessed using the standard VSH behavioural assay of the change in infestation of a highly infested donor comb after a one-week exposure. Secondly, the same colonies were assessed using an "actual brood removal assay" that measured the removal of brood in a section created within the donor combs as a potential alternative measure of hygiene towards Varroa-infested brood. All colonies were then analysed for the recently discovered VSH quantitative trait locus (QTL to determine whether the genetic mechanisms were similar across different stocks. Based on the two assays, RHB colonies were consistently more hygienic toward Varroa-infested brood than Italian honey bee colonies. The actual number of brood cells removed in the defined section was negatively correlated with the Varroa infestations of the colonies (r2 = 0.25. Only two (percentages of brood removed and reproductive foundress Varroa out of nine phenotypic parameters showed significant associations with genotype distributions. However, the allele associated with each parameter was the opposite of that determined by VSH mapping. In this study, RHB colonies showed high levels of hygienic behaviour towards Varroa -infested brood. The genetic mechanisms are similar to those of the VSH stock, though the opposite allele associates in RHB, indicating a stable recombination event before the selection of the VSH stock. The measurement of brood removal is a simple, reliable alternative method of measuring hygienic behaviour towards Varroa mites, at least in RHB stock.

  10. A Look into the Cell: Honey Storage in Honey Bees, Apis mellifera.

    Science.gov (United States)

    Eyer, Michael; Neumann, Peter; Dietemann, Vincent

    2016-01-01

    Honey bees, Apis species, obtain carbohydrates from nectar and honeydew. These resources are ripened into honey in wax cells that are capped for long-term storage. These stores are used to overcome dearth periods when foraging is not possible. Despite the economic and ecological importance of honey, little is known about the processes of its production by workers. Here, we monitored the usage of storage cells and the ripening process of honey in free-flying A. mellifera colonies. We provided the colonies with solutions of different sugar concentrations to reflect the natural influx of nectar with varying quality. Since the amount of carbohydrates in a solution affects its density, we used computer tomography to measure the sugar concentration of cell content over time. The data show the occurrence of two cohorts of cells with different provisioning and ripening dynamics. The relocation of the content of many cells before final storage was part of the ripening process, because sugar concentration of the content removed was lower than that of content deposited. The results confirm the mixing of solutions of different concentrations in cells and show that honey is an inhomogeneous matrix. The last stage of ripening occurred when cell capping had already started, indicating a race against water absorption. The storage and ripening processes as well as resource use were context dependent because their dynamics changed with sugar concentration of the food. Our results support hypotheses regarding honey production proposed in earlier studies and provide new insights into the mechanisms involved.

  11. A Look into the Cell: Honey Storage in Honey Bees, Apis mellifera.

    Directory of Open Access Journals (Sweden)

    Michael Eyer

    Full Text Available Honey bees, Apis species, obtain carbohydrates from nectar and honeydew. These resources are ripened into honey in wax cells that are capped for long-term storage. These stores are used to overcome dearth periods when foraging is not possible. Despite the economic and ecological importance of honey, little is known about the processes of its production by workers. Here, we monitored the usage of storage cells and the ripening process of honey in free-flying A. mellifera colonies. We provided the colonies with solutions of different sugar concentrations to reflect the natural influx of nectar with varying quality. Since the amount of carbohydrates in a solution affects its density, we used computer tomography to measure the sugar concentration of cell content over time. The data show the occurrence of two cohorts of cells with different provisioning and ripening dynamics. The relocation of the content of many cells before final storage was part of the ripening process, because sugar concentration of the content removed was lower than that of content deposited. The results confirm the mixing of solutions of different concentrations in cells and show that honey is an inhomogeneous matrix. The last stage of ripening occurred when cell capping had already started, indicating a race against water absorption. The storage and ripening processes as well as resource use were context dependent because their dynamics changed with sugar concentration of the food. Our results support hypotheses regarding honey production proposed in earlier studies and provide new insights into the mechanisms involved.

  12. "More than Honey": Investigation on Volatiles from Monovarietal Honeys Using New Analytical and Sensory Approaches.

    Science.gov (United States)

    Siegmund, Barbara; Urdl, Katharina; Jurek, Andrea; Leitner, Erich

    2018-03-14

    Eight monovarietal honeys from dandelion, fir tree, linden tree, chestnut tree, robinia, orange, lavender, and rape were investigated with respect to their volatile compounds and sensory properties. Analysis of the volatile compounds was performed by gas chromatographic techniques (one-dimensional GC-MS as well as comprehensive GC×GC-MS). For sensory evaluation Napping in combination with ultraflash profiling was applied using sensory experts. For dandelion honey, 34 volatile compounds are described for the first time to be present in dandelion honey. PCA and cluster analysis of the volatile compounds, respectively, show high correlation with the PCA obtained from sensory evaluation. Lavender and linden honey showed sensory characteristics that were not expected from these honey types. Analysis of the volatile compounds resulted in the identification of odor-active compounds that are very likely derived from sources other than the respective honeyflow. Contamination with essential oils used in apiculture is very likely to be the reason for the occurrence of these compounds in the investigated honeys.

  13. Rheology of Indian Honey: Effect of Temperature and Gamma Radiation

    Directory of Open Access Journals (Sweden)

    Sudhanshu Saxena

    2014-01-01

    Full Text Available Honey brands commonly available in Indian market were characterized for their rheological and thermal properties. Viscosity of all the honey samples belonging to different commercial brands was found to decrease with increase in temperature (5–40°C and their sensitivity towards temperature varied significantly as explained by calculating activation energy based on Arrhenius model and ranged from 54.0 to 89.0 kJ/mol. However, shear rate was not found to alter the viscosity of honey indicating their Newtonian character and the shear stress varied linearly with shear rate for all honey samples. Honey is known to contain pathogenic microbial spores and in our earlier study gamma radiation was found to be effective in achieving microbial decontamination of honey. The effect of gamma radiation (5–15 kGy on rheological properties of honey was assessed, and it was found to remain unchanged upon radiation treatment. The glass transition temperatures (Tg of these honey analyzed by differential scanning calorimetry varied from −44.1 to −54.1°C and remained unchanged upon gamma radiation treatment. The results provide information about some key physical properties of commercial Indian honey. Radiation treatment which is useful for ensuring microbial safety of honey does not alter these properties.

  14. Honey bee: a consumer’s point of view

    Directory of Open Access Journals (Sweden)

    Zavodna Lucie Sara

    2016-09-01

    Full Text Available This article concerns the way bee products are perceived by customers. It is mainly focused on honey, which is considered the main output product of beekeeping. Beekeeping is a very popular activity in the Czech Republic. Based on current data there are over 48 thousand people engaged in beekeeping in the Czech Republic. Hand in hand with the increasing number of beekeepers the popularity of bee products - especially honey - among Czech consumers is also growing. Recently, the consumption of honey in the Czech Republic has been slightly increasing. A big problem today is that honey sold in Czech supermarkets is frequently falsified. At the same time, it is increasingly popular to buy honey directly from beekeepers. The aim of this research was to describe the situation about the honey market in the Czech Republic, and also to examine the relationship between consumers on the one hand, and honey/beekeepers on the other. We have also considered customer's trust in organic honey and honey sold in supermarket chains. Results show that consumers view bee products as generally healthy and prefer to buy bee products from a beekeeper because of greater convenience as locally sourced honey is perceived to be of higher quality. The majority of consumers agree with paying a higher price for a product of higher quality. The article confirmed the hypothesis that most people think that bee products sold by a beekeeper are healthier than those bought at ordinary shops.

  15. Medicinal and cosmetic uses of Bee's Honey - A review.

    Science.gov (United States)

    Ediriweera, E R H S S; Premarathna, N Y S

    2012-04-01

    Bee's honey is one of the most valued and appreciated natural substances known to mankind since ancient times. There are many types of bee's honey mentioned in Ayurveda. Their effects differ and 'Makshika' is considered medicinally the best. According to modern scientific view, the best bee's honey is made by Apis mellifera (Family: Apidae). In Sri Lanka, the predominant honey-maker bee is Apis cerana. The aim of this survey is to emphasize the importance of bee's honey and its multitude of medicinal, cosmetic and general values. Synonyms, details of formation, constitution, properties, and method of extraction and the usages of bee's honey are gathered from text books, traditional and Ayurvedic physicians of Western and Southern provinces, villagers of 'Kalahe' in Galle district of Sri Lanka and from few search engines. Fresh bee's honey is used in treatment of eye diseases, throat infections, bronchial asthma, tuberculosis, hiccups, thirst, dizziness, fatigue, hepatitis, worm infestation, constipation, piles, eczema, healing of wounds, ulcers and used as a nutritious, easily digestible food for weak people. It promotes semen, mental health and used in cosmetic purposes. Old bee's honey is used to treat vomiting, diarrhea, rheumatoid arthritis, obesity, diabetes mellitus and in preserving meat and fruits. Highly popular in cosmetic treatment, bee's honey is used in preparing facial washes, skin moisturizers, hair conditioners and in treatment of pimples. Bee's honey could be considered as one of the finest products of nature that has a wide range of beneficial uses.

  16. Education and Italian Regional Development

    Science.gov (United States)

    Di Liberto, Adriana

    2008-01-01

    In this paper, we study the connection between growth and human capital in a convergence regression for the panel of Italian regions. We include measures of average primary, secondary and tertiary education. We find that increased education seems to contribute to growth only in the South. Decomposing total schooling into its three constituent…

  17. Honey bee hemocyte profiling by flow cytometry.

    Science.gov (United States)

    Marringa, William J; Krueger, Michael J; Burritt, Nancy L; Burritt, James B

    2014-01-01

    Multiple stress factors in honey bees are causing loss of bee colonies worldwide. Several infectious agents of bees are believed to contribute to this problem. The mechanisms of honey bee immunity are not completely understood, in part due to limited information about the types and abundances of hemocytes that help bees resist disease. Our study utilized flow cytometry and microscopy to examine populations of hemolymph particulates in honey bees. We found bee hemolymph includes permeabilized cells, plasmatocytes, and acellular objects that resemble microparticles, listed in order of increasing abundance. The permeabilized cells and plasmatocytes showed unexpected differences with respect to properties of the plasma membrane and labeling with annexin V. Both permeabilized cells and plasmatocytes failed to show measurable mitochondrial membrane potential by flow cytometry using the JC-1 probe. Our results suggest hemolymph particulate populations are dynamic, revealing significant differences when comparing individual hive members, and when comparing colonies exposed to diverse conditions. Shifts in hemocyte populations in bees likely represent changing conditions or metabolic differences of colony members. A better understanding of hemocyte profiles may provide insight into physiological responses of honey bees to stress factors, some of which may be related to colony failure.

  18. The Plight of the Honey Bee

    Science.gov (United States)

    Hockridge, Emma

    2010-01-01

    The decline of colonies of honey bees across the world is threatening local plant biodiversity and human food supplies. Neonicotinoid pesticides have been implicated as a major cause of the problem and are banned or suspended in several countries. Other factors could also be lowering the resistance of bees to opportunist infections by, for…

  19. Testing Honey Bees' Avoidance of Predators

    Science.gov (United States)

    Robinson, Jesse Wade; Nieh, James C.; Goodale, Eben

    2012-01-01

    Many high school science students do not encounter opportunities for authentic science inquiry in their formal coursework. Ecological field studies can provide such opportunities. The purpose of this project was to teach students about the process of science by designing and conducting experiments on whether and how honey bees (Apis mellifera)…

  20. NUTRITIOUS – HEALING STRUCTURE OF SOME KINDS OF HONEY IN EASTERN CROATIA

    Directory of Open Access Journals (Sweden)

    Zvonimir Tucak

    2000-06-01

    Full Text Available Honey as food and honey as medicine are for a long time in peoples use. The nutritious and healing substances are different, also of the honey-herbs which the bees visit. The analised kind of honey (Acacia, Flower honey, linden-honey showw a real richnes in healing and nutritious structure. The organoleptic and chemical features of the analised honey- types fit into the standards of Republic Croatia and the Europian Unit. The said exhibitors justificate the hitherto way of bee-keeping and the technology of honey-production.

  1. Genetic stock identification of Russian honey bees.

    Science.gov (United States)

    Bourgeois, Lelania; Sheppard, Walter S; Sylvester, H Allen; Rinderer, Thomas E

    2010-06-01

    A genetic stock certification assay was developed to distinguish Russian honey bees from other European (Apis mellifera L.) stocks that are commercially produced in the United States. In total, 11 microsatellite and five single-nucleotide polymorphism loci were used. Loci were selected for relatively high levels of homogeneity within each group and for differences in allele frequencies between groups. A baseline sample consisted of the 18 lines of Russian honey bees released to the Russian Bee Breeders Association and bees from 34 queen breeders representing commercially produced European honey bee stocks. Suitability tests of the baseline sample pool showed high levels of accuracy. The probability of correct assignment was 94.2% for non-Russian bees and 93.3% for Russian bees. A neighbor-joining phenogram representing genetic distance data showed clear distinction of Russian and non-Russian honey bee stocks. Furthermore, a test of appropriate sample size showed a sample of eight bees per colony maximizes accuracy and consistency of the results. An additional 34 samples were tested as blind samples (origin unknown to those collecting data) to determine accuracy of individual assignment tests. Only one of these samples was incorrectly assigned. The 18 current breeding lines were represented among the 2009 blind sampling, demonstrating temporal stability of the genetic stock identification assay. The certification assay will be used through services provided by a service laboratory, by the Russian Bee Breeders Association to genetically certify their stock. The genetic certification will be used in conjunction with continued selection for favorable traits, such as honey production and varroa and tracheal mite resistance.

  2. Physico-chemical studies on adulteration of honey in Nigeria.

    Science.gov (United States)

    Lawal, R A; Lawal, A K; Adekalu, J B

    2009-08-01

    The extent of adulteration of honey samples from various geographical locations in Nigeria was evaluated. In order to ascertain the quality and extent of adulteration of the honey samples, the total titrable acidity, brix content, pH, colour, viscosity, moisture content, total solids, ash content, hydroxymethyl furfural and microbiological analysis were carried out. Honey samples from Akwa-Ibom, Ondo and Ogun had a high hydroxymethyl furfural with coliforms and total bacteria counts being absent, while honey samples from Shaki, Yola and Ibadan had a low hydroxymethyl furfural and some total viable counts were present in them. These results indicate that honey samples from Akwa-Ibom, Ondo and Ogun were completely free of adulteration. However, honey samples obtained from Shaki, Yola and Ibadan were discovered to have undergone some form of adulteration.

  3. Development of sample preparation method for honey analysis using PIXE

    International Nuclear Information System (INIS)

    Saitoh, Katsumi; Chiba, Keiko; Sera, Koichiro

    2008-01-01

    We developed an original preparation method for honey samples (samples in paste-like state) specifically designed for PIXE analysis. The results of PIXE analysis of thin targets prepared by adding a standard containing nine elements to honey samples demonstrated that the preparation method bestowed sufficient accuracy on quantitative values. PIXE analysis of 13 kinds of honey was performed, and eight mineral components (Si, P, S, K, Ca, Mn, Cu and Zn) were detected in all honey samples. The principal mineral components were K and Ca, and the quantitative value for K accounted for the majority of the total value for mineral components. K content in honey varies greatly depending on the plant source. Chestnuts had the highest K content. In fact, it was 2-3 times that of Manuka, which is known as a high quality honey. K content of false-acacia, which is produced in the greatest abundance, was 1/20 that of chestnuts. (author)

  4. Functional properties of honey supplemented with bee bread and propolis.

    Science.gov (United States)

    Kowalski, S; Makarewicz, M

    2017-11-01

    The aim of this work was characterisation of functional properties of honey enriched with propolis and beebread. In first step of experiment, soft propolis extract (SPEx) was obtained by extraction of propolis with ethanol. SPEx (0.25 to 1.0% w/w) as well as beebread (5 to 15% w/w) were implemented into natural honey. Fortified honeys were investigated in terms of total phenolic content, radical scavenging activity and ferric reducing antioxidant power, also their effects on the micro-organisms growth was examined. It was found that beebread had the most significant influence on antioxidant properties. On the other hand, all tested honeys showed antibacterial activity against Escherichia coli but not against Micrococcus luteus. Honeys with 1% of propolis addition were the most effective in this case. Research has indicated that for antioxidant and antimicrobial properties of honey, it is beneficial to enrich it in both beebread and propolis.

  5. Tropilaelaps mite: an emerging threat to European honey bee.

    Science.gov (United States)

    Chantawannakul, Panuwan; Ramsey, Samuel; vanEngelsdorp, Dennis; Khongphinitbunjong, Kitiphong; Phokasem, Patcharin

    2018-04-01

    The risk of transmission of honey bee parasites has increased substantially as a result of trade globalization and technical developments in transportation efficacy. Great concern over honey bee decline has accelerated research on newly emerging bee pests and parasites. These organisms are likely to emerge from Asia as it is the only region where all 10 honey bee species co-occur. Varroa destructor, an ectoparasitic mite, is a classic example of a pest that has shifted from A. cerana, a cavity nesting Asian honey bee to A. mellifera, the European honey bee. In this review, we will describe the potential risks to global apiculture of the global expansion of Tropilaelaps mercedesae, originally a parasite of the open-air nesting Asian giant honey bee, compared to the impact of V. destructor. Copyright © 2018 Elsevier Inc. All rights reserved.

  6. Immunomodulatory effects of honey cannot be distinguished from endotoxin

    DEFF Research Database (Denmark)

    Timm, Michael; Bartelt, Stine; Hansen, Erik Wind

    2008-01-01

    in vitro effects of honey. Our results show that natural honeys induce interleukin-6 release from Mono Mac 6 cells as well as release of reactive oxygen species from all-trans retinoic acid (ATRA) differentiated HL-60 cells. The natural honeys contained substantial amounts of endotoxin, and the responses...... observed in the cell based assays were similar to the responses induced by endotoxin alone. In addition, we determined that the immunomodulatory component present in the natural honeys was retained in the ultra filtrated fraction with a molecular weight greater than 20 kDa. The component was resistant...... to boiling and its immunomodulatory activity could be abrogated by the addition of polymyxin B. We speculate that the observed in vitro immunomodulatory effects of honey might solely be explained by the endotoxin content in the natural honeys....

  7. Honey physicochemical properties of three species of the brazilian Melipona

    OpenAIRE

    Lage, Lorena G.A.; Coelho, Lívia L.; Resende, Helder C.; Tavares, Mara G.; Campos, Lucio A.O.; Fernandes-Salomão, Tânia M.

    2012-01-01

    Physicochemical analyses were carried out to evaluate 27 samples of honeys from three species of the Brazilian genus Melipona (M. capixaba, M. rufiventris and M. mondury) from Espírito Santo and Minas Gerais States. The parameters water activity (Aw), percentage of soluble solids (Brix %), pH, acidity (meq/Kg) and moisture (%) were evaluated. The honey characteristics obtained from these samples were very similar to the ones from other Melipona species. However, regarding the honey from Apis ...

  8. Detection and quantification of pyrrolizidine alkaloids in antibacterial medical honeys.

    Science.gov (United States)

    Cramer, Luise; Beuerle, Till

    2012-12-01

    In recent years, there has been an increasing interest in antibacterial honey for wound care ranging from minor abrasions and burns to leg ulcers and surgical wounds. On the other hand, several recent studies demonstrated that honey for human consumption was contaminated with natural occurring, plant derived pyrrolizidine alkaloids.1,2-Unsaturated pyrrolizidine alkaloids are a group of secondary plant metabolites that show developmental, hepato-, and geno-toxicity as well as carcinogenic effects in animal models and in in vitro test systems. Hence, it was of particular interest to analyze the pyrrolizidine alkaloid content of medical honeys intended for wound care.19 different medical honey samples and/or batches were analyzed by applying a recently established pyrrolizidine alkaloid sum parameter method. 1,2-Unsaturated pyrrolizidine alkaloids were converted into the common necin backbone structures and were analyzed and quantified by GC-MS in the selected ion monitoring mode.All but one medical honey analyzed were pyrrolizidine alkaloid positive. The results ranged from 10.6 µg retronecine equivalents per kg to 494.5 µg retronecine equivalents/kg medical honey. The average pyrrolizidine alkaloid content of all positive samples was 83.6 µg retronecine equivalents/kg medical honey (average of all samples was 79.3 µg retronecine equivalents/kg medical honey). The limit of detection was 2.0 µg retronecine equivalents/kg medical honey, while the limit of quantification was 6.0 µg retronecine equivalents/kg medical honey (S/N > 7/1).Based on the data presented here and considering the fact that medical honeys can be applied to open wounds, it seems reasonable to discuss the monitoring of 1,2-unsaturated pyrrolizidine alkaloids in honey intended for wound treatment. Georg Thieme Verlag KG Stuttgart · New York.

  9. Irradiation of honey for food and medicinal purposes

    International Nuclear Information System (INIS)

    Norimah Yusof; Zainon Othman; Salabiah Abd Majid

    2002-01-01

    Honey has been used as food and for its medicinal value for centuries. Even though its microbial content is usually low as its acidity and high viscosity can inhibit any microbial growth, some incidents of contamination with Clostridium spores were reported. Therefore, ionising radiation can be considered to decontaminate the pathogens or even sterilise (Pucuk daun, durian, gelam, bunga gelam and Asli) and three imported honeys (manuka Clement, Waitemata and Capilani Sweet Meadow). Results showed that the microbial count was 2.1 rather low in all honey hence membrane filtration method is more suitable than spread plate method to determine the microbial count in honey samples. The lowest microbial count was 2.1 counts/g for bunga gelam and the highest was 33.4 counts/g for capilano sweet in the sensory tests for taste, viscosity, colour and overall acceptance (P<0.05). Gamma irradiation at 25 kGy and 50 kGy (in gelam, pucuk daun, durian, manuka clement and waitemata) did not give any effect on the antibacterial property when the irradiated honey was added into the bacterial suspension of staphylococcus aureus. Heat at 50 degree C did not reduce the antibacterial property of irradiated honey. All local honeys showed antimicrobial indicated for its high medicinal value. The results show that gamma irradiation is useful to decontaminate honey from pathogenic contaminants or even to sterilise honey for safe use without any changes in its organoleptic and antibacterial property. (Author)

  10. Temperature Effect on Rheological Behavior of Portuguese Honeys

    Directory of Open Access Journals (Sweden)

    Afonso Maria João

    2018-09-01

    Full Text Available In the present work the temperature effect on rheological properties of Portuguese honeys was studied for the first time. Two unifloral honeys – heather and rosemary – and a polyflower honey were analyzed. All honeys showed flow independence over time and behaved as Newtonian fluids at the studied temperature and shear rate ranges. For all honeys it was found that the viscosity decreased with temperature and the rosemary honey was the one that always presented the lowest viscosity at 30°C (6120 mPa·s, 50°C (603 mPa·s and 70°C (145 mPa·s. The temperature dependence of viscosity was well described by the K0×eAT-B$K_0 \\times e^{{A \\over {T - B}}} $ equation. Nevertheless, good regression coefficients were also obtained when fitting the experimental data to the Arrhenius model, showing the rosemary honey to be less temperature sensitive. The results obtained in this study are of great interest to beekeepers and industrials that handle and prepare eatable honey-based products because they will be better informed about the best type of honey to use.

  11. A case of acute hepatitis following mad honey ingestion

    Directory of Open Access Journals (Sweden)

    Fatma Sari Dogan

    2015-12-01

    Full Text Available Acute hepatitis is characterized by liver inflammation and liver cell necrosis. The most frequently observed underlying cause thereof is viruses, but various other causes, such as alcohol, medication, or toxins may also lead thereto.In this paper, a case of acute hepatitis presenting with bradycardia, hypotension, and a prominent increase in liver enzymes following mad honey ingestion is discussed. Since there are only few cases of acute hepatitis following mad honey ingestion in the literature, we want to present this subject matter. Keywords: Mad honey poisoning, Mad honey intoxication, Bradycardia, Hypotension, Acute hepatitis

  12. The antibacterial activity of honey derived from Australian flora.

    Directory of Open Access Journals (Sweden)

    Julie Irish

    Full Text Available Chronic wound infections and antibiotic resistance are driving interest in antimicrobial treatments that have generally been considered complementary, including antimicrobially active honey. Australia has unique native flora and produces honey with a wide range of different physicochemical properties. In this study we surveyed 477 honey samples, derived from native and exotic plants from various regions of Australia, for their antibacterial activity using an established screening protocol. A level of activity considered potentially therapeutically useful was found in 274 (57% of the honey samples, with exceptional activity seen in samples derived from marri (Corymbia calophylla, jarrah (Eucalyptus marginata and jellybush (Leptospermum polygalifolium. In most cases the antibacterial activity was attributable to hydrogen peroxide produced by the bee-derived enzyme glucose oxidase. Non-hydrogen peroxide activity was detected in 80 (16.8% samples, and was most consistently seen in honey produced from Leptospermum spp. Testing over time found the hydrogen peroxide-dependent activity in honey decreased, in some cases by 100%, and this activity was more stable at 4 °C than at 25 °C. In contrast, the non-hydrogen peroxide activity of Leptospermum honey samples increased, and this was greatest in samples stored at 25 °C. The stability of non-peroxide activity from other honeys was more variable, suggesting this activity may have a different cause. We conclude that many Australian honeys have clinical potential, and that further studies into the composition and stability of their active constituents are warranted.

  13. Antibiotic, Pesticide, and Microbial Contaminants of Honey: Human Health Hazards

    Directory of Open Access Journals (Sweden)

    Noori Al-Waili

    2012-01-01

    Full Text Available Agricultural contamination with pesticides and antibiotics is a challenging problem that needs to be fully addressed. Bee products, such as honey, are widely consumed as food and medicine and their contamination may carry serious health hazards. Honey and other bee products are polluted by pesticides, heavy metals, bacteria and radioactive materials. Pesticide residues cause genetic mutations and cellular degradation and presence of antibiotics might increase resistant human or animal's pathogens. Many cases of infant botulisms have been attributed to contaminated honey. Honey may be very toxic when produced from certain plants. Ingestion of honey without knowing its source and safety might be problematic. Honey should be labeled to explore its origin, composition, and clear statement that it is free from contaminants. Honey that is not subjected for analysis and sterilization should not be used in infants, and should not be applied to wounds or used for medicinal purposes. This article reviews the extent and health impact of honey contamination and stresses on the introduction of a strict monitoring system and validation of acceptable minimal concentrations of pollutants or identifying maximum residue limits for bee products, in particular, honey.

  14. Honey constituents up-regulate detoxification and immunity genes in the western honey bee Apis mellifera.

    Science.gov (United States)

    Mao, Wenfu; Schuler, Mary A; Berenbaum, May R

    2013-05-28

    As a managed pollinator, the honey bee Apis mellifera is critical to the American agricultural enterprise. Recent colony losses have thus raised concerns; possible explanations for bee decline include nutritional deficiencies and exposures to pesticides and pathogens. We determined that constituents found in honey, including p-coumaric acid, pinocembrin, and pinobanksin 5-methyl ether, specifically induce detoxification genes. These inducers are primarily found not in nectar but in pollen in the case of p-coumaric acid (a monomer of sporopollenin, the principal constituent of pollen cell walls) and propolis, a resinous material gathered and processed by bees to line wax cells. RNA-seq analysis (massively parallel RNA sequencing) revealed that p-coumaric acid specifically up-regulates all classes of detoxification genes as well as select antimicrobial peptide genes. This up-regulation has functional significance in that that adding p-coumaric acid to a diet of sucrose increases midgut metabolism of coumaphos, a widely used in-hive acaricide, by ∼60%. As a major component of pollen grains, p-coumaric acid is ubiquitous in the natural diet of honey bees and may function as a nutraceutical regulating immune and detoxification processes. The widespread apicultural use of honey substitutes, including high-fructose corn syrup, may thus compromise the ability of honey bees to cope with pesticides and pathogens and contribute to colony losses.

  15. The Italian Dementia National Plan

    Directory of Open Access Journals (Sweden)

    Teresa Di Fiandra

    2015-12-01

    Full Text Available The Italian Dementia National Plan was formulated in October 2014 by the Italian Ministry of Health in close cooperation with the regions, the National Institute of Health and the three major national associations of patients and carers. The main purpose of this strategy was to provide directive indications for promoting and improving interventions in the dementia field, not limiting to specialist and therapeutic actions, but particularly focusing on the support of patients and families throughout the pathways of care. Four main objectives are indicated: 1 promote health- and social-care interventions and policies; 2 create/strengthen the integrated network of services for dementia based on an integrated approach; 3 implement strategies for promoting appropriateness and quality of care; and 4 improve the quality of life of persons with dementia and their families by supporting empowerment and stigma reduction. These objectives and the pertaining actions are described in the present paper.

  16. Italian energy scenarios comparative evaluations

    International Nuclear Information System (INIS)

    Contaldi, Mario

    2005-01-01

    This paper reviews some representative scenarios of the evolution of the Italian primary energy consumption, updated recently. After an overview of the main macroeconomics assumptions the scenario results are cross checked at sectorial level, with a brief discussion of the underlining data and energy intensity trends. The emissions of CO 2 , SO 2 and NO x resulting from the considered scenarios are also reported and discussed [it

  17. Plutonium contamination in italian population

    International Nuclear Information System (INIS)

    Cave-Bondi, G.; Merli, S.; Rogo, M.; Sgarbazzini, M.; Clemente, G.F.; Mancini, L.; Santori, G.; Tardella, Q.

    1983-01-01

    The literature data concerning the biological and the chemical physical characteristics of plutonium are summarized in the first part of the paper. The experimental results of the plutonium concentration in complete diets, single food items and some human autopsy tissues, regarding the Italian situation, are then presented and discussed. Our experimental data are in good agreement with similar data reported in several studies carried out in some countries of the north emisphere

  18. The new Italian IVF legislation.

    Science.gov (United States)

    Benagiano, Giuseppe; Gianaroli, Luca

    2004-08-01

    Last February, the Italian Parliament gave final approval to a new Law regulating assisted reproduction technology. The new legislation fell short of the expectations of infertile couples and of all specialists in the field. There are three problems with the new Italian law; they involve social issues, human rights and the application of technology. The present paper focuses on the fact that the new rules infringe upon basic human rights and the proper application of IVF technology, because they mandate procedures that are against the best interest of the woman seeking pregnancy. The main point of controversy is the combination of a mandatory limit of three embryos for transfer, and an obligation to reimplant all produced embryos; cryopreservation of excess embryos is prohibited. Obviously, this decreases the chances of most women to achieve pregnancy, while at the same time it increases the number and complexity of procedures they need to undergo and may expose some to an unacceptable increase in the risk of multiple pregnancy. The new law is inspired by the desire to protect every newly produced embryo; this is a commendable aim, although it is in total opposition to a law passed over 25 years ago that liberalized voluntary termination of first trimester pregnancies. This means that today Italy has a law that protects every early, pre-implantation embryo, and another that allows the 'suppression' of every post-implantation one. From a technical point of view, given the low level of human fecundity, the only way to prevent the 'loss' of even one preimplantation embryo is to simply ban IVF altogether, an option that Italian legislators obviously did not have the courage to opt for. The tragedy is that Italian infertile couples are now confronted with new rules that not only severely limit the ability of physicians to correctly apply IVF technology, but are so confused that, depending on the interpretation, anyone may try to nullify the main ideological premise upon

  19. Language Policy and Planning: The Case of Italian Sign Language

    Science.gov (United States)

    Geraci, Carlo

    2012-01-01

    Italian Sign Language (LIS) is the name of the language used by the Italian Deaf community. The acronym LIS derives from Lingua italiana dei segni ("Italian language of signs"), although nowadays Italians refers to LIS as Lingua dei segni italiana, reflecting the more appropriate phrasing "Italian sign language." Historically,…

  20. Volatile fraction composition and physicochemical parameters as tools for the differentiation of lemon blossom honey and orange blossom honey.

    Science.gov (United States)

    Kadar, Melinda; Juan-Borrás, Marisol; Carot, Jose M; Domenech, Eva; Escriche, Isabel

    2011-12-01

    Volatile fraction profile and physicochemical parameters were studied with the aim of evaluating their effectiveness for the differentiation between lemon blossom honey (Citrus limon L.) and orange blossom honey (Citrus spp.). They would be useful complementary tools to the traditional analysis based on the percentage of pollen. A stepwise discriminant analysis constructed using 37 volatile compounds (extracted by purge and trap and analysed by gas chromatography-mass spectrometry), and physicochemical and colour parameters (diastase, conductivity, Pfund colour and CIE L a b) together provided a model that permitted the correct classification of 98.3% of the original and 96.6% of the cross-validated cases, indicating its efficiency and robustness. This model proved its effectiveness in the differentiation of both types of honey with another set of batches from the following year. This model, developed from the volatile compounds, physicochemical and colour parameters, has been useful for the differentiation of lemon and orange blossom honeys. Furthermore, it may be of particular interest for the attainment of a suitable classification of orange honey in which the pollen count is very low. These capabilities imply an evident marketing advantage for the beekeeping sector, since lemon blossom honey could be commercialized as unifloral honey and not as generic citrus honey and orange blossom honey could be correctly characterized. Copyright © 2011 Society of Chemical Industry.

  1. What are the proteolytic enzymes of honey and what they do tell us? A fingerprint analysis by 2-D zymography of unifloral honeys.

    Science.gov (United States)

    Rossano, Rocco; Larocca, Marilena; Polito, Teresa; Perna, Anna Maria; Padula, Maria Carmela; Martelli, Giuseppe; Riccio, Paolo

    2012-01-01

    Honey is a sweet and healthy food produced by honeybees (Apis mellifera L.) from flower nectars. Using bidimensional zymography, we have detected the, until now unrevealed, proteolytic activities present in row honey samples. The resulting zymograms were specific for each type of the four unifloral honey under study, and enzymes were identified as serine proteases by the use of specific inhibitors. Further, using bidimensional electrophoresis, we have shown that honey proteases are able to degrade the major Royal Jelly proteins and in particular MRPJ-1, the protein that promotes queen differentiation in honeybees. Our findings open new perspectives for the better understanding of honeybee development, social behaviour and role in honey production. The now discovered honey proteases may influence honey properties and quality, and bidimensional zymograms might be useful to distinguish between different honey types, establish their age and floral origin, and allow honey certification.

  2. What are the proteolytic enzymes of honey and what they do tell us? A fingerprint analysis by 2-D zymography of unifloral honeys.

    Directory of Open Access Journals (Sweden)

    Rocco Rossano

    Full Text Available Honey is a sweet and healthy food produced by honeybees (Apis mellifera L. from flower nectars. Using bidimensional zymography, we have detected the, until now unrevealed, proteolytic activities present in row honey samples. The resulting zymograms were specific for each type of the four unifloral honey under study, and enzymes were identified as serine proteases by the use of specific inhibitors. Further, using bidimensional electrophoresis, we have shown that honey proteases are able to degrade the major Royal Jelly proteins and in particular MRPJ-1, the protein that promotes queen differentiation in honeybees. Our findings open new perspectives for the better understanding of honeybee development, social behaviour and role in honey production. The now discovered honey proteases may influence honey properties and quality, and bidimensional zymograms might be useful to distinguish between different honey types, establish their age and floral origin, and allow honey certification.

  3. Taxonomy Icon Data: honey bee [Taxonomy Icon

    Lifescience Database Archive (English)

    Full Text Available honey bee Apis mellifera Arthropoda Apis_mellifera_L.png Apis_mellifera_NL.png Apis_mellife...ra_S.png Apis_mellifera_NS.png http://biosciencedbc.jp/taxonomy_icon/icon.cgi?i=Apis+mellifera&t=L h...ttp://biosciencedbc.jp/taxonomy_icon/icon.cgi?i=Apis+mellifera&t=NL http://biosciencedbc.jp/taxonomy_icon/icon.cgi?i=Apis+mellife...ra&t=S http://biosciencedbc.jp/taxonomy_icon/icon.cgi?i=Apis+mellifera&t=NS ...

  4. Measurement of optical activity of honey bee

    Science.gov (United States)

    Ortiz-Gutiérrez, Mauricio; Olivares-Pérez, Arturo; Salgado-Verduzco, Marco Antonio; Ibarra-Torres, Juan Carlos

    2016-03-01

    Optical activity of some substances, such as chiral molecules, often exhibits circular birefringence. Circular birefringence causes rotation of the vibration plane of the plane polarized light as it passes through the substance. In this work we present optical characterization of honey as function of the optical activity when it is placed in a polariscope that consists of a light source and properly arranged polarizing elements.

  5. Radioactivity in honey of the central Italy.

    Science.gov (United States)

    Meli, Maria Assunta; Desideri, Donatella; Roselli, Carla; Feduzi, Laura; Benedetti, Claudio

    2016-07-01

    Natural radionuclides and (137)Cs in twenty seven honeys produced in a region of the Central Italy were determined by alpha ((235)U, (238)U, (210)Po, (232)Th and (228)Th) and gamma spectrometry ((137)Cs, (40)K, (226)Ra and (228)Ra). The study was carried out in order to estimate the background levels of natural ((40)K, (238)U and (232)Th and their progeny) and artificial radionuclides ((137)Cs) in various honey samples, as well as to compile a data base for radioactivity levels in that region. (40)K showed a mean activity of 28.1±23.0Bqkg(-1) with a range of 7.28-101Bqkg(-1). The mean of (210)Po activity resulted 0.40±0.46Bqkg(-1) with a range of 0.03-1.98Bqkg(-1). The mean of (238)U activity resulted 0.020±0.010Bqkg(-1). (226)Ra and (228)Ra resulted always <0.34 and <0.57Bqkg(-1) respectively, (235)U, (228)Th and (232)Th were always <0.007Bqkg(-1). (137)Cs resulted <0.10Bqkg(-1) in all samples. The committed effective doses due to (210)Po from ingestion of honey for infants, children and adults account for 0.002-5.13% of the natural radiation exposure in Italy. The honeys produced in Central Italy were of good quality in relation to the studied parameters, confirming the general image of a genuine and healthy food associated to this traditional products. Copyright © 2016 Elsevier Ltd. All rights reserved.

  6. Italian decommissioning in the post-referendum era

    International Nuclear Information System (INIS)

    Ferrazzano, Vincenzo; Scarabotti, Serena

    2012-01-01

    The accident at the TEPCO Fukushima Daiichi nuclear power plant materially reverberated, with its emotional impact, on the preparation of a new nuclear policy in Italy. Italians, wishing to decide directly on the electric power source for their country, applied for a referendum procedure aimed at abrogating the newly enacted legal framework which would have paved the way for an Italian nuclear renaissance. The referendum on the repeal of nuclear power passed on 12-13 June 2011. In addition to the recent termination of the nuclear programme in Italy, effective by law for five years as a result of this referendum, this aborted renaissance of nuclear energy in Italy requires leaders to make many important decisions including how to set up decommissioning programmes and activities and how to establish a national repository for nuclear waste as envisaged by general European policy on the management of such waste. Leaders must also reach consensus regarding the future of the Italian nuclear safety authority. The purpose of this paper is to explore how the Italian Parliament has reacted to this recent referendum on the future of nuclear energy in Italy by strengthening its focus on the safe management of nuclear waste as part of the decommissioning process. More significantly, this paper will analyse the newly enacted Law No. 27 of 24 March 2012 concerning urgent measures for infrastructure development to enhance the competitiveness of the country. This law derives from a political measure taken by Prime Minister Mario Monti in the context of an economic stimulus programme aimed at improving market competition. Article 24 of this so-called 'Liberalisation Decree' focuses on the need for accelerating the deactivation and decommissioning process of Italian nuclear power plants and research reactors. In light of the newly enacted legal provisions, this paper sets forth a general comment on the legal provisions included in Article 24 of Law No. 27/2012 by indicating their

  7. General Stress Responses in the Honey Bee

    Directory of Open Access Journals (Sweden)

    Naïla Even

    2012-12-01

    Full Text Available The biological concept of stress originated in mammals, where a “General Adaptation Syndrome” describes a set of common integrated physiological responses to diverse noxious agents. Physiological mechanisms of stress in mammals have been extensively investigated through diverse behavioral and physiological studies. One of the main elements of the stress response pathway is the endocrine hypothalamo-pituitary-adrenal (HPA axis, which underlies the “fight-or-flight” response via a hormonal cascade of catecholamines and corticoid hormones. Physiological responses to stress have been studied more recently in insects: they involve biogenic amines (octopamine, dopamine, neuropeptides (allatostatin, corazonin and metabolic hormones (adipokinetic hormone, diuretic hormone. Here, we review elements of the physiological stress response that are or may be specific to honey bees, given the economical and ecological impact of this species. This review proposes a hypothetical integrated honey bee stress pathway somewhat analogous to the mammalian HPA, involving the brain and, particularly, the neurohemal organ corpora cardiaca and peripheral targets, including energy storage organs (fat body and crop. We discuss how this system can organize rapid coordinated changes in metabolic activity and arousal, in response to adverse environmental stimuli. We highlight physiological elements of the general stress responses that are specific to honey bees, and the areas in which we lack information to stimulate more research into how this fascinating and vital insect responds to stress.

  8. 76 FR 77480 - Honey From the People's Republic of China: Initiation of Anticircumvention Inquiry

    Science.gov (United States)

    2011-12-13

    ... percent honey content have identical fructose/glucose contents of approximately 70 percent and water... syrup blends in its discussion of artificial honey, while it did list refined sugar and high-fructose... high fructose corn syrup were known to be mixed with honey, making them ``honey adulterants,'' and that...

  9. 7 CFR 1434.16 - Release of the honey pledged as collateral for a loan.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Release of the honey pledged as collateral for a loan... MARKETING ASSISTANCE LOAN AND LDP REGULATIONS FOR HONEY § 1434.16 Release of the honey pledged as collateral for a loan. (a)(1) A producer shall not move or dispose of any honey pledged as collateral for a loan...

  10. Evaluation of physicochemical and antioxidant properties of two stingless bee honeys: a comparison with Apis mellifera honey from Nsukka, Nigeria.

    Science.gov (United States)

    Nweze, Justus Amuche; Okafor, J I; Nweze, Emeka I; Nweze, Julius Eyiuche

    2017-11-06

    Several physical, biochemical and antioxidant properties of two Nigerian stingless bee honey varieties (Melipona sp. and Hypotrigona sp.) were compared with Apis mellifera honey using standard analytical procedures. The mean pH of Apis mellifera, Hypotrigona sp. and Melipona sp. honeys were 4.24 ± 0.28, 3.75 ± 0.11 and 4.21 ± 0.37 respectively. The mean moisture contents of the honeys were 11.74 ± 0.47, 17.50 ± 0.80, and 13.86 ± 1.06%. Honey samples from Hypotrigona sp. when compared with other honey samples had the highest mean total dissolved solids (370.01 ± 22.51 ppm), hydroxymethylfurfural (16.58 ± 0.37 mg/kg), total acidity (35.57 ± 0.42 meq/kg), protein content (16.58 ± 0.37 g/kg), phenol content (527.41 ± 3.60 mg/kg), and ascorbic acid (161.69 ± 6.70 mg/kg), antioxidant equivalent-ascorbic acid assay value (342.33 ± 0.78 mg/kg) as well as ferric reducing power (666.88 ± 1.73 μM Fe(II)/100 g) (p honeys. This is the first study to compare the properties of Nigerian honey bees. Our results suggested that these honeys (specifically Hypotrigona sp. honey) is a good source of antioxidants comparable to A. mellifera honey.

  11. A new dewatering technique for stingless bees honey

    Directory of Open Access Journals (Sweden)

    Ramli Ahmad Syazwan

    2017-01-01

    Full Text Available One of the problems faced in stingless bee honey storage is spoilage by the fermentation process occurs in honey due to its high water content. There are a few techniques available currently, but they are time consuming and there is excessive heat involved in the process. The temperature of the process must be kept low because excessive heat can deteriorate nutrition value and biochemical content in honey. Hence, a new method of honey dewatering was developed using a Low Temperature Vacuum Drying (LTVD with induced nucleation technique.The objective of this research is to investigate the performance of a LTVD with induced nucleation to reduce the water content in honey. First, the honey was placed in a pressure vessel, and then air was removed. Then, the honey was slightly heated at 30°C and the water content before and after the experiment was measured by a refractometer. The steps were repeated until the water content reached below 20%. It was found that the LTVD method improved the water removal rate significantly with an average of 0.15% of water content per minute. That is 3 times much faster than the conventional method of low temperature heating by Tabouret. Higher temperature during dewatering process improved the dewatering rate significantly. It can be concluded that LTVD is a promising option in tackling the high water content in stingless bee honey issue.

  12. Irradiation Effects on the Decontamination of Microorganisms in Honey

    International Nuclear Information System (INIS)

    Jo, Cheorun; Kim, Jae Kyung; Kang, Ho Jin; Lee Eun Young; Byun, Myung Woo

    2005-09-01

    Honey is usually contaminated with numerous microorganisms. Especially, the presence of the spore of Clostridium in honey is dangerous to infants and small children. To determine the effect of a gamma irradiation on the microorganisms in honey, our kinds of honeys (acacia flower, poly floral flower, native A, and native B) were irradiated (0, 5, and 10 kGy) and the total aerobic bacterial count, yeasts and molds, coliform, and Clostridium spp. were detected. In all the honeys, the coliform bacterial, yeast and molds counts were below. The limit of detection (< 101 cfu/g). Total aerobic bacterial and Clostridium spp counts ranged from 85 to 450 cfu/g and 0 to 450 cfu/g in the samples respectively. Acacia and poly floral flower honey were completely sterilized by a 5 kGy irradiation, and both the native honey A and B showed decreased populations of the total aerobic bacteria and Clostridium spp. with a 5 kGy irradiation. Therefore it is concluded that an irradiation treatment could be an effective tool to disinfect honey

  13. Potential Role of Honey in Learning and Memory

    Directory of Open Access Journals (Sweden)

    Zahiruddin Othman

    2015-04-01

    Full Text Available The composition and physicochemical properties of honey are variable depending on its floral source and often named according to the geographical location. The potential medicinal benefits of Tualang honey, a multifloral jungle honey found in Malaysia, have recently been attracting attention because of its reported beneficial effects in various diseases. This paper reviews the effects of honey, particularly Tualang honey, on learning and memory. Information regarding the effects of Tualang honey on learning and memory in human as well as animal models is gleaned to hypothesize its underlying mechanisms. These studies show that Tualang honey improves morphology of memory-related brain areas, reduces brain oxidative stress, increases brain-derived neurotrophic factor (BDNF and acetylcholine (ACh concentrations, and reduces acetylcholinesterase (AChE in the brain homogenates. Its anti-inflammatory roles in reducing inflammatory trigger and microglial activation have yet to be investigated. It is hypothesized that the improvement in learning and memory following Tualang honey supplementation is due to the significant improvement in brain morphology and enhancement of brain cholinergic system secondary to reduction in brain oxidative damage and/or upregulation of BDNF concentration. Further studies are imperative to elucidate the molecular mechanism of actions.

  14. In vitro assessment of the antimicrobial potential of honey on ...

    African Journals Online (AJOL)

    Background: Honey produced by honeybees (Apis mellifera) is one of the ancient traditional medicines used for treatment and prevention of various illnesses. Objective: To assess the antimicrobial potential of honey on some common bacterial pathogen. Methods: This experimental study was conducted in Jimma University ...

  15. Improving honey production in worker bees (Apis mellifera adansoni ...

    African Journals Online (AJOL)

    Modification of feeding activity, nursing care and undertaker behaviour were carried out among some colonies of honey bees Apis mellifera adansoni L to know the effect on honey production. Apiaries Numbers 1, 2 and 3 contain three replicates of experimental hives while apiary Number 4 contains control hives. All the ...

  16. Occurrence of Nosema species in honey bee colonies in Kenya ...

    African Journals Online (AJOL)

    While honey bee colonies in North America and Europe are in decline due to parasites and ... Infections levels were higher in the coastal region than in the interior. ... of the impact of this pathogen to the Kenyan honey bee colonies with a view of ... Senegal (6); Sierra Leone (1); South Africa (96); South Sudan (1); Sudan (3) ...

  17. Honey beekeeping and livelihoods prospects related to fair trade in ...

    African Journals Online (AJOL)

    Oku's White Honey has been produced for generations in the Kilum-Ijim forest, North-West region of Cameroon. Its white colour and creamy texture are bestowed by special mountainous plants, especially Schefflera abyssinica and Nuxia congesta. This honey is produced in a remote rural area where beekeeping is an ...

  18. Neurological Effects of Honey: Current and Future Prospects

    Directory of Open Access Journals (Sweden)

    Mohammad Mijanur Rahman

    2014-01-01

    Full Text Available Honey is the only insect-derived natural product with therapeutic, traditional, spiritual, nutritional, cosmetic, and industrial value. In addition to having excellent nutritional value, honey is a good source of physiologically active natural compounds, such as polyphenols. Unfortunately, there are very few current research projects investigating the nootropic and neuropharmacological effects of honey, and these are still in their early stages. Raw honey possesses nootropic effects, such as memory-enhancing effects, as well as neuropharmacological activities, such as anxiolytic, antinociceptive, anticonvulsant, and antidepressant activities. Research suggests that the polyphenol constituents of honey can quench biological reactive oxygen species and counter oxidative stress while restoring the cellular antioxidant defense system. Honey polyphenols are also directly involved in apoptotic activities while attenuating microglia-induced neuroinflammation. Honey polyphenols are useful in improving memory deficits and can act at the molecular level. Therefore, the ultimate biochemical impact of honey on specific neurodegenerative diseases, apoptosis, necrosis, neuroinflammation, synaptic plasticity, and behavior-modulating neural circuitry should be evaluated with appropriate mechanistic approaches using biochemical and molecular tools.

  19. Invasion of Varroa mites into honey bee brood cells

    NARCIS (Netherlands)

    Boot, W.J.

    1995-01-01

    The parasitic mite Varroa-jacobsoni is one of the most serious pests of Western honey bees, Apis mellifera. The mites parasitize adult bees, but reproduction only occurs while parasitizing on honey bee brood. Invasion into a

  20. Honey physicochemical properties of three species of the Brazilian Melipona.

    Science.gov (United States)

    Lage, Lorena G A; Coelho, Lívia L; Resende, Helder C; Tavares, Mara G; Campos, Lucio A O; Fernandes-Salomão, Tânia M

    2012-09-01

    Physicochemical analyses were carried out to evaluate 27 samples of honeys from three species of the Brazilian genus Melipona (M. capixaba, M. rufiventris and M. mondury) from Espírito Santo and Minas Gerais States. The parameters water activity (Aw), percentage of soluble solids (Brix %), pH, acidity (meq/Kg) and moisture (%) were evaluated. The honey characteristics obtained from these samples were very similar to the ones from other Melipona species. However, regarding the honey from Apis (honey bee), only the pH values were similar. The low pH value and the high acidity detected in Melipona honey are potential factors for increasing the honey shelf life because they do not provide favorable conditions for the microbial development. On the other hand, the high level of water activity favors the growth of microorganisms, especially yeast, which demands a more careful handled and storage. The observed differences between Melipona and Apis honey reinforce the need for specific quality settings for stingless bee honey.

  1. Physico-chemical properties of honeys produced by two stingless ...

    African Journals Online (AJOL)

    Calcium (Ca), phosphorus (P) and sodium (Na) contents were 25.43%, 0.76%, and 12.67% for Trigona carbonaria honey and 26.51%, 1.03% and 11.96% for Melipona beecheii .The fructose, glucose, reducing sugar, higher sugar, sucrose and calorific value contents of Trigona carbonaria honey were 37.25%, 31.64%, ...

  2. Effect of Honey as Partial Sugar Substitute on Pasting Properties ...

    African Journals Online (AJOL)

    The effect of partial substitution of sugar with liquid honey on the pasting properties of cooked dough made from cassava-wheat composite (10:90) flour as well as the sensory preference and shelf stability of its bread was investigated. Sucrose (S) in the bread recipe formulation was substituted with honey (H) at levels 0, 10, ...

  3. perceptions and adaptations of beekeepers and honey hunters

    African Journals Online (AJOL)

    Prof. Adipala Ekwamu

    honey sector (i.e. honey hunters) to climate change are, however, not adequately explored. The objective of .... The statistical software SPSS Version 16 was used for this purpose. ... content analysis is an effort of interpretation, that balances ... FORM. Discontinue. N o = 0 ; Yes = 1. ±. Creditavability. CRED. Discontinue. N.

  4. Flavonoids patterns of French honeys with different floral origin

    NARCIS (Netherlands)

    Soler, C.; Gil, M.I.; Garcia-Viguera, C.; Tomás-Barberán, F.A.

    1995-01-01

    The flavonoid profiles of 12 different unifloral French honey samples were analysed by HPLC to evaluate if these substances could be used as markers of the floral origin of honey. In this analysis, the characteristic flavonoids from propolis and/or beeswax (chrysin, galangin, tectochrysin,

  5. Honey: an effective regenerative medicine product in wound management.

    Science.gov (United States)

    Martinotti, Simona; Bucekova, Marcela; Majtan, Juraj; Ranzato, Elia

    2018-05-10

    Honey has successfully been used in treatment of a broad spectrum of injuries including burns and non-healing wounds. It acts as antibacterial and anti-biofilm agent with anti/pro-inflammatory properties. However, besides these traditional properties, recent evidence suggests that honey is also an immunomodulator in wound healing and contains several bee and plant-derived components that may speed up the wound healing and tissue regeneration process. Identifying their exact mechanism of action allows better understanding of honey healing properties and promotes its wider translation into clinical practice. This review will discuss the physiological basis for the use of honey in wound management, its current clinical uses, as well as the potential role of honey bioactive compounds in dermal regenerative medicine and tissue re-modelling. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

  6. Physico-Chemical Evaluation of Honey Fortified with Oleaginous Seeds

    Directory of Open Access Journals (Sweden)

    Ariana Bianca Velciov

    2014-11-01

    Full Text Available This research followed to achieve some natural-fortified food, based on honey and oleaginous fruits. Honey and oleaginous fruits are extremely valuable for human diet. With their rich nutrient content, new products obtained by mixing honey with seeds may be considered both traditional food with high nutritional value as well as fortified food. The samples were constituted from acacia flowers honey bought directly from the producer, to which were added various quantities of oleaginous fruits (seeds. Thus, we obtained 3 different types of fortified honey, using pumpkin seeds, sunflower seeds and hemp seeds. Samples obtained were stored in appropriate conditions. From these samples, were made analytical tests: ascorbic acid and humidity.

  7. Physicochemical study of some types of Algerian honeys

    Directory of Open Access Journals (Sweden)

    Djahida. Nabti

    2016-09-01

    Full Text Available The modern bee-keeping proposes various types of honeys of floral and geographical origin, of very varied savor and aspect. It is often the only source of sugar of the most withdrawn indigenous populations of the tropical forests. Good for health, honey is also for the environment. The present manuscript is to determine its physicochemical characteristics, six types of samples were collected in various areas of the East of Algeria. These honeys are analyzed for the determination of the pH, the water content, electric conductivity, the ashes content, acidity, and the content of hydroxyl methylfurfural (HMF, the index of diastase (I.D. The results showed that there were differences of a honeys samples to the other and they which they all answer almost the international norms. The physicochemical analyzes studied is to control quality of Algerian honey who is considered an indicator of the environmental pollution.

  8. Händel- Italian Cantatas

    OpenAIRE

    Larjamo, Suvi

    2010-01-01

    Työni tarkoituksena oli esitellä kaksi Händelin hyvin erilaista ja harvoin esitettyä kantaatti hänen Italian-ajaltaan, sekä tulkita erilaisia affekteja, joita kantaateista löytyi. Valitsemani kantaatit olivat: Tra le fiamme, sekä Dietro l’ormi fugaci (Armida abbandonata). Tutkimuksessa selvitin säveltäjän elämää kantaattien sävellysvuosina ja perehdyin asioihin, jotka mielestäni ovat vaikuttaneet teosten syntyyn, sekä asioihin, jotka auttoivat minua tulkitsemaan hänen musiikkiaan paremmin. ...

  9. Competition Advocacy: the Italian Experience

    Directory of Open Access Journals (Sweden)

    Salvatore Rebecchini

    2014-07-01

    Full Text Available Competition advocacy is considered, together with enforcement, the core business of an antitrust authority. Broadly speaking there are at least three main tasks regularly performed by most, if not all, antitrust agencies that are amenable to the advocacy function: addressing laws and regulations in order to remove unnecessary impediments to competition; engaging in sector enquiries to understand markets behavior and identify critical issues; explaining the benefits of open competitive markets to the public opinion. This article examines these three main tasks and outlines the challenges for competition agencies, with references to the experience of the Italian Competition Authority (ICA and the initiatives undertaken at international level.

  10. Status report on Italian activities

    International Nuclear Information System (INIS)

    Tavoni, R.

    1999-01-01

    The main features of the Italian energy supply situation is shown. Primary energy demand increased by 2.7% while the total final consumption was mainly attributed to industry, transport, household and services. Nuclear activities of ENEL were related mostly to nuclear fuel cycle, i.e. processing and disposal of nuclear waste from phased out nuclear power plants. The following nine research programs were foreseen: proton source; low and medium energy accelerator section; high energy accelerator section; neutron production for material characterization; general safety criteria and classification; neutronics and transmutation efficiency; thermal-hydraulic analysis; beam window technology; materials technology

  11. Microwave processing of honey negatively affects honey antibacterial activity by inactivation of bee-derived glucose oxidase and defensin-1.

    Science.gov (United States)

    Bucekova, Marcela; Juricova, Valeria; Monton, Enrique; Martinotti, Simona; Ranzato, Elia; Majtan, Juraj

    2018-02-01

    Microwave (MW) thermal heating has been proposed as an efficient method for honey liquefaction, while maintaining honey quality criteria. However, little is known about the effects of MW thermal heating on honey antibacterial activity. In this study, we aimed to determine the effects of MW heating on the antibacterial activity of raw rapeseed honeys against Pseudomonas aeruginosa and Staphylococcus aureus, with a particular focus on two major bee-derived antibacterial components, defensin-1 and hydrogen peroxide (H 2 O 2 ). Our results demonstrated that MW thermal heating completely abolished honey antibacterial activity whereas conventional thermal treatment at 45 and 55°C did not affect the antibacterial activity of honey samples. A significant decrease in both glucose oxidase activity and H 2 O 2 production as well as defensin-1 amount was observed in MW-treated samples. Given that defensin-1 and H 2 O 2 are regular antibacterial components of all honeys, MW heating may have similar negative effects on every type of crystallized/liquid honey. Copyright © 2017 Elsevier Ltd. All rights reserved.

  12. Chinese sacbrood virus infection in Asian honey bees (Apis cerana cerana) and host immune responses to the virus infection

    Science.gov (United States)

    Chinese Sacbrood virus (CSBV) is a common honey bee virus that infects both the European honey bee (A. mellifera) and the Asian honey bee (A. cerana). However, CSBV has much more devastating effects on Asian honey bees than on European honey bees, posing a serious threat to the agricultural and nat...

  13. 75 FR 55741 - Honey From Argentina: Notice of Extension of Time Limit for Preliminary Results and Partial...

    Science.gov (United States)

    2010-09-14

    ... Naturales-Natural Foods, Alma Pura, Bomare S.A., Compania Apicola Argentina S.A., El Mana S.A., Interrupcion... products covered are natural honey, artificial honey containing more than 50 percent natural honey by weight, preparations of natural honey containing more than 50 percent natural honey by weight, and...

  14. Chasing your honey: Worldwide diaspora of the small hive beetle, a parasite of honey bee colonies

    Science.gov (United States)

    Endemic to sub-Saharan Africa, small hive beetles (Aethina tumida) are now an invasive pest of honey bee colonies in Australia and North America. Knowledge on the introduction(s) from Africa into and between the current ranges will shed light on pest populations, invasion pathways and contribute to ...

  15. Physicochemical and microbiological characteristics of Italian salami ...

    African Journals Online (AJOL)

    The purpose of this study was to evaluate and compare the inclusion of different levels of pequi (Caryocar Brasiliense, Cambess) pulp in the processing of Italian salami made of lamb for the evaluation of their physicochemical and microbiological characteristics. Six formulations of Italian salamis were processed: no pequi ...

  16. European energy policy and Italian industry

    International Nuclear Information System (INIS)

    Cardinale, A.; Verdelli, A.

    2008-01-01

    The competitiveness of the Italian industry is very sensitive to the rising costs of energy. The European energy policy, if intended as an additional constraint, could deteriorate the situation. It could be, however, a good opportunity for the Italian industry to become more independent from fossil fuels, through an innovatory project at country level [it

  17. The Italian Green Certificates market between uncertainty and opportunities

    International Nuclear Information System (INIS)

    Lorenzoni, Arturo

    2003-01-01

    With the overall reform of the electricity industry in 1999, Italy has started the implementation of a new support mechanism for renewable energy sources that is based upon a Green Certificates market. Such certificates will be delivered for 8 years for electricity production to renewable power plants commissioned after 31 March 1999. All the electricity production based on non-renewable energy sources and import have an obligation to cover 2% of its total with Green Certificates. This support mechanism is open to foreign production, but only from countries with reciprocal opportunities for Italian production. The new market has formally started on January 2002, even if some important rules have not yet been defined. This paper describes the new support mechanism, investigates the critical aspects for its activation and shows some possible trends for the quantity of the supplied certificates and their prices in the coming years

  18. Noise exposure in marching bands

    Science.gov (United States)

    Keefe, Joseph

    2005-09-01

    Previous studies involving orchestras have shown that music ensembles can produce hazardous noise levels. There are no similar data for marching bands and pep bands. In order to evaluate the noise levels produced by marching and pep bands, 1/3-octave-band sound-pressure levels were measured while these groups rehearsed and performed. Data were collected while marching with the bands to ensure a realistic environment. Comparing these data to OSHA and NIOSH criteria, marching and pep band exposures often exceed safe values. For typical exposures, OSHA doses range from 11% to 295%, while NIOSH doses range from 35% to 3055%. Exposures that would be considered hazardous in the workplace are common in marching and pep bands; students and band directors should take steps to recognize the risk posed by various instruments and various locations, and should implement hearing conservation efforts.

  19. Epilepsy and vaccinations: Italian guidelines.

    Science.gov (United States)

    Pruna, Dario; Balestri, Paolo; Zamponi, Nelia; Grosso, Salvatore; Gobbi, Giuseppe; Romeo, Antonino; Franzoni, Emilio; Osti, Maria; Capovilla, Giuseppe; Longhi, Riccardo; Verrotti, Alberto

    2013-10-01

    Reports of childhood epilepsies in temporal association with vaccination have had a great impact on the acceptance of vaccination programs by health care providers, but little is known about this possible temporal association and about the types of seizures following vaccinations. For these reasons the Italian League Against Epilepsy (LICE), in collaboration with other Italian scientific societies, has decided to generate Guidelines on Vaccinations and Epilepsy. The aim of Guidelines on Vaccinations and Epilepsy is to present recent unequivocal evidence from published reports on the possible relationship between vaccines and epilepsy in order to provide information about contraindications and risks of vaccinations in patients with epilepsy. The following main issues have been addressed: (1) whether contraindications to vaccinations exist in patients with febrile convulsions, epilepsy, and/or epileptic encephalopathies; and (2) whether any vaccinations can cause febrile seizures, epilepsy, and/or epileptic encephalopathies. Diphtheria-tetanus-pertussis (DTP) vaccination and measles, mumps, and rubella vaccination (MMR) increase significantly the risk of febrile seizures. Recent observations and data about the relationships between vaccination and epileptic encephalopathy show that some cases of apparent vaccine-induced encephalopathy could in fact be caused by an inherent genetic defect with no causal relationship with vaccination. Wiley Periodicals, Inc. © 2013 International League Against Epilepsy.

  20. Italian experience in gasification plants

    International Nuclear Information System (INIS)

    Rinaldi, N.U.

    1991-01-01

    After tracing the historical highlights representing the development of the Fauser (Montecatini) technology based gasification processes for the production of ammonia and methanol, this paper outlines the key design, operation and performance characteristics of the Montecatini (Italy) process plant for heavy liquid hydrocarbons gasification by means of partial auto-thermal combustion with oxygen. The outline makes evident the technical-economical validity of the Montecatini design solutions which include energy recovery (even the heat dispersed through the gasifier walls is recovered and utilized to produce low pressure steam to preheat the fuel oil); reduced oxygen consumption by the high temperature preheating of all reagents; the ecologically compatible elimination of gas black; as well as, desulfurization with materials recovery. The plant process descriptions come complete with flowsheets. While demonstrating that the Italian developed technology is historically well rooted, the Author stresses that the current design versions of Montecatini gasification plants are up to date with innovative solutions, especially, with regard to pollution abatement, and cites the need for a more concerted marketing effort on the part of local industry to help improve the competitiveness of the Italian made product

  1. Antimicrobial properties of natural honey: a review of literature

    International Nuclear Information System (INIS)

    Aurongzeb, M.; Azim, M.K.

    2011-01-01

    Health benefits of honey have been reported in a variety of conditions including microbial infections, wound healing, inflammation, glucose tolerance and analgesia. Honey is a supersaturated sugar solution mainly comprised of D-fructose, D-glucose, sucrose, maltose and higher sugars (80% of solid mass). While other natural products i.e. alkaloids, flavonoids/isoflavones, glycosides, phenolics, peptides/proteins are present in minor quantities. A number of enzymes such as invertase, amylase and glucose oxidase have been found in honey. Antibacterial and antifungal activities of honey are well documented and characterized. These antimicrobial properties have been related to oligosaccharides, glycopeptides and peptides present in honey. Honey glucose oxidase provides a continuous and slow release of hydrogen peroxide at a level which is antibacterial but not tissue-damaging. Hydrogen peroxide produced by glucose oxidase plays important roles in inflammation, wound healing etc. The antimicrobial properties of honey have great potential for application in medicine as well as in food industry. (author)

  2. RNAi and Antiviral Defense in the Honey Bee

    Science.gov (United States)

    Brutscher, Laura M.; Flenniken, Michelle L.

    2015-01-01

    Honey bees play an important agricultural and ecological role as pollinators of numerous agricultural crops and other plant species. Therefore, investigating the factors associated with high annual losses of honey bee colonies in the US is an important and active area of research. Pathogen incidence and abundance correlate with Colony Collapse Disorder- (CCD-) affected colonies in the US and colony losses in the US and in some European countries. Honey bees are readily infected by single-stranded positive sense RNA viruses. Largely dependent on the host immune response, virus infections can either remain asymptomatic or result in deformities, paralysis, or death of adults or larvae. RNA interference (RNAi) is an important antiviral defense mechanism in insects, including honey bees. Herein, we review the role of RNAi in honey bee antiviral defense and highlight some parallels between insect and mammalian immune systems. A more thorough understanding of the role of pathogens on honey bee health and the immune mechanisms bees utilize to combat infectious agents may lead to the development of strategies that enhance honey bee health and result in the discovery of additional mechanisms of immunity in metazoans. PMID:26798663

  3. Antimicrobial and antioxidant activity of natural honeys of different origin

    Directory of Open Access Journals (Sweden)

    Miartina Fikselová

    2014-10-01

    Full Text Available To examine the antimicrobial and antioxidant activity of 15 natural honeys, honey samples were collected from different locations of Slovakia, Poland and Serbia. For antimicrobial activity determination honey solutions were prepared at three concentrations: 50, 25 and 12.5 % (by mass per volume. The potential antimicrobial activity of  selected samples against four species of bacteria (Escherichia coli CCM 3988, Pseudomonas aeroginosa CCM 1960, Staphylococcus epidermis CCM 4418, Bacillus cereus CCM 2010 and two species of yeasts (Saccharomyces cerevisiae CCM 8191, Candida albicans CCM 8216 was studied using the disc diffusion method. After incubation, the zones of inhibition of the growth of the microorganisms around the disks were measured. The strongest antimicrobial activity was shown at honey samples of 50 % concentration against Escherichia coli, Pseudomonas aeroginosa and Staphylococcus epidermis. Against Saccharomyces cerevisae and Candida albicans very low (at 50 %, 25 % concentration or zero antifugal (at 12.5 % concentration activity was determined. From the results obtained it was shown the variable ability of honey samples to scavenge stable free radical DPPH. TEACDPPH values ranged between 0.1-1.0 mmol.kg-1. As the antioxidative best source buckwheat honey was manifested and the lowest antioxidant activity was shown at acacia honey.

  4. RNAi and Antiviral Defense in the Honey Bee

    Directory of Open Access Journals (Sweden)

    Laura M. Brutscher

    2015-01-01

    Full Text Available Honey bees play an important agricultural and ecological role as pollinators of numerous agricultural crops and other plant species. Therefore, investigating the factors associated with high annual losses of honey bee colonies in the US is an important and active area of research. Pathogen incidence and abundance correlate with Colony Collapse Disorder- (CCD- affected colonies in the US and colony losses in the US and in some European countries. Honey bees are readily infected by single-stranded positive sense RNA viruses. Largely dependent on the host immune response, virus infections can either remain asymptomatic or result in deformities, paralysis, or death of adults or larvae. RNA interference (RNAi is an important antiviral defense mechanism in insects, including honey bees. Herein, we review the role of RNAi in honey bee antiviral defense and highlight some parallels between insect and mammalian immune systems. A more thorough understanding of the role of pathogens on honey bee health and the immune mechanisms bees utilize to combat infectious agents may lead to the development of strategies that enhance honey bee health and result in the discovery of additional mechanisms of immunity in metazoans.

  5. Wild bees enhance honey bees’ pollination of hybrid sunflower

    Science.gov (United States)

    Greenleaf, Sarah S.; Kremen, Claire

    2006-01-01

    Pollinators are required for producing 15–30% of the human food supply, and farmers rely on managed honey bees throughout the world to provide these services. Yet honey bees are not always the most efficient pollinators of all crops and are declining in various parts of the world. Crop pollination shortages are becoming increasingly common. We found that behavioral interactions between wild and honey bees increase the pollination efficiency of honey bees on hybrid sunflower up to 5-fold, effectively doubling honey bee pollination services on the average field. These indirect contributions caused by interspecific interactions between wild and honey bees were more than five times more important than the contributions wild bees make to sunflower pollination directly. Both proximity to natural habitat and crop planting practices were significantly correlated with pollination services provided directly and indirectly by wild bees. Our results suggest that conserving wild habitat at the landscape scale and altering selected farm management techniques could increase hybrid sunflower production. These findings also demonstrate the economic importance of interspecific interactions for ecosystem services and suggest that protecting wild bee populations can help buffer the human food supply from honey bee shortages. PMID:16940358

  6. Wild bees enhance honey bees' pollination of hybrid sunflower.

    Science.gov (United States)

    Greenleaf, Sarah S; Kremen, Claire

    2006-09-12

    Pollinators are required for producing 15-30% of the human food supply, and farmers rely on managed honey bees throughout the world to provide these services. Yet honey bees are not always the most efficient pollinators of all crops and are declining in various parts of the world. Crop pollination shortages are becoming increasingly common. We found that behavioral interactions between wild and honey bees increase the pollination efficiency of honey bees on hybrid sunflower up to 5-fold, effectively doubling honey bee pollination services on the average field. These indirect contributions caused by interspecific interactions between wild and honey bees were more than five times more important than the contributions wild bees make to sunflower pollination directly. Both proximity to natural habitat and crop planting practices were significantly correlated with pollination services provided directly and indirectly by wild bees. Our results suggest that conserving wild habitat at the landscape scale and altering selected farm management techniques could increase hybrid sunflower production. These findings also demonstrate the economic importance of interspecific interactions for ecosystem services and suggest that protecting wild bee populations can help buffer the human food supply from honey bee shortages.

  7. Climate change: impact on honey bee populations and diseases.

    Science.gov (United States)

    Le Conte, Y; Navajas, M

    2008-08-01

    The European honey bee, Apis mellifera, is the most economically valuable pollinator of agricultural crops worldwide. Bees are also crucial in maintaining biodiversity by pollinating numerous plant species whose fertilisation requires an obligatory pollinator. Apis mellifera is a species that has shown great adaptive potential, as it is found almost everywhere in the world and in highly diverse climates. In a context of climate change, the variability of the honey bee's life-history traits as regards temperature and the environment shows that the species possesses such plasticity and genetic variability that this could give rise to the selection of development cycles suited to new environmental conditions. Although we do not know the precise impact of potential environmental changes on honey bees as a result of climate change, there is a large body of data at our disposal indicating that environmental changes have a direct influence on honey bee development. In this article, the authors examine the potential impact of climate change on honey bee behaviour, physiology and distribution, as well as on the evolution of the honey bee's interaction with diseases. Conservation measures will be needed to prevent the loss of this rich genetic diversity of honey bees and to preserve ecotypes that are so valuable for world biodiversity.

  8. Phenolic acid composition and antioxidant properties of Malaysian honeys.

    Science.gov (United States)

    Khalil, M I; Alam, N; Moniruzzaman, M; Sulaiman, S A; Gan, S H

    2011-08-01

    The phenolic acid and flavonoid contents of Malaysian Tualang, Gelam, and Borneo tropical honeys were compared to those of Manuka honey. Ferric reducing/antioxidant power assay (FRAP) and the 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical-scavenging activities were also quantified. All honey extracts exhibited high phenolic contents (15.21 ± 0.51- 42.23 ± 0.64 mg/kg), flavonoid contents (11.52 ± 0.27- 25.31 ± 0.37 mg/kg), FRAP values (892.15 ± 4.97- 363.38 ± 10.57 μM Fe[II]/kg), and high IC₅₀ of DPPH radical-scavenging activities (5.24 ± 0.40- 17.51 ± 0.51 mg/mL). Total of 6 phenolic acids (gallic, syringic, benzoic, trans-cinnamic, p-coumaric, and caffeic acids) and 5 flavonoids (catechin, kaempferol, naringenin, luteolin, and apigenin) were identified. Among the Malaysian honey samples, Tualang honey had the highest contents of phenolics, and flavonoids, and DPPH radical-scavenging activities. We conclude that among Malaysian honey samples, Tualang honey is the richest in phenolic acids, and flavonoid compounds, which have strong free radical-scavenging activities. © 2011 Institute of Food Technologists®

  9. Saccharide breakdown and fermentation by the honey bee gut microbiome.

    Science.gov (United States)

    Lee, Fredrick J; Rusch, Douglas B; Stewart, Frank J; Mattila, Heather R; Newton, Irene L G

    2015-03-01

    The honey bee, the world's most important agricultural pollinator, relies exclusively on plant-derived foods for nutrition. Nectar and pollen collected by honey bees are processed and matured within the nest through the activities of honey bee-derived microbes and enzymes. In order to better understand the contribution of the microbial community to food processing in the honey bee, we generated a metatranscriptome of the honey bee gut microbiome. The function of the microbial community in the honey bee, as revealed by metatranscriptome sequencing, resembles that of other animal guts and food-processing environments. We identified three major bacterial classes that are active in the gut (γ-Proteobacteria, Bacilli and Actinobacteria), all of which are predicted to participate in the breakdown of complex macromolecules (e.g. polysaccharides and polypeptides), the fermentation of component parts of these macromolecules, and the generation of various fermentation products, such as short-chain fatty acids and alcohol. The ability of the microbial community to metabolize these carbon-rich food sources was confirmed through the use of community-level physiological profiling. Collectively, these findings suggest that the gut microflora of the honey bee harbours bacterial members with unique roles, which ultimately can contribute to the processing of plant-derived food for colonies. © 2014 Society for Applied Microbiology and John Wiley & Sons Ltd.

  10. Honey bee nest thermoregulation: diversity promotes stability.

    Science.gov (United States)

    Jones, Julia C; Myerscough, Mary R; Graham, Sonia; Oldroyd, Benjamin P

    2004-07-16

    A honey bee colony is characterized by high genetic diversity among its workers, generated by high levels of multiple mating by its queen. Few clear benefits of this genetic diversity are known. Here we show that brood nest temperatures in genetically diverse colonies (i.e., those sired by several males) tend to be more stable than in genetically uniform ones (i.e., those sired by one male). One reason this increased stability arises is because genetically determined diversity in workers' temperature response thresholds modulates the hive-ventilating behavior of individual workers, preventing excessive colony-level responses to temperature fluctuations.

  11. Floral markers of strawberry tree (Arbutus unedo L.) honey.

    Science.gov (United States)

    Tuberoso, Carlo I G; Bifulco, Ersilia; Caboni, Pierluigi; Cottiglia, Filippo; Cabras, Paolo; Floris, Ignazio

    2010-01-13

    Strawberry tree honey, due to its characteristic bitter taste, is one of the most typical Mediterranean honeys, with Sardinia being one of the largest producers. According to specific chemical studies, homogentisic acid was identified as a possible marker of this honey. This work, based on HPLC-DAD-MS/MS analysis of strawberry tree (Arbutus unedo L.) honeys, previously selected by sensory evaluation and melissopalynological analysis, showed that, in addition to the above-mentioned acid, there were other high levels of substances useful for the botanical classification of this unifloral honey. Two of these compounds were isolated and identified as (+/-)-2-cis,4-trans-abscisic acid (c,t-ABA) and (+/-)-2-trans,4-trans-abscisic acid (t,t-ABA). A third compound, a new natural product named unedone, was characterized as an epoxidic derivative of the above-mentioned acids. Structures of c,t-ABA, t,t-ABA, and unedone were elucidated on the basis of extensive 1D and 2D NMR experiments, as well as HPLC-MS/MS and Q-TOF analysis. In selected honeys the average amounts of c,t-ABA, t,t-ABA, and unedone were 176.2+/-25.4, 162.3+/-21.1, and 32.9+/-7.1 mg/kg, respectively. Analysis of the A. unedo nectar confirmed the floral origin of these compounds found in the honey. Abscisic acids were found in other unifloral honeys but not in such high amount and with a constant ratio of about 1:1. For this reason, besides homogentisic acid, these compounds could be used as complementary markers of strawberry tree honey.

  12. Current knowledge of detoxification mechanisms of xenobiotic in honey bees.

    Science.gov (United States)

    Gong, Youhui; Diao, Qingyun

    2017-01-01

    The western honey bee Apis mellifera is the most important managed pollinator species in the world. Multiple factors have been implicated as potential causes or factors contributing to colony collapse disorder, including honey bee pathogens and nutritional deficiencies as well as exposure to pesticides. Honey bees' genome is characterized by a paucity of genes associated with detoxification, which makes them vulnerable to specific pesticides, especially to combinations of pesticides in real field environments. Many studies have investigated the mechanisms involved in detoxification of xenobiotics/pesticides in honey bees, from primal enzyme assays or toxicity bioassays to characterization of transcript gene expression and protein expression in response to xenobiotics/insecticides by using a global transcriptomic or proteomic approach, and even to functional characterizations. The global transcriptomic and proteomic approach allowed us to learn that detoxification mechanisms in honey bees involve multiple genes and pathways along with changes in energy metabolism and cellular stress response. P450 genes, is highly implicated in the direct detoxification of xenobiotics/insecticides in honey bees and their expression can be regulated by honey/pollen constitutes, resulting in the tolerance of honey bees to other xenobiotics or insecticides. P450s is also a key detoxification enzyme that mediate synergism interaction between acaricides/insecticides and fungicides through inhibition P450 activity by fungicides or competition for detoxification enzymes between acaricides. With the wide use of insecticides in agriculture, understanding the detoxification mechanism of insecticides in honey bees and how honeybees fight with the xenobiotis or insecticides to survive in the changing environment will finally benefit honeybees' management.

  13. Chemical Composition of Different Botanical Origin Honeys Produced by Sicilian Black Honeybees (Apis mellifera ssp. sicula).

    Science.gov (United States)

    Mannina, Luisa; Sobolev, Anatoly P; Di Lorenzo, Arianna; Vista, Silvia; Tenore, Gian Carlo; Daglia, Maria

    2015-07-01

    In 2008 a Slow Food Presidium was launched in Sicily (Italy) for an early warning of the risk of extinction of the Sicilian native breed of black honeybee (Apis mellifera L. ssp sicula). Today, the honey produced by these honeybees is the only Sicilian honey produced entirely by the black honeybees. In view of few available data regarding the chemical composition of A. mellifera ssp. sicula honeys, in the present investigation the chemical compositions of sulla honey (Hedysarum coronarium L.) and dill honey (Anethum graveolens L.) were studied with a multimethodological approach, which consists of HPLC-PDA-ESI-MSn and NMR spectroscopy. Moreover, three unifloral honeys (lemon honey (obtained from Citrus limon (L.) Osbeck), orange honey (Citrus arantium L.), and medlar honey (Eriobotrya japonica (Thunb.) Lindl)), with known phenol and polyphenol compositions, were studied with NMR spectroscopy to deepen the knowledge about sugar and amino acid compositions.

  14. Genetic detection and quantification of Nosema apis and N. ceranae in the honey bee.

    Science.gov (United States)

    Bourgeois, A Lelania; Rinderer, Thomas E; Beaman, Lorraine D; Danka, Robert G

    2010-01-01

    The incidence of nosemosis has increased in recent years due to an emerging infestation of Nosema ceranae in managed honey bee populations in much of the world. A real-time PCR assay was developed to facilitate detection and quantification of both Nosema apis and N. ceranae in both single bee and pooled samples. The assay is a multiplexed reaction in which both species are detected and quantified in a single reaction. The assay is highly sensitive and can detect single copies of the target sequence. Real-time PCR results were calibrated to spore counts generated by standard microscopy procedures. The assay was used to assess bees from commercial apiaries sampled in November 2008 and March 2009. Bees from each colony were pooled. A large amount of variation among colonies was evident, signifying the need to examine large numbers of colonies. Due to sampling constraints, a subset of colonies (from five apiaries) was sampled in both seasons. In November, N. apis levels were 1212+/-148 spores/bee and N. ceranae levels were 51,073+/-31,155 spores/bee. In March, no N. apis was detected, N. ceranae levels were 11,824+/-6304 spores/bee. Changes in N. ceranae levels were evident among apiaries, some increasing and other decreasing. This demonstrates the need for thorough sampling of apiaries and the need for a rapid test for both detection and quantification of both Nosema spp. This assay provides the opportunity for detailed study of disease resistance, infection kinetics, and improvement of disease management practices for honey bees.

  15. Comparison of the Antimicrobial Activities of Four Honeys From Three Countries (New Zealand, Cuba, and Kenya

    Directory of Open Access Journals (Sweden)

    Gianluca Morroni

    2018-06-01

    Full Text Available Skin and chronic wound infections are an increasing and urgent health problem worldwide. Their management is difficult and the development of antibiotic resistance by both planktonic and biofilm-associated bacteria necessitates the use of alternative treatments. The purpose of this study was to compare the antimicrobial activity of four honeys from different floral and geographical origins: Melipona beecheii honey (Cuba and three Apis mellifera honeys [Manuka honey (New Zealand, A. mellifera honey (Cuba, and African honey (Kenya]. The physicochemical parameters were within the ranges reported for these honeys and M. beecheii honey stood out due to its acidic character. An agar incorporation technique was used to determine the minimum active dilution of each honey against 52 clinical isolates (34 Gram-positive, 17 Gram-negative, and 1 Candida albicans. The antibiofilm activity of honeys was tested by assessing their ability to inhibit biofilm formation and to disrupt preformed biofilms. Overall, M. beecheii honey had the highest antimicrobial and antibiofilm activity, although a marked disruption in preformed biofilms was shared by all tested honeys. Structural changes induced by M. beecheii honey on Staphylococcus aureus and Pseudomonas aeruginosa cells were observed by transmission electron microscopy suggesting that this honey has a potent antimicrobial action and may be an excellent candidate for the development of topical preparations for the treatment of infected wounds.

  16. Wild Honey Inhibits Growth od Some Phytopathogenic Fungi in vitro

    Directory of Open Access Journals (Sweden)

    K.I. Al-Mughrabi

    2003-12-01

    Full Text Available Wild honey was diluted to 1000 ppm with sterile distilled water and tested in vitro for inhibition of the plant pathogenic fungi Fusarium oxysporum, Rhizoctonia solani, Alternaria solani, Stemphylium solani, Colletotrichum sp., and Phytophthora infestans. Wild honey was effective against all these fungi, particularly A. solani and P. infestans, the causal agents of early and late blight diseases respectively; also against R. solani and F. oxysporum, and to a less extent against S. solani and Colletotrichum sp. This is the first report on the inhibiting effect of wild honey against plant pathogenic fungi.

  17. REVIEW: The Diversity of Indigenous Honey Bee Species of Indonesia

    Directory of Open Access Journals (Sweden)

    SOESILAWATI HADISOESILO

    2001-01-01

    Full Text Available It has been known that Indonesia has the most diverse honey bee species in the world. At least five out of nine species of honey bees are native to Indonesia namely Apis andreniformis, A. dorsata, A. cerana, A. koschevnikovi, and A. nigrocincta. One species, A. florea, although it was claimed to be a species native to Indonesia, it is still debatable whether it is really found in Indonesia or not. The new species, A. nuluensis, which is found in Sabah, Borneo is likely to be found in Kalimantan but it has not confirmed yet. This paper discusses briefly the differences among those native honey bees.

  18. Widespread occurrence of honey bee pathogens in solitary bees.

    Science.gov (United States)

    Ravoet, Jorgen; De Smet, Lina; Meeus, Ivan; Smagghe, Guy; Wenseleers, Tom; de Graaf, Dirk C

    2014-10-01

    Solitary bees and honey bees from a neighbouring apiary were screened for a broad set of putative pathogens including protists, fungi, spiroplasmas and viruses. Most sampled bees appeared to be infected with multiple parasites. Interestingly, viruses exclusively known from honey bees such as Apis mellifera Filamentous Virus and Varroa destructor Macula-like Virus were also discovered in solitary bees. A microsporidium found in Andrena vaga showed most resemblance to Nosema thomsoni. Our results suggest that bee hives represent a putative source of pathogens for other pollinators. Similarly, solitary bees may act as a reservoir of honey bee pathogens. Copyright © 2014 Elsevier Inc. All rights reserved.

  19. Two Novel Strains of Torulaspora delbrueckii Isolated from the Honey Bee Microbiome and Their Use in Honey Fermentation

    Directory of Open Access Journals (Sweden)

    Joseph P. Barry

    2018-03-01

    Full Text Available Yeasts are ubiquitous microbes found in virtually all environments. Many yeast species can ferment sugar into ethanol and CO2, and humans have taken advantage of these characteristics to produce fermented beverages for thousands of years. As a naturally abundant source of fermentable sugar, honey has had a central role in such fermentations since Neolithic times. However, as beverage fermentation has become industrialized, the processes have been streamlined, including the narrow and almost exclusive usage of yeasts in the genus Saccharomyces for fermentation. We set out to identify wild honey- or honey-bee-related yeasts that can be used in honey fermentation. Here, we isolated two strains of Torulaspora delbrueckii from the gut of a locally collected honey bee. Both strains were able to ferment honey sugar into mead but failed to metabolize more than a modest amount of wort sugar in trial beer fermentations. Further, the meads fermented by the T. delbrueckii strains displayed better sensory characteristics than mead fermented by a champagne yeast. The combination of T. delbrueckii and champagne yeast strains was also able to rapidly ferment honey at an industrial scale. Thus, wild yeasts represent a largely untapped reservoir for the introduction of desirable sensory characteristics in fermented beverages such as mead.

  20. Authentic Italian food as Mamma used to make it!

    DEFF Research Database (Denmark)

    Madsen, Jan Halberg; d'Ambrosio, Luigi

    2015-01-01

    The purpose of this investigation is to explore how Italian restaurants define authentic Italian culinary experiences and how these experiences are designed and rendered to the restaurants’ guests.......The purpose of this investigation is to explore how Italian restaurants define authentic Italian culinary experiences and how these experiences are designed and rendered to the restaurants’ guests....

  1. ALICE honours two Italian suppliers

    CERN Multimedia

    2006-01-01

    During the ALICE week held in Bologna from 19 to 23 June, the Collaboration recognized two of its top suppliers. From left to right: Robert Terpin (MIPOT), Pier Luigi Bellutti (ITC), Andrea Zanotti, President of ITC, Luciano Bosisio (Trieste University), Gennady Zinovjev (Kiev), Catherine Decosse (CERN), Lodovico Riccati, ALICE Collaboration Board Chair (INFN Torino), Paolo Giubellino (INFN Torino), Mario Zen, Director of ITC, Maurizio Boscardin (ITC), Paolo Tonella (ITC), Jurgen Schukraft, ALICE Spokesperson (CERN), Giacomo Vito Margagliotti (Trieste University), Nevio Grion (INFN Trieste), Marco Bregant (INFN Trieste). Front row from left to right: Paolo Traverso (ITC), Federico Carminati, ALICE Computing Project Leader (CERN), and Jean-Robert Lutz, ITS-SSD Project leader (IPHC Strasbourg). It is in the picturesque city of Bologna that the ALICE Collaboration has rewarded two Italian suppliers, Istituto Trentino di Cultura ITC-irst (Trento) and MIPOT (Cormons), both involved in the construction of the Sili...

  2. Cogeneration in Italian agricultural industry

    International Nuclear Information System (INIS)

    Bonfitto, E.; Jacoboni, S.

    1991-01-01

    This paper examines the technical, environmental and economical feasibility of an industrial cogeneration system which incorporates combined gas-steam cycles and a biomass/agricultural waste sludge fired fluidized bed combustion system. It cites the suitability of the use of fluidized bed combustion for the combustion of biomass and agricultural waste sludges - high combustion efficiency, uniform and relatively low combustion temperatures (850 C) within the combustion chamber to reduce scaling, reduced nitrogen oxide and micro-pollutant emissions, the possibility to control exhaust gas acidity through the injection of calcium carbonates, the possibility of the contemporaneous feeding of different fuels. Reference is made to test results obtained with an ENEL (Italian National Electricity Board) pilot plant fired by vineyard wastes. Attention is given to an analysis of the fuel's physical-chemical characteristics and the resulting flue gas chemical composition and ash characteristics. Comparisons are made with legal release limits

  3. March 2011 Tohoku, Japan Images

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The March 11 earthquake generated a devastating tsunami that was observed all over the Pacific and caused tremendous devastation locally, including an accident at...

  4. CERN's new arrivals, March 2004.

    CERN Document Server

    Patrice Loïez

    2004-01-01

    On Tuesday 9 March 2004, representatives of the CERN Management welcomed recently-recruited staff members and fellows at the trimester session of the Induction Programme (photographed here with Werner Zapf, Head of the Human Resources Department).

  5. Energy efficiency: The Italian situation and opportunities

    Energy Technology Data Exchange (ETDEWEB)

    Clerici, Alessandro; Beccarello, Massimo; Gallanti, Massimo

    2010-09-15

    The paper reports the results of a study led by Confindustria (Italian Federation of Industrial Associations) on the Italian situation with respect to energy efficiency policies and their effective implementations. The study is being continuously updated with the contributions of ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development) and ERSE (previously CESI Ricerca) and highlights the obtainable savings through efficient technologies now already available for applications in the final uses of energy for both the industrial, commercial and domestic sectors.

  6. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Weather

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Weather. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that develops...

  7. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, MOSE

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, MOSE. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that develops near...

  8. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Telemetry

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Telemetry. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that develops...

  9. Pyrrolizidine alkaloids in honey: comparison of analytical methods

    NARCIS (Netherlands)

    Kempf, M.; Wittig, M.; Reinhard, A.; Ohe, von der K.; Blacquière, T.; Raezke, K.P.; Michel, R.; Schreier, P.; Beuerle, T.

    2011-01-01

    Pyrrolizidine alkaloids (PAs) are a structurally diverse group of toxicologically relevant secondary plant metabolites. Currently, two analytical methods are used to determine PA content in honey. To achieve reasonably high sensitivity and selectivity, mass spectrometry detection is demanded. One

  10. Challenges associated with the honey bee ( Apis Mellifera Adansonii )

    African Journals Online (AJOL)

    Challenges associated with the honey bee ( Apis Mellifera Adansonii ) colonies ... Diseases like American and European foulbrood were absent while ... African Journal of Food, Agriculture, Nutrition and Development, Volume 13 No. 2 April ...

  11. Study of gamma radiation in honey from the Zacatecas State

    Energy Technology Data Exchange (ETDEWEB)

    Saucedo A, S. A.; Zapata V, M. C.; Pinedo V, J. L.; Davila R, J. I.; Rios M, C.; Mireles G, F., E-mail: ssaucedo@uaz.edu.mx [Universidad Autonoma de Zacatecas, Unidad Academica de Estudios Nucleares, Cipres No. 10, Fracc. La Penuela, 98060 Zacatecas, Zac. (Mexico)

    2017-09-15

    Radioactivity of honey samples from 10 municipalities of the Zacatecas State in Mexico was investigated by gamma spectrometry. The honey corresponds to the prosopis laevigata flowering. The purpose of the study was to estimate the background levels of natural radioactivity and to discard a possible contamination with the artificial {sup 137}Cs in honey. Any naturally occurring radionuclide could be determined except for {sup 40}K, which was quantified in 8 of the 10 samples, with an average in specific activity of 9.75 ± 1.8 Bq/kg. No signal for the energy of the anthropogenic radionuclide {sup 137}Cs was observed, corroborating that the radiation levels are in good agreement with those reported for another honeys in the world. (Author)

  12. chemical characteristic of selected imported and local honey sold

    African Journals Online (AJOL)

    USER

    . Standard for Honey, Rev.2, 24th Session of the Codex Alimentarius, CODEX ROME. CAA, Codigo Alimentario Argentino,(2004). Secretariat de Agricultura, Ganaderia y pesca, Buenos. Aires, Argentina.Fennema, O.R. (2003). Food. Chemistry ...

  13. Economics Of Honey Production In Nigeria: Implications For Poverty ...

    African Journals Online (AJOL)

    Global Approaches to Extension Practice: A Journal of Agricultural Extension ... indicates that honey production is very profitable with a gross income of 890 naira per ... Econometric analysis shows that number of hives, labour and fixed assets ...

  14. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, AIS

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, AIS. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that develops near...

  15. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, CTD

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, CTD. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that develops near...

  16. Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Phytoflash

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Liquid Robotics Wave Glider, Honey Badger (G3), 2015, Phytoflash. The MAGI mission is to use the Wave Glider to sample the late summer chlorophyll bloom that...

  17. Quality parameters of Bulgarian’s kinds of bee honey

    Directory of Open Access Journals (Sweden)

    Dinko Hristov Dinkov

    2014-03-01

    Full Text Available In Bulgaria were found more than 3600 kinds of higher plants, which predispose to production of different kinds of bee honey. In the country were registered 11 natural and 3 national parks, in which could found all kinds of plants, some of them unique in the world. Up to now there were harvested and investigated more than 11 kinds of bee honey. The aim of the present work was on the basis of available literature data to sum up the scientific information related to the main kinds of Bulgarian’s bee honeys from 2000 to present. In the study were presented quality parameters from organically produced and commercially processed bee honeys: pollen analysis, proline content, invertase activity, specific optical rotation, electrical conductivity, antioxidant and antibacterial activities.

  18. Optimization and Validation of kit of detection Antibiotics on Honey

    International Nuclear Information System (INIS)

    Hamza, Malek

    2013-01-01

    According to the Codex Alimentarius and the European Commission Directive each food has a maximum residual antibiotic (MRLs) however, for honey is still no limit set. Among the main methods that guarantee the detection of antibiotic residues include the Premi Test which is a qualitative method for the detection of antibiotics in honey, but it remains a non-specific method for this matrix and long enough (three hours of incubation). Through this work, we were able to develop and optimize a new kit called Honey test. This kit is able to detect the presence of antibiotic residues in honey by a bacterial strain radio-resistant called D.ra. The duration of treatment is only 30 minutes, requiring incubation at 37 Degree C and treatment with UV at 366 nm. This work will be the subject of a national patent.

  19. Effects of honey, glutamine and their combination on canine small ...

    African Journals Online (AJOL)

    olayemitoyin

    and adaptation, evidenced by increased in residual bowel Villi height (27.71µm), ... advantage over glutamine or honey and may be a preferred treatment for short bowel syndrome patients. .... good general health based on complete clinical.

  20. Study of gamma radiation in honey from the Zacatecas State

    International Nuclear Information System (INIS)

    Saucedo A, S. A.; Zapata V, M. C.; Pinedo V, J. L.; Davila R, J. I.; Rios M, C.; Mireles G, F.

    2017-09-01

    Radioactivity of honey samples from 10 municipalities of the Zacatecas State in Mexico was investigated by gamma spectrometry. The honey corresponds to the prosopis laevigata flowering. The purpose of the study was to estimate the background levels of natural radioactivity and to discard a possible contamination with the artificial 137 Cs in honey. Any naturally occurring radionuclide could be determined except for 40 K, which was quantified in 8 of the 10 samples, with an average in specific activity of 9.75 ± 1.8 Bq/kg. No signal for the energy of the anthropogenic radionuclide 137 Cs was observed, corroborating that the radiation levels are in good agreement with those reported for another honeys in the world. (Author)

  1. Online Italian fandoms of American TV shows

    Directory of Open Access Journals (Sweden)

    Eleonora Benecchi

    2015-06-01

    Full Text Available The Internet has changed media fandom in two main ways: it helps fans connect with each other despite physical distance, leading to the formation of international fan communities; and it helps fans connect with the creators of the TV show, deepening the relationship between TV producers and international fandoms. To assess whether Italian fan communities active online are indeed part of transnational online communities and whether the Internet has actually altered their relationship with the creators of the original text they are devoted to, qualitative analysis and narrative interviews of 26 Italian fans of American TV shows were conducted to explore the fan-producer relationship. Results indicated that the online Italian fans surveyed preferred to stay local, rather than using geography-leveling online tools. Further, the sampled Italian fans' relationships with the show runners were mediated or even absent.

  2. The history of Italian psychiatry during Fascism.

    Science.gov (United States)

    Piazzi, Andrea; Testa, Luana; Del Missier, Giovanni; Dario, Mariopaolo; Stocco, Ester

    2011-09-01

    Specific features characterized Italian psychiatry during Fascism (1922-45), distinguishing it from Nazi psychiatry and giving rise to different operational outcomes, so we have investigated the state of Italian psychiatry during this period. We review the historical situation that preceded it and describe the social and health policies that Fascism introduced following new legislative and regulatory acts. We examine the preventive and therapeutic role played by psychiatry (the electric shock was an Italian invention) and, thanks to the Enciclopedia Italiano published during those years, we are able to highlight psychiatry's relationship to psychology, psychoanalysis, philosophy and religion. The shortcomings of Italian psychiatric research and practice are also seen in terms of what the State failed to do rather than what it did.

  3. Semen quality of Italian local pig breeds

    Directory of Open Access Journals (Sweden)

    G. Gandini

    2010-01-01

    Full Text Available From 1996 to 1999 a conservation programme was carried out within the framework of EC contract “European gene banking project for the pig genetic resources” (Ollivier et al., 2001 in the Italian local pig breeds. The aims of the program included the primary characterization of the breeds, i.e. information on the organization in charge of the breed, breeding population numbers, breed description and qualifications, and field trials on productive and reproductive performances. In this context the “Semen Bank of Italian local pig breeds” was built. A total of 30,835 straws of four Italian local pig breeds (Cinta Senese, Casertana, Mora Romagnola and Nero Siciliano, collected from 42 sires, have been stored. In this work semen quality traits, lipid composition and freezability of the four Italian local pig breeds are reported.

  4. Parasite pressures on feral honey bees (Apis mellifera sp..

    Directory of Open Access Journals (Sweden)

    Catherine E Thompson

    Full Text Available Feral honey bee populations have been reported to be in decline due to the spread of Varroa destructor, an ectoparasitic mite that when left uncontrolled leads to virus build-up and colony death. While pests and diseases are known causes of large-scale managed honey bee colony losses, no studies to date have considered the wider pathogen burden in feral colonies, primarily due to the difficulty in locating and sampling colonies, which often nest in inaccessible locations such as church spires and tree tops. In addition, little is known about the provenance of feral colonies and whether they represent a reservoir of Varroa tolerant material that could be used in apiculture. Samples of forager bees were collected from paired feral and managed honey bee colonies and screened for the presence of ten honey bee pathogens and pests using qPCR. Prevalence and quantity was similar between the two groups for the majority of pathogens, however feral honey bees contained a significantly higher level of deformed wing virus than managed honey bee colonies. An assessment of the honey bee race was completed for each colony using three measures of wing venation. There were no apparent differences in wing morphometry between feral and managed colonies, suggesting feral colonies could simply be escapees from the managed population. Interestingly, managed honey bee colonies not treated for Varroa showed similar, potentially lethal levels of deformed wing virus to that of feral colonies. The potential for such findings to explain the large fall in the feral population and the wider context of the importance of feral colonies as potential pathogen reservoirs is discussed.

  5. Urbanization Increases Pathogen Pressure on Feral and Managed Honey Bees

    OpenAIRE

    Youngsteadt, Elsa; Appler, R. Holden; L?pez-Uribe, Margarita M.; Tarpy, David R.; Frank, Steven D.

    2015-01-01

    Given the role of infectious disease in global pollinator decline, there is a need to understand factors that shape pathogen susceptibility and transmission in bees. Here we ask how urbanization affects the immune response and pathogen load of feral and managed colonies of honey bees (Apis mellifera Linnaeus), the predominant economically important pollinator worldwide. Using quantitative real-time PCR, we measured expression of 4 immune genes and relative abundance of 10 honey bee pathogens....

  6. Parasite pressures on feral honey bees (Apis mellifera sp.).

    Science.gov (United States)

    Thompson, Catherine E; Biesmeijer, Jacobus C; Allnutt, Theodore R; Pietravalle, Stéphane; Budge, Giles E

    2014-01-01

    Feral honey bee populations have been reported to be in decline due to the spread of Varroa destructor, an ectoparasitic mite that when left uncontrolled leads to virus build-up and colony death. While pests and diseases are known causes of large-scale managed honey bee colony losses, no studies to date have considered the wider pathogen burden in feral colonies, primarily due to the difficulty in locating and sampling colonies, which often nest in inaccessible locations such as church spires and tree tops. In addition, little is known about the provenance of feral colonies and whether they represent a reservoir of Varroa tolerant material that could be used in apiculture. Samples of forager bees were collected from paired feral and managed honey bee colonies and screened for the presence of ten honey bee pathogens and pests using qPCR. Prevalence and quantity was similar between the two groups for the majority of pathogens, however feral honey bees contained a significantly higher level of deformed wing virus than managed honey bee colonies. An assessment of the honey bee race was completed for each colony using three measures of wing venation. There were no apparent differences in wing morphometry between feral and managed colonies, suggesting feral colonies could simply be escapees from the managed population. Interestingly, managed honey bee colonies not treated for Varroa showed similar, potentially lethal levels of deformed wing virus to that of feral colonies. The potential for such findings to explain the large fall in the feral population and the wider context of the importance of feral colonies as potential pathogen reservoirs is discussed.

  7. Pollution monitoring of puget sound with honey bees.

    Science.gov (United States)

    Bromenshenk, J J; Carlson, S R; Simpson, J C; Thomas, J M

    1985-02-08

    To show that honey bees are effective biological monitors of environmental contaminants over large geographic areas, beekeepers of Puget Sound, Washington, collected pollen and bees for chemical analysis. From these data, kriging maps of arsenic, cadmium, and fluoride were generated. Results, based on actual concentrations of contaminants in bee tissues, show that the greatest concentrations of contaminants occur close to Commencement Bay and that honey bees are effective as large-scale monitors.

  8. Honey As A Bioindicator Of Environmental Radioactive Contamination In Croatia

    International Nuclear Information System (INIS)

    Franic, Z.; Petrinec, B.; Marovic, G.

    2015-01-01

    Radioecological investigations regarding fission products in foodstuffs in Croatia are implemented as part of an extended and still ongoing radioactive contamination monitoring programme of the human environment. The programme has been designed and endorsed by the Croatian State Office for Radiological and Nuclear Security and fully harmonized with European legislation, i.e. the European Commission's recommendation of June 2000 on the application of Article 36 of the Euratom Treaty. For describing the overall possible impact the contaminants have on the entire region, the most efficient sampler would be one that covers the largest area possible. In this sense, honey has been shown to be an excellent biological indicator for detecting radionuclides but also other pollutants such as heavy metals. In Croatia, radiocaesium nuclides like 137Cs and 134Cs in honey were first investigated after the Chernobyl accident in 1986. For both radionuclides, the activity concentrations in honey, which peaked in May 1986, decreased exponentially and the estimated ecological residence time, corrected for radioactive decay, was found to be 1.23 y for 137Cs and 1.07 y for 134Cs. In the early 1990s, activity concentrations in honey for both radionuclides were under the detection limit, but again rose after the Fukushima Daiichi accident. Effective radiation doses due to radiocaesium, received by the Croatian population by honey consumption, even in the year of the Chernobyl accident were estimated to be very small, the per caput dose being less than 1 micro Sv. Based on radioecological investigations of honey, we argue that the mobility of honey bees and their ability to integrate all exposure pathways could add another level of confidence to the present monitoring program if honey and other bee-farming products are included in the routine radioecological monitoring programme for the Croatian environment. (author).

  9. Honey ointment': a natural remedy of skin wound infections

    International Nuclear Information System (INIS)

    Tasleem, S.; Naqvi, S.B.S.; Hashimi, K.

    2011-01-01

    Background: Honey is a gift of nature, principally identified and valued to possess antimicrobial and anti-inflammatory activity and has been used as a natural remedy of wounds since ancient times. The objectives of this study were to evaluate the antimicrobial activity of honey against micro-organisms, to formulate a honey ointment and to evaluate the efficacy of such ointment by conducting clinical trials on skin wound infection. Methods: This experimental study was conducted at Department of Pharmaceutics, Faculty of Pharmacy, University of Karachi and Out-patient Department of Dermatology, Fauji Foundation Hospital, Rawalpindi from November 2009 to October 2010. The antimicrobial activity of Pakistani floral sources (Trachysperm copticum, Acacia nilotica species indica, Zizyphus) honey samples was investigated by disc diffusion method against freshly isolated wound infecting bacteria (Staphylococci aureus, Staphylococci epidermidis, Streptococcus faecalis, Pseudomonas aeruginosa, Klebsiella pneumonia, Escherichia coli, Proteus vulgaris and Candida albicans), and Staphylococci aureus ATCC 6538, Pseudomonas aeruginosa ATCC 9022, Escherichia coli ATCC 25922, Candida albican ATCC 15146. An ointment containing 20% active antimicrobial honey was formulated. The efficacy of such ointment was evaluated by passing thought clinical trials. A total number of 27 patients (23 skin wound infection, and 4 diabetic foot ulcer) were involved in the study. Thin layer of newly formulated honey ointment on gauze were applied two to three times per day till complete healing. Results: In microbiological assay the honey samples were found to exhibit a very promising antimicrobial activity against all the micro-organisms tested. In clinical trial very significant results (99.15%) healing was observed in skin wound infections cases with mean healing time of 5.86 (2-20) days, and 95% diabetic foot ulcers healed with the mean healing time of 20 (8-40) days. Conclusion: Newly formulated

  10. Impacts of Austrian Climate Variability on Honey Bee Mortality

    Science.gov (United States)

    Switanek, Matt; Brodschneider, Robert; Crailsheim, Karl; Truhetz, Heimo

    2015-04-01

    Global food production, as it is today, is not possible without pollinators such as the honey bee. It is therefore alarming that honey bee populations across the world have seen increased mortality rates in the last few decades. The challenges facing the honey bee calls into question the future of our food supply. Beside various infectious diseases, Varroa destructor is one of the main culprits leading to increased rates of honey bee mortality. Varroa destructor is a parasitic mite which strongly depends on honey bee brood for reproduction and can wipe out entire colonies. However, climate variability may also importantly influence honey bee breeding cycles and bee mortality rates. Persistent weather events affects vegetation and hence foraging possibilities for honey bees. This study first defines critical statistical relationships between key climate indicators (e.g., precipitation and temperature) and bee mortality rates across Austria, using 6 consecutive years of data. Next, these leading indicators, as they vary in space and time, are used to build a statistical model to predict bee mortality rates and the respective number of colonies affected. Using leave-one-out cross validation, the model reduces the Root Mean Square Error (RMSE) by 21% with respect to predictions made with the mean mortality rate and the number of colonies. Furthermore, a Monte Carlo test is used to establish that the model's predictions are statistically significant at the 99.9% confidence level. These results highlight the influence of climate variables on honey bee populations, although variability in climate, by itself, cannot fully explain colony losses. This study was funded by the Austrian project 'Zukunft Biene'.

  11. Pollen analysis of honey and beebread derived from Brazilian mangroves

    OpenAIRE

    Luz, Cynthia Fernandes Pinto da; Barth, Ortrud Monika

    2012-01-01

    Pollen analyses were performed on honey and beebread from hives in apiaries located in two distinct mangrove areas dominated by Laguncularia racemosa (L.) C.F. Gaernt. One apiary was located at the edge of Guanabara Bay, Rio de Janeiro State, and the other near Maranguá Bay, Bahia State, Brazil. We investigated the contribution of nectar and pollen from mangrove vegetation to Apis mellifera L. honey and beebread stocks. Intensive visitation to this plant species by honeybees and the presence ...

  12. Slow ventricular response atrial fibrillation related to mad honey poisoning

    Science.gov (United States)

    Osken, A.; Yaylacı, S.; Aydın, E.; Kocayigit, İ; Cakar, M.A.; Tamer, A.; Gündüz, H.

    2012-01-01

    Mad honey poisoning which is induced by Grayanotoxin (Andromedotoxin), is also known to have adverse effects in the cardiovascular system leading to different clinical entities. This toxin is produced by a member of the Rhododendron genus of plants of two R. Luteum and R. Panticum. In this article, we presented a case of slow ventricular response atrial fibrillation complaints with nausea, vomiting, dizziness and chest pain about an hour after eating honey produced in the Black Sea Region. PMID:22923947

  13. Slow ventricular response atrial fibrillation related to mad honey poisoning

    OpenAIRE

    Osken, A.; Yaylacı, S.; Aydın, E.; Kocayigit, İ; Cakar, M.A.; Tamer, A.; Gündüz, H.

    2012-01-01

    Mad honey poisoning which is induced by Grayanotoxin (Andromedotoxin), is also known to have adverse effects in the cardiovascular system leading to different clinical entities. This toxin is produced by a member of the Rhododendron genus of plants of two R. Luteum and R. Panticum. In this article, we presented a case of slow ventricular response atrial fibrillation complaints with nausea, vomiting, dizziness and chest pain about an hour after eating honey produced in the Black Sea Region.

  14. Honey Antibacterial Effect Boosting Using Origanum vulgare L. Essential Oil

    OpenAIRE

    Imtara, Hamada; Elamine, Youssef; Lyoussi, Badiâa

    2018-01-01

    The appearance of new bacterial strains which cause pathogenic diseases and which are resistant to the most used antibiotics requires probing new antibacterial agents sources. Therefore, the main aim of the present work was to follow the antibacterial activity of honey samples from Palestine and Morocco, after the combination with Origanum vulgare L. essential oil, and figure out whether the honey physicochemical parameters and geographic origin influence the final activity. The results of th...

  15. Italian Validation of Homophobia Scale (HS)

    OpenAIRE

    Ciocca, Giacomo; Capuano, Nicolina; Tuziak, Bogdan; Mollaioli, Daniele; Limoncin, Erika; Valsecchi, Diana; Carosa, Eleonora; Gravina, Giovanni L.; Gianfrilli, Daniele; Lenzi, Andrea; Jannini, Emmanuele A.

    2015-01-01

    Introduction: The Homophobia Scale (HS) is a valid tool to assess homophobia. This test is self‐reporting, composed of 25 items, which assesses a total score and three factors linked to homophobia: behavior/negative affect, affect/behavioral aggression, and negative cognition. Aim: The aim of this study was to validate the HS in the Italian context. Methods: An Italian translation of the HS was carried out by two bilingual people, after which an English native translated the test back i...

  16. Social media marketing in Italian luxury fashion

    OpenAIRE

    Ananda, Artha Sejati; Hernández García, Ángel; Lamberti, Lucio

    2015-01-01

    Industries nowadays have been comfortable with the incorporation of social media to their marketing strategy. Italy has been known as a major center of the European fashion industry, a sector that is also following the social media marketing trends. This paper provides empirical findings on Italian luxury fashion brands? social media marketing activities. We present and analyze two case studies of Italian luxury fashion brands: Gucci and The Bridge (Il Ponte Pelletteria). Gucci is one of worl...

  17. Honeydew Honeys: A Review on the Characterization and Authentication of Botanical and Geographical Origins.

    Science.gov (United States)

    Pita-Calvo, Consuelo; Vázquez, Manuel

    2018-03-21

    The commercial interest in honeydew honeys (from the secretions of plants or the excretions of plant-sucking insects found on plants) is increasing because of their higher therapeutic properties compared with those of most blossom honeys (from nectar). However, honeydew honeys have been less studied than blossom honeys. In this work, studies carried out to characterize and authenticate honeydew honeys by their botanical and geographical origins have been reviewed. The identification of honey origins has been approached by two ways: by the analysis of chemical markers and by the development of analytical methodologies combined with multivariate analyses. Some compounds have been suggested as specific botanical markers of several honeydew honeys, such as quercitol and trans-oak lactone for oak honey, 2-aminoacetophenone and propylanisol for holm oak honey, and 1-chloro-octane and tridecane for pine honey. The presence of 3-carene and an unidentified compound in samples was proposed as a way discriminate between Greek and Turkish pine honeys. Chemometric analyses have been applied on chemical compositions and on physicochemical, microscopic, and spectral parameters and have proved to be valuable methods for authenticating honeydew honeys. Analytical methods based on spectral information are suitable for the routine control of honeydew-honey origins because they are fast and require easy sample preparations.

  18. The Italian Way to Carsharing

    Directory of Open Access Journals (Sweden)

    Antonio Laurino

    2012-10-01

    Full Text Available Carsharing (CS is increasing its role worldwide as an alternative transport mode, often more sustainable than private transport with self-owned vehicles. We first focus on the main characteristics of those services and on the impacts they generated, starting from the analysis of  the literature on this topic. CS initiatives are growing everywhere, however numbers are still minor and impacts are still far from a level that can deliver significant aggregate benefits. This paper studies the existing Italian carsharing experiences, trying to understand its strengths, that have allowed its development, but also possible limits and weaknesses. The presence of a national coordination structure (Iniziativa Carsharing - ICS, unique in Europe and created to boost local initiatives providing standardisation and interoperability, surely helped the development of the system. Some initiatives have been successful in terms of membership (in particular Milan, Venice and Turin, but others have been discontinued. Italian users’ characteristics are similar to the ones of users abroad: the majority of users are well educated male, living in small households having one or no cars and using public transport every day. At present, Italian drivers generally still show a scarce propensity to share their cars, considered more as “goods” than as “services”. A case study in Milan, the first and most successful initiative in Italy, shows a significant increase in CS membership after the implementation of a city charging scheme (“Ecopass” at first, then “Area C”. Moving shared cars from garages to “on the street parking” has proved successful too. The usage of the service has changed in time: users have increased (+151% more than runs (+137% – 2006 to 2009, while average length and duration of each run have decreased (-30% and -43% respectively, 2006 to 2010. Milan’s initiative also put s into practice many incentives for users that likely

  19. Characterization of Multifloral Honeys of Pervari Region with Different Properties

    Directory of Open Access Journals (Sweden)

    Mehmet Emre EREZ

    2015-03-01

    Full Text Available The quality of honey from Pervari region was almost known by all over the country in Turkey. This study was undertaken to determine (i physico-chemical parameters, (ii antimicrobial analysis and (iii pollen estimation method with expert computer system obtained from three different sites of Pervari region (Siirt/Turkey. For physico-chemical parameters; moisture, free acidity, diastase activity, hydroxyl methyl furfural (HMF, invert sugar, ash, commercial glucose and proline analysis were examined. For anti-microbial analysis disc dilution method were studied on six different bacteria species. For pollen analysis; different and new expert computer system was used for comparison of pollen of plants and honey samples. The aim of the study was to evaluate the properties of multi floral honey determined from three different locations in the same region and the way to understand to which plants were visited by the bees with comparing of pollen grains of flowers and honey by using the expert computer system. Honey samples of Pervari region were of acceptable quality based on recommended criteria of Turkish Food Codex and International Honey Commission.

  20. Phytochemical fingerprints of lime honey collected in serbia.

    Science.gov (United States)

    Gašić, Uroš; Šikoparija, Branko; Tosti, Tomislav; Trifković, Jelena; Milojković-Opsenica, Dušanka; Natić, Maja; Tešić, Živoslav

    2014-01-01

    Composition of phenolic compounds and the sugar content were determined as the basis for characterization of lime honey from Serbia. Particular attention was given to differences in phytochemical profiles of ripe and unripe lime honey and lime tree nectar. Melissopalynological analysis confirmed domination of Tilia nectar in all analyzed samples. Phenolic acids, abscisic acid, flavonoids, and flavonoid glycosides were determined by means of ultra-HPLC coupled with a hybrid mass spectrometer (UHPLC-OrbiTrap). Sugar content was determined using high-performance anion-exchange chromatography with amperometric detection. Similar phenolic compounds characterized unripe and ripe honeys, while the lime tree nectar profile showed notable differences. Compared to lime tree nectar, a high amount of chrysin, pinocembrin, and galangin were detected in both ripe and unripe lime honey. Fructose and glucose were the major constituents of all investigated samples, and amounts were within the limits established by European Union legislation. Sucrose content in the nectar sample was up to two-fold higher when compared to all honey samples. Isomaltose and gentiobiose with turanose content were different in analyzed production stages of lime honey.

  1. Prolonged preconditioning with natural honey against myocardial infarction injuries.

    Science.gov (United States)

    Eteraf-Oskouei, Tahereh; Shaseb, Elnaz; Ghaffary, Saba; Najafi, Moslem

    2013-07-01

    Potential protective effects of prolonged preconditioning with natural honey against myocardial infarction were investigated. Male Wistar rats were pre-treated with honey (1%, 2% and 4%) for 45 days then their hearts were isolated and mounted on a Langendorff apparatus and perfused with a modified Krebs-Henseleit solution during 30 min regional ischemia fallowed by 120 min reperfusion. Two important indexes of ischemia-induced damage (infarction size and arrhythmias) were determined by computerized planimetry and ECG analysis, respectively. Honey (1% and 2%) reduced infarct size from 23±3.1% (control) to 9.7±2.4 and 9.5±2.3%, respectively (Phoney (1%) significantly reduced (PHoney (1% and 2%) also significantly decreased number of ventricular ectopic beats (VEBs). In addition, incidence and duration of reversible ventricular fibrillation (Rev VF) were lowered by honey 2% (Phoney produced significant reduction in the incidences of VT, total and Rev VF, duration and number of VT. The results showed cardioprotective effects of prolonged pre-treatment of rats with honey following myocardial infarction. Maybe, the existence of antioxidants and energy sources (glucose and fructose) in honey composition and improvement of hemodynamic functions may involve in those protective effects.

  2. Honey in modern wound care: a systematic review.

    Science.gov (United States)

    Vandamme, L; Heyneman, A; Hoeksema, H; Verbelen, J; Monstrey, S

    2013-12-01

    Honey, known for centuries as a topical treatment for a wide range of wounds, has recently known a revival in modern wound care. The objective of this systematic review is to evaluate the available evidence and the role of honey in contemporary wound care. The search strategy was developed in the databases PubMed and ISI Web of Science. Fifty-five studies of any design, evaluating the use of honey in human burns, ulcers and other wounds, written in English, French, German or Dutch were eligible for inclusion. In all three wound categories honey seems to be a dressing with wound healing stimulating properties. In burns there is also evidence for its antibacterial capacity. In general, honey is also been mentioned to have deodorizing, debridement, anti-inflammatory and wound pain reducing properties, although the evidence for these properties is rather limited. Many of the included studies have methodological problems, and the quality of certain studies is low, making it difficult to formulate conclusive guidelines. This review reveals several gaps in the research of honey in modern wound care, and recommendations are suggested for future research. Copyright © 2013 Elsevier Ltd and ISBI. All rights reserved.

  3. Characterization of Lavandula spp. Honey Using Multivariate Techniques.

    Science.gov (United States)

    Estevinho, Leticia M; Chambó, Emerson Dechechi; Pereira, Ana Paula Rodrigues; Carvalho, Carlos Alfredo Lopes de; Toledo, Vagner de Alencar Arnaut de

    2016-01-01

    Traditionally, melissopalynological and physicochemical analyses have been the most used to determine the botanical origin of honey. However, when performed individually, these analyses may provide less unambiguous results, making it difficult to discriminate between mono and multifloral honeys. In this context, with the aim of better characterizing this beehive product, a selection of 112 Lavandula spp. monofloral honey samples from several regions were evaluated by association of multivariate statistical techniques with physicochemical, melissopalynological and phenolic compounds analysis. All honey samples fulfilled the quality standards recommended by international legislation, except regarding sucrose content and diastase activity. The content of sucrose and the percentage of Lavandula spp. pollen have a strong positive association. In fact, it was found that higher amounts of sucrose in honey are related with highest percentage of pollen of Lavandula spp.. The samples were very similar for most of the physicochemical parameters, except for proline, flavonoids and phenols (bioactive factors). Concerning the pollen spectrum, the variation of Lavandula spp. pollen percentage in honey had little contribution to the formation of samples groups. The formation of two groups regarding the physicochemical parameters suggests that the presence of other pollen types in small percentages influences the factor termed as "bioactive", which has been linked to diverse beneficial health effects.

  4. Volatiles from a rare Acer spp. honey sample from Croatia.

    Science.gov (United States)

    Jerković, Igor; Marijanović, Zvonimir; Malenica-Staver, Mladenka; Lusić, Drazen

    2010-06-24

    A rare sample of maple (Acer spp.) honey from Croatia was analysed. Ultrasonic solvent extraction (USE) using: 1) pentane, 2) diethyl ether, 3) a mixture of pentane and diethyl ether (1:2 v/v) and 4) dichloromethane as solvents was applied. All the extracts were analysed by GC and GC/MS. The most representative extracts were 3) and 4). Syringaldehyde was the most striking compound, being dominant in the extracts 2), 3) and 4) with percentages 34.5%, 33.1% and 35.9%, respectively. In comparison to USE results of other single Croatian tree honey samples (Robinia pseudoacacia L. nectar honey, Salix spp. nectar and honeydew honeys, Quercus frainetto Ten. honeydew as well as Abies alba Mill. and Picea abies L. honeydew) and literature data the presence of syringaldehyde, previously identified in maple sap and syrup, can be pointed out as a distinct characteristic of the Acer spp. honey sample. Headspace solid-phase microextraction (HS-SPME) combined with GC and GC/MS identified benzaldehyde (16.5%), trans-linalool oxide (20.5%) and 2-phenylethanol (14.9%) as the major compounds that are common in different honey headspace compositions.

  5. Antibacterial activity of different honeys against pathogenic bacteria.

    Science.gov (United States)

    Voidarou, C; Alexopoulos, A; Plessas, S; Karapanou, A; Mantzourani, I; Stavropoulou, E; Fotou, K; Tzora, A; Skoufos, I; Bezirtzoglou, E

    2011-12-01

    To study the antimicrobial activity of honey, 60 samples of various botanical origin were evaluated for their antimicrobial activities against 16 clinical pathogens and their respective reference strains. The microbiological quality of honeys and the antibiotic susceptibility of the various isolates were also examined. The bioassay applied for determining the antimicrobial effect employs the well-agar diffusion method and the estimation of minimum active dilution which produces a 1mm diameter inhibition zone. All honey samples, despite their origin (coniferous, citrus, thyme or polyfloral), showed antibacterial activity against the pathogenic and their respective reference strains at variable levels. Coniferous and thyme honeys showed the highest activity with an average minimum dilution of 17.4 and 19.2% (w/v) followed by citrus and polyfloral honeys with 20.8 and 23.8% respectively. Clinical isolates of Staphylococcus aureus subsp. aureus, Escherichia coli, Salmonella enterica subsp. Enterica, Streptococcus pyogenes, Bacillus cereus and Bacillus subtilis were proven to be up to 60% more resistant than their equal reference strains thus emphasizing the variability in the antibacterial effect of honey and the need for further research. Copyright © 2011 Elsevier Ltd. All rights reserved.

  6. Honey Antibacterial Effect Boosting Using Origanum vulgare L. Essential Oil.

    Science.gov (United States)

    Imtara, Hamada; Elamine, Youssef; Lyoussi, Badiâa

    2018-01-01

    The appearance of new bacterial strains which cause pathogenic diseases and which are resistant to the most used antibiotics requires probing new antibacterial agents sources. Therefore, the main aim of the present work was to follow the antibacterial activity of honey samples from Palestine and Morocco, after the combination with Origanum vulgare L. essential oil, and figure out whether the honey physicochemical parameters and geographic origin influence the final activity. The results of this study showed good geographical discrimination between the Palestinians and Moroccan honey samples. The antioxidant and antimicrobial activities showed a significant correlation with honey color, melanoidins, and phenolic and flavonoids contents. Furthermore, the possible effect of honey physicochemical parameters on the gained antimicrobial activities was assessed using the principal component analysis (PCA). Some parameters showed a promising effect and seem to be important in the process of honey samples selection. Namely, melanoidins content, phenolic content, electrical conductivity, and mineral content were shown to be positively influencing the gained antibacterial activity after the combination with essential oil against the tested strains, although a significant negative correlation was seen with the FIC only in the case of Escherichia coli (ATB: 57).

  7. Honey Antibacterial Effect Boosting Using Origanum vulgare L. Essential Oil

    Directory of Open Access Journals (Sweden)

    Hamada Imtara

    2018-01-01

    Full Text Available The appearance of new bacterial strains which cause pathogenic diseases and which are resistant to the most used antibiotics requires probing new antibacterial agents sources. Therefore, the main aim of the present work was to follow the antibacterial activity of honey samples from Palestine and Morocco, after the combination with Origanum vulgare L. essential oil, and figure out whether the honey physicochemical parameters and geographic origin influence the final activity. The results of this study showed good geographical discrimination between the Palestinians and Moroccan honey samples. The antioxidant and antimicrobial activities showed a significant correlation with honey color, melanoidins, and phenolic and flavonoids contents. Furthermore, the possible effect of honey physicochemical parameters on the gained antimicrobial activities was assessed using the principal component analysis (PCA. Some parameters showed a promising effect and seem to be important in the process of honey samples selection. Namely, melanoidins content, phenolic content, electrical conductivity, and mineral content were shown to be positively influencing the gained antibacterial activity after the combination with essential oil against the tested strains, although a significant negative correlation was seen with the FIC only in the case of Escherichia coli (ATB: 57.

  8. Using DNA Metabarcoding to Identify the Floral Composition of Honey: A New Tool for Investigating Honey Bee Foraging Preferences.

    Directory of Open Access Journals (Sweden)

    Jennifer Hawkins

    Full Text Available Identifying the floral composition of honey provides a method for investigating the plants that honey bees visit. We compared melissopalynology, where pollen grains retrieved from honey are identified morphologically, with a DNA metabarcoding approach using the rbcL DNA barcode marker and 454-pyrosequencing. We compared nine honeys supplied by beekeepers in the UK. DNA metabarcoding and melissopalynology were able to detect the most abundant floral components of honey. There was 92% correspondence for the plant taxa that had an abundance of over 20%. However, the level of similarity when all taxa were compared was lower, ranging from 22-45%, and there was little correspondence between the relative abundance of taxa found using the two techniques. DNA metabarcoding provided much greater repeatability, with a 64% taxa match compared to 28% with melissopalynology. DNA metabarcoding has the advantage over melissopalynology in that it does not require a high level of taxonomic expertise, a greater sample size can be screened and it provides greater resolution for some plant families. However, it does not provide a quantitative approach and pollen present in low levels are less likely to be detected. We investigated the plants that were frequently used by honey bees by examining the results obtained from both techniques. Plants with a broad taxonomic range were detected, covering 46 families and 25 orders, but a relatively small number of plants were consistently seen across multiple honey samples. Frequently found herbaceous species were Rubus fruticosus, Filipendula ulmaria, Taraxacum officinale, Trifolium spp., Brassica spp. and the non-native, invasive, Impatiens glandulifera. Tree pollen was frequently seen belonging to Castanea sativa, Crataegus monogyna and species of Malus, Salix and Quercus. We conclude that although honey bees are considered to be supergeneralists in their foraging choices, there are certain key species or plant groups that

  9. Using DNA Metabarcoding to Identify the Floral Composition of Honey: A New Tool for Investigating Honey Bee Foraging Preferences.

    Science.gov (United States)

    Hawkins, Jennifer; de Vere, Natasha; Griffith, Adelaide; Ford, Col R; Allainguillaume, Joel; Hegarty, Matthew J; Baillie, Les; Adams-Groom, Beverley

    2015-01-01

    Identifying the floral composition of honey provides a method for investigating the plants that honey bees visit. We compared melissopalynology, where pollen grains retrieved from honey are identified morphologically, with a DNA metabarcoding approach using the rbcL DNA barcode marker and 454-pyrosequencing. We compared nine honeys supplied by beekeepers in the UK. DNA metabarcoding and melissopalynology were able to detect the most abundant floral components of honey. There was 92% correspondence for the plant taxa that had an abundance of over 20%. However, the level of similarity when all taxa were compared was lower, ranging from 22-45%, and there was little correspondence between the relative abundance of taxa found using the two techniques. DNA metabarcoding provided much greater repeatability, with a 64% taxa match compared to 28% with melissopalynology. DNA metabarcoding has the advantage over melissopalynology in that it does not require a high level of taxonomic expertise, a greater sample size can be screened and it provides greater resolution for some plant families. However, it does not provide a quantitative approach and pollen present in low levels are less likely to be detected. We investigated the plants that were frequently used by honey bees by examining the results obtained from both techniques. Plants with a broad taxonomic range were detected, covering 46 families and 25 orders, but a relatively small number of plants were consistently seen across multiple honey samples. Frequently found herbaceous species were Rubus fruticosus, Filipendula ulmaria, Taraxacum officinale, Trifolium spp., Brassica spp. and the non-native, invasive, Impatiens glandulifera. Tree pollen was frequently seen belonging to Castanea sativa, Crataegus monogyna and species of Malus, Salix and Quercus. We conclude that although honey bees are considered to be supergeneralists in their foraging choices, there are certain key species or plant groups that are particularly

  10. Environmental radioactivity and chemical composition of different types of bee honeys produced at in-house area, egypt

    International Nuclear Information System (INIS)

    Ramadan, A.B.

    2005-01-01

    Environmental radioactivity and chemical composition of bee honey varies with the surrounding environment (major floral and soil contamination), which reflects the nutritional value of honey. 23SU, 232Th, 40K, >37Cs, major elements Na, K, Mg and Cl and trace elements Mn, Fe, Zn, F, I, Cu, Co, Ni and Sr as well as toxic elements Cd and Pb -were all determined in different types of bee honey, which include non-floral honey with artificial feeding (syrup-feed honey) and mono-floral honeys (clover honey or sesame honey or orange honey). These elements were also determined in the bee feeds, which include flowers (clover, sesame and orange) and syrup. The results revealed that of all types of honeys and syrup-feed honey exhibited higher natural radioactivity and higher concentrations ofNa, K, Mg, Cl, oMn, Fe, Co, Cd and Pb than in the other honeys. Orange honey contained the lowest natural radioactivity and element concentrations. Clover honey had the lowest toxic element Cd and Pb concentrations (0.02 and 4.2/xg/g, respectively) while sesame honey contained the highest levels of Cd and F (0.7 and 12.9 /ig/g, respectively). Statistical analysis revealed significant correlation between honey and the feed (R= 0.745 to 0.921). Environmental radioactivity and element concentrations in the honey under study were in the safety baseline levels for human consumption

  11. HONEYDEW HONEY: CORRELATIONS BETWEEN CHEMICAL COMPOSITION, ANTIOXIDANT CAPACITY AND ANTIBACTERIAL EFFECT

    Directory of Open Access Journals (Sweden)

    OTILIA BOBIS

    2008-10-01

    Full Text Available Selected physico-chemical parameters, total polyphenols, flavonoids, antioxidant and antibacterial activity of honeydew honey samples from Romanian were determined. Regarding the chemical composition, analysed honey samples framed in this type of honey, phenolic content, determined as gallic acid equivalents, presented a mean value of 116.45mg GAE/100 g honey. Total flavonoid content expressed as quercetin equivalents, was 1.53 mg in honeydew honey. Antioxidant activity expressed as % inhibition of a solution of DPPH, ranged between 47.84 and 62.99%. The concentration of honey that inhibit with 50% the DPPH solution was established to be 16.16%. 10 strains of Staphylococcus aureus presented different inhibition percentages when were treatred with a solution of honey. In conclusion, Honeydew honey could be recommended to complement other polyphenol source in human diet and also used in medical treatment.

  12. 77 FR 1458 - Honey From Argentina: Preliminary Results of Antidumping Duty Administrative Review and Partial...

    Science.gov (United States)

    2012-01-10

    ... Cooperativas Argentinas Av. (ACA), HoneyMax S.A. (HoneyMax), Alma Pura S.A. (Alma Pura), Alimentos Naturales... withdrew their request for review of the following companies: (1) Alimentos Naturales-Natural Foods Lavalle...

  13. Comparison of efficacy of unheated and heat-treated Sahara honey on wound healing in rabbits

    Directory of Open Access Journals (Sweden)

    Baghdad Khiati

    2015-02-01

    Full Text Available Objective: To investigate the efficacy of unheated and heat-treated Sahara honey on wound healing in rabbits on the basis of macroscopic observation changes. Methods: Eight female rabbits were used. Using aseptic surgical technique, a 3 cm incision was made on the back of each rabbit and two rabbits with injuries in each group were treated daily with a topical application of unheated and heated honey, sulfadiazine and sterile saline, respectively. Results: The unheated honey demonstrated the highest activity on the wound compared to reference ointment silver sulfadiazine, heat-treated honey and sterile saline respectively. Further the present investigation proves that unheated honey is possessing superior wound healing activity than that of heat-treated honey. Conclusions: The result of this study confirms that unheated honey had the best wound healing effect even better than heat-treated honey.

  14. Concentrations of neonicotinoid insecticides in honey, pollen and honey bees (Apis mellifera L.) in central Saskatchewan, Canada.

    Science.gov (United States)

    Codling, Garry; Al Naggar, Yahya; Giesy, John P; Robertson, Albert J

    2016-02-01

    Neonicotinoid insecticides (NIs) and their transformation products were detected in honey, pollen and honey bees, (Apis mellifera) from hives located within 30 km of the City of Saskatoon, Saskatchewan, Canada. Clothianidin and thiamethoxam were the most frequently detected NIs, found in 68 and 75% of honey samples at mean concentrations of 8.2 and 17.2 ng g(-1) wet mass, (wm), respectively. Clothianidin was also found in >50% of samples of bees and pollen. Concentrations of clothianidin in bees exceed the LD50 in 2 of 28 samples, while for other NIs concentrations were typically 10-100-fold less than the oral LD50. Imidaclorpid was detected in ∼30% of samples of honey, but only 5% of pollen and concentrations were honey and pollen by bees over winter, during which worker bees live longer than in summer, suggested that, in some hives, consumption of honey and pollen during over-wintering might have adverse effects on bees. Copyright © 2015 Elsevier Ltd. All rights reserved.

  15. Classification of adulterated honeys by multivariate analysis.

    Science.gov (United States)

    Amiry, Saber; Esmaiili, Mohsen; Alizadeh, Mohammad

    2017-06-01

    In this research, honey samples were adulterated with date syrup (DS) and invert sugar syrup (IS) at three concentrations (7%, 15% and 30%). 102 adulterated samples were prepared in six batches with 17 replications for each batch. For each sample, 32 parameters including color indices, rheological, physical, and chemical parameters were determined. To classify the samples, based on type and concentrations of adulterant, a multivariate analysis was applied using principal component analysis (PCA) followed by a linear discriminant analysis (LDA). Then, 21 principal components (PCs) were selected in five sets. Approximately two-thirds were identified correctly using color indices (62.75%) or rheological properties (67.65%). A power discrimination was obtained using physical properties (97.06%), and the best separations were achieved using two sets of chemical properties (set 1: lactone, diastase activity, sucrose - 100%) (set 2: free acidity, HMF, ash - 95%). Copyright © 2016 Elsevier Ltd. All rights reserved.

  16. Impact of floral sources and processing on the antimicrobial activities of different unifloral honeys

    Science.gov (United States)

    Elbanna, Khaled; Attalla, Khaled; Elbadry, Medhat; Abdeltawab, Awad; Gamal-Eldin, Hosny; Ramadan, Mohamed Fawzy

    2014-01-01

    Objective To study in vitro antibacterial activity and physicochemical properties of three unifloral honeys (citrus, clover and cotton honeys), and to study the impacts of storage, dilution with water (33%, w/v) and autoclaving (121 °C for 15 min) on honeys characteristics. Methods Honey samples from monofloral sources including citrus (Citrus spp.), Egyptian clover (Trifolium alexandrium) and cotton (Gossypium vitifolium) were obtained during three successive seasons (2010-2012). Physicochemical properties and antimicrobial activities of different honey samples were studies. Results In honey samples stored for 12 or 24 month, colour, hydroxymethyl furfural and acidity increased, while refractive index, water activity, total soluble solids, electrical conductivity and pH remained relatively unaffected, but H2O2 values decreased. Types of honey exhibited various degrees of antibacterial activity against different indicator bacteria, wherein the highest antibacterial activity was recorded for clover honey followed by citrus and cotton honeys, respectively. Different species of bacteria were differed in their sensitivity to honey, wherein Salmonella enteritidis was the most sensitive followed by Staphylococcus aureus, Listeria monocytogenes and Escherichia coli, respectively. Storage up to 24 months at room temperature slightly reduced the antibacterial activity. The reduction levels were about 2.6% and 4.6% after 12 and 24 months, respectively. Diluting honeys with water increased the antibacterial activity by ca. 8.3%, while autoclaving decreased the antibacterial activity by ca. 13.5%. The relative contribution of the peroxide and non-peroxide components in the total antibacterial activity of fresh honeys was investigated. The antibacterial activity of honeys was mainly attributed to non-peroxide antibacterial agents, wherein their contribution was ca. 88%, while the contribution of H2O2 was only 12%. The contribution of the thermostable antibacterial components

  17. Omega-3 deficiency impairs honey bee learning

    Science.gov (United States)

    Arien, Yael; Dag, Arnon; Zarchin, Shlomi; Masci, Tania

    2015-01-01

    Deficiency in essential omega-3 polyunsaturated fatty acids (PUFAs), particularly the long-chain form of docosahexaenoic acid (DHA), has been linked to health problems in mammals, including many mental disorders and reduced cognitive performance. Insects have very low long-chain PUFA concentrations, and the effect of omega-3 deficiency on cognition in insects has not been studied. We show a low omega-6:3 ratio of pollen collected by honey bee colonies in heterogenous landscapes and in many hand-collected pollens that we analyzed. We identified Eucalyptus as an important bee-forage plant particularly poor in omega-3 and high in the omega-6:3 ratio. We tested the effect of dietary omega-3 deficiency on olfactory and tactile associative learning of the economically highly valued honey bee. Bees fed either of two omega-3–poor diets, or Eucalyptus pollen, showed greatly reduced learning abilities in conditioned proboscis-extension assays compared with those fed omega-3–rich diets, or omega-3–rich pollen mixture. The effect on performance was not due to reduced sucrose sensitivity. Omega-3 deficiency also led to smaller hypopharyngeal glands. Bee brains contained high omega-3 concentrations, which were only slightly affected by diet, suggesting additional peripheral effects on learning. The shift from a low to high omega-6:3 ratio in the Western human diet is deemed a primary cause of many diseases and reduced mental health. A similar shift seems to be occurring in bee forage, possibly an important factor in colony declines. Our study shows the detrimental effect on cognitive performance of omega-3 deficiency in a nonmammal. PMID:26644556

  18. On the antibacterial effects of manuka honey: mechanistic insights

    Directory of Open Access Journals (Sweden)

    Roberts AEL

    2015-10-01

    Full Text Available Aled Edward Lloyd Roberts,* Helen Louise Brown,* Rowena Eleri Jenkins Department of Biomedical Sciences, Cardiff Metropolitan University, Cardiff, Wales, UK *These authors contributed equally to this work Abstract: Antimicrobial resistance (AMR is an increasing clinical problem precipitated by the inappropriate use of antibiotics in the later parts of the 20th Century. This problem, coupled with the lack of novel therapeutics in the development pipeline, means AMR is reaching crisis point, with an expected annual death rate of ten million people worldwide by 2050. To reduce, and to potentially remedy this problem, many researchers are looking into natural compounds with antimicrobial and/or antivirulence activity. Manuka honey is an ancient antimicrobial remedy with a good track record against a wide range of nosocomial pathogens that have increased AMR. Its inhibitory effects are the result of its constituent components, which add varying degrees of antimicrobial efficacy to the overall activity of manuka honey. The antimicrobial efficacy of manuka honey and some of its constituent components (such as methylglyoxal and leptosperin are known to bestow some degree of antimicrobial efficacy to manuka honey. Despite growing in vitro evidence of its antimicrobial efficacy, the in vivo use of manuka honey (especially in a clinical environment has been unexpectedly slow, partly due to the lack of mechanistic data. The mechanism by which manuka honey achieves its inhibitory efficacy has recently been identified against Staphylococcus aureus and Pseudomonas aeruginosa, with both of these contrasting organisms being inhibited through different mechanisms. Manuka honey inhibits S. aureus by interfering with the cell division process, whereas P. aeruginosa cells lyse in its presence due to the reduction of a key structural protein. In addition to these inhibitory effects, manuka honey is known to reduce virulence, motility, and biofilm formation. With this

  19. Honey bee (Apis mellifera) nurses do not consume pollens based on their nutritional quality

    OpenAIRE

    Corby-Harris, Vanessa; Snyder, Lucy; Meador, Charlotte; Ayotte, Trace

    2018-01-01

    Honey bee workers (Apis mellifera) consume a variety of pollens to meet the majority of their requirements for protein and lipids. Recent work indicates that honey bees prefer diets that reflect the proper ratio of nutrients necessary for optimal survival and homeostasis. This idea relies on the precept that honey bees evaluate the nutritional composition of the foods provided to them. While this has been shown in bumble bees, the data for honey bees are mixed. Further, there is controversy a...

  20. Norwegian honey bees surviving Varroa destructor mite infestations by means of natural selection

    OpenAIRE

    Oddie, Melissa AY; Dahle, Bjørn Steinar; Neumann, Peter

    2017-01-01

    Background Managed, feral and wild populations of European honey bee subspecies, Apis mellifera, are currently facing severe colony losses globally. There is consensus that the ectoparasitic mite Varroa destructor, that switched hosts from the Eastern honey bee Apis cerana to the Western honey bee A. mellifera, is a key factor driving these losses. For >20 years, breeding efforts have not produced European honey bee colonies that can survive infestations without the need for mite control....

  1. Detecting Adulteration in Lotus Honey Using a Machine Olfactory System

    Directory of Open Access Journals (Sweden)

    M Hajinezhad

    2017-10-01

    Full Text Available Introduction Honey is a supersaturated sugar and viscose solution taken from the nectar of flowers, collected and modified by honeybees. Many producers of honey add some variety of sugars in honey that make difficulties with detection of adulterated and pure honey. Flavor is one of the most important parameters in the classification of honey samples and the smell emitted by the honey depending on the different flowers and constituents that could be different. This causes using an electronic nose system to detect honey adulteration. Materials and Methods Honey samples used in this study were lotus honey that was supplied from a market in Karaj city, Alborz province, Iran. Adulterated honey, along with percentages of fraud (by weight of zero, 20, 35 and 50 percent, was prepared by mixing sugar syrup. Each group of samples, nine times were tested by the electronic nose system. The proposed system, consists of six metal oxide semiconductor sensors, sensor chamber, sample chamber, data acquisition systems, power supply, electric valves, and pumps. Electronic nose is planned for three-phase system baseline correction, the smell of sample injection and cleaning of the sensor and sample chambers with clean air (Oxygen. Responses of the sensors were collected and stored in 420 seconds by a data acquisition system and LabView ver 2012 software. We used fractional method in this study, in order to improve the quality of the information available and to optimize the array output before passing it on to the pattern recognition system. Linear Discriminant Analysis (LDA, Principal Component Analysis (PCA and Artificial neural network (ANN were the methods used for analyzing and recognizing pattern of electronic nose signals. Data processing was carried out using Microsoft Excel, neuralsolution 5 and Unscrambler X 10.3 (CAMO AS, Norway. Results and Discussion PCA Results PCA reduces the complexity of the data-set and is performed with no information on the

  2. Characterization of Turkish honeys regarding of physicochemical properties, and their adulteration analysis

    Directory of Open Access Journals (Sweden)

    Şeyda KIVRAK

    Full Text Available Abstract This work was conducted to evaluate the quality of 54 honey samples from eighteen different origins from Turkey. Physicochemical properties were examined according to AOAC methods, total phenolic and flavonoid contents by a spectrophotometric method and authenticity of honeys by Combustion Module - Cavity Ring-Down Spectroscopy (CM-CRDS. The microscopic analysis of honey sediment (mellissopalynology was carried out to identify and count the pollen to provide qualitative indicators to confirm botanical origin. The moisture, electrical conductivity and free acidity of honeys ranged from 15.56 to 18.39%, 0.143 to 2.006 mS.cm-1, 16.05 meq.kg-1 and 34.10 meq.kg-1, respectively. Diastase activity of sideritis honey was found highest. Honeys showed HMF level below 40 mg.kg-1. The highest proline was determined in thyme honey. The results showed that honeys contained eminent amounts of phenolics and flavonoids. δ13C values of honeys were more negative than -23.5‰. The C4% sugar ratios were lower than 7% value. The lowest glucose-fructose content was observed in eucalyptus, cedar and pine honey samples. The results obtained for physicochemical characteristics, total phenolic and flavonoid contents an authenticity analysis of Turkish honeys indicate a good quality level, adequate processing, good maturity and freshness. The discrimination between honey types was achieved by PCA.

  3. The habitat disruption induces immune-suppression and oxidative stress in honey bees

    Science.gov (United States)

    Morimoto, Tomomi; Kojima, Yuriko; Toki, Taku; Komeda, Yayoi; Yoshiyama, Mikio; Kimura, Kiyoshi; Nirasawa, Keijiro; Kadowaki, Tatsuhiko

    2011-01-01

    The honey bee is a major insect used for pollination of many commercial crops worldwide. Although the use of honey bees for pollination can disrupt the habitat, the effects on their physiology have never been determined. Recently, honey bee colonies have often collapsed when introduced in greenhouses for pollination in Japan. Thus, suppressing colony collapses and maintaining the number of worker bees in the colonies is essential for successful long-term pollination in greenhouses and recycling of honey bee colonies. To understand the physiological states of honey bees used for long-term pollination in greenhouses, we characterized their gene expression profiles by microarray. We found that the greenhouse environment changes the gene expression profiles and induces immune-suppression and oxidative stress in honey bees. In fact, the increase of the number of Nosema microsporidia and protein carbonyl content was observed in honey bees during pollination in greenhouses. Thus, honey bee colonies are likely to collapse during pollination in greenhouses when heavily infested with pathogens. Degradation of honey bee habitat by changing the outside environment of the colony, during pollination services for example, imposes negative impacts on honey bees. Thus, worldwide use of honey bees for crop pollination in general could be one of reasons for the decline of managed honey bee colonies. PMID:22393496

  4. Use of Bee Honey as Alternative Medicine in Protein Energy Deficiency

    OpenAIRE

    Prasetyo, R. Heru; Sandhika, Willy; Susanto, Djoni

    2013-01-01

    The protein energy deficiency cause intestinal villus atrophy and epithel mucous damage. The effect of bee honey on histostructure of intestine was studied in the experimental mice as model of proteinenergy deficiency. The use bee honey in protein-energy deficiency shown to improve intestinal villus atrophy and epithel damage. In conclusion that bee honey can use as alternative medicine in protein energydeficiency

  5. 77 FR 50464 - Honey From the People's Republic of China: Affirmative Final Determination of Circumvention of...

    Science.gov (United States)

    2012-08-21

    ... Determination \\1\\ of this anticircumvention inquiry, and determined that blends of honey and rice syrup are... Republic of China, 66 FR 63670 (December 10, 2001) (``Order''). DATES: Effective Date: August 21, 2012. FOR... are blends of honey and rice syrup, regardless of the percentage of honey they contain, from the PRC...

  6. 77 FR 37378 - Honey From the People's Republic of China: Affirmative Preliminary Determination of Circumvention...

    Science.gov (United States)

    2012-06-21

    ... ``refined sugar, high-fructose corn syrup, and the like'' \\12\\ as being used to make artificial honey. They...-fructose corn syrup were readily available in the U.S. market, with corn syrup being the most common... percent honey qualify as artificial honey because they are composed of sucrose, glucose and water, and...

  7. 77 FR 25682 - Honey From the People's Republic of China: Partial Rescission of Antidumping Duty Administrative...

    Science.gov (United States)

    2012-05-01

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-863] Honey From the People's... review of the antidumping duty order on Honey from the People's Republic of China (``PRC'') covering the... day period. See Letter to the Department from Petitioners, ``Honey from the People's Republic of China...

  8. 77 FR 34343 - Honey From the People's Republic of China: Final Rescission of Antidumping Duty Administrative...

    Science.gov (United States)

    2012-06-11

    ... DEPARTMENT OF COMMERCE International Trade Administration [A-570-863] Honey From the People's... order on honey from the People's Republic of China (``PRC'').\\1\\ We gave interested parties an... changes for the final rescission of this review. \\1\\ See Honey from the People's Republic of China...

  9. Effect of honey on oxidation, chlorination and nitration by purified equine myeloperoxidase

    Directory of Open Access Journals (Sweden)

    Saad Aissat

    2017-09-01

    Full Text Available Objective: To evaluate the antioxidant effect of honey using two classical methods generally used, and for the first time to test the effect of honey on the oxidation, chlorination and nitration by purified equine myeloperoxidase (MPO. Methods: The antioxidant activity of three Algerian honey samples (nectar honey, mixed honey and honeydew honey was evaluated by two classical methods, the ferric- reducing/antioxidant power (FRAP assay and 2,2-diphenyl-1-picrylhydrazyl (DPPH radical-scavenging capacity. Results: Honeydew honey had the highest reducing power and DPPH radical-scavenging activity, whereas nectar honey showed the lowest reducing power and DPPH radical-scavenging activity. All honey samples showed a significant inhibitory effect on the chlorination activity of equine MPO, but honeydew honey was the weakest inhibitor. The three samples were poorly inhibitor on the MPO oxidation and nitration activities, except for nectar honey that exerted an inhibitory effect at the highest tested concentration of 10%. These later results seem to contradict those obtained with DPPH and FRAP. Conclusions: The antioxidant capacity of honey is mainly due to the phenolic compounds and flavonoids it contained. It has been suggested that MPO might be involved in the antioxidant, not pro-oxidant, activity of phenolic compounds.

  10. Physicochemical properties of honey from Serbia in the period 2014-2016

    Science.gov (United States)

    Vranić, D.; Petronijević, R.; Đinović Stojanović, J.; Korićanac, V.; Babić Milijašević, J.; Milijašević, M.

    2017-09-01

    Honey is a viscous, aromatic, sweet food that is consumed and enjoyed by people around the world due to its unique nutritional and medicinal properties. The physicochemical parameters of natural honeys, such as moisture, reducing sugars, sucrose, hydroxymethylfurfural (HMF), free acidity, diastase activity, water-insoluble content and electrical conductivity are strictly defined and constitute the quality indicators which characterize individual honey varieties. The present study shows results of honey quality investigation from various regions of Serbia, which were evaluated according to the Serbian Regulation. A total of 372 honey samples (132 acacia honey, 221 blossom honey and 19 honeydew honey) were obtained from the Serbian market. All applied methods were performed according to the Harmonized Methods of the International Honey Commission. Summarizing the results presented, the most important parameters for detecting honey that was non-compliant with the regulation were HMF content along with diastase activity and sugar content. Results show that in 2014 and 2015, a great number of honey samples were of insufficient quality to satisfy regulatory requirements. In 2016, the situation on the Serbian honey market improved and became more under control.

  11. Honey Quality as Affected by Handling, Processing and Marketing Channels in Uganda

    Directory of Open Access Journals (Sweden)

    Nabakabya, D.

    2008-01-01

    Full Text Available The factors that affect honey quality in Uganda were surveyed in 120 beekeeping households. Honey was sampled from supermarkets, hawkers and stall markets along four transects across Kampala, the capital. Honey quality parameters assessed were diastase number (DN, free acidity (FA, moisture content (MC, hydroxymethylfurfural (HMF, and water insoluble solids (WIS. Honey was mostly harvested from basket and grass hives. Pressing, boiling and straining were popular honey processing methods. Honey quality was mainly compromised by harvesting immature honey, bad extraction methods and contamination by extraneous materials. Constraints to beekeeping were lack of appropriate equipment (52%, inadequate farmer skills, bad weather and vermin. Honey brands differed (P< 0.05 in DN, most failed the Uganda and Codex Alimentarius standards, and 20% met European Union HMF and DN standards. Correlation was observed between HMF vs. DN (r= 0.94; MC vs. FA (r= 0.56. Supermarket honey (4.65 was more superior (P< 0.05 in DN than stall markets (1.93, and hawkers (2.3. Similarly, WIS levels differed (P< 0.05 between honeys from supermarkets (0.08, stall markets (3.0 and hawkers (3.15. All honeys met MC standards, while DN and WIS were major shortcomings. Farmer training and extension in proper honey harvesting, handling and processing should be strengthened. Quality monitoring at all levels should be emphasized.

  12. Blue light enhances the antimicrobial activity of honey against Pseudomonas aeruginosa

    Science.gov (United States)

    Orlandi, Viviana Teresa; Bolognese, Fabrizio; Barbieri, Paola

    2018-02-01

    Pseudomonas aeruginosa may be isolated from skin wounds of burn patients, bedsore and diabetic ulcers. The healing of wounds is often impaired by the intrinsic antibiotic resistance, the tolerance to many antimicrobials and the ability to form biofilm of this opportunistic pathogen. Finding new topical treatments to combine with antibiotics is thus essential. Among natural products, the antimicrobial properties of honeys have been known for millennia. In this study honey and visible light have been combined to control the growth of P. aeruginosa PAO1. The irradiation by a broad spectrum light source of bacteria inoculated onto 2 % w/v fir and forest honeydew (HD) honeys caused a killing effect that the honeys alone or the light alone did not show. This antimicrobial activity was light energy-dose and honey-concentration dependent. Among the tested honeys, the fir and forest HD honeys were the most efficient ones. In particular, the irradiation by blue LED (λmax = 466 nm) yielded good rates of killing, that were significantly higher in comparison to irradiation alone and honey alone. Interestingly, a similar effect was obtained by plating bacteria on blue LED pre-irradiated HD honeys. The combined use of honey and blue light was also successful in inhibiting the biofilm formation of P. aeruginosa. The blue LED irradiation of PAO1 administered with 10 % w/v forest HD honey significantly enhanced the inhibition of biofilm formation in comparison to dark incubated honey.

  13. Persistence of echimidine, a hepatotoxic pyrrolizidine alkaloid, from honey into mead

    Science.gov (United States)

    Honey produced by bees foraging on Echium plantagineum is known to contain dehydropyrrolizidine alkaloids characteristic of the plant. Following a prolific growth of E. plantagineum in the wake of Australian bushfires, two samples of mead, a fermented drink made from honey, and the honey used to pre...

  14. High 5-hydroxymethylfurfural concentrations are found in Malaysian honey samples stored for more than one year.

    Science.gov (United States)

    Khalil, M I; Sulaiman, S A; Gan, S H

    2010-01-01

    5-Hydroxymethylfurfural (HMF) content is an indicator of the purity of honey. High concentrations of HMF in honey indicate overheating, poor storage conditions and old honey. This study investigated the HMF content of nine Malaysian honey samples, as well as the correlation of HMF formation with physicochemical properties of honey. Based on the recommendation by the International Honey Commission, three methods for the determination of HMF were used: (1) high performance liquid chromatography (HPLC), (2) White spectrophotometry and (3) Winkler spectrophotometry methods. HPLC and White spectrophotometric results yielded almost similar values, whereas the Winkler method showed higher readings. The physicochemical properties of honey (pH, free acids, lactones and total acids) showed significant correlation with HMF content and may provide parameters that could be used to make quick assessments of honey quality. The HMF content of fresh Malaysian honey samples stored for 3-6 months (at 2.80-24.87 mg/kg) was within the internationally recommended value (80 mg/kg for tropical honeys), while honey samples stored for longer periods (12-24 months) contained much higher HMF concentrations (128.19-1131.76 mg/kg). Therefore, it is recommended that honey should generally be consumed within one year, regardless of the type. Copyright (c) 2010 Elsevier Ltd. All rights reserved.

  15. A review of the Italian fast reactor programme - April 1985

    International Nuclear Information System (INIS)

    Pierantoni, F.; Tavoni, R.

    1986-01-01

    On February 28th 1985 the government committee for economic planning recommended the budget for the next 1985-1989 plan of ENEA for a total amount of 5,340 billion lire. At a cabinet meeting this allocation was subsequently approved (3rd April 1985). During the same period the personnel in ENEA is expected to increase from about 5,000 people in 1985 up to 5,700 people in 1989. The largest effort is devoted to the development of the FBRs, with a total of 1,760 billion lire. This figure includes: 1,050 billion for the completion of the PEC reactor; 220 billion to be used for industrial promotion activities; this figure also covers the ENEA effort in supporting Italian industry in the design and construction of the power plant to be built in Europe after SPX-1; 250 billion will be spent on the R and D to be carried out in the ENEA centres, laboratories and facilities, mainly oriented towards verifying safety and reliability aspects of subsystems and components, including the fuel element; the balance should cover current costs and investments for services, especially in the Brasimone Centre, where the PEC reactor is under construction. As far as European cooperation is concerned, a first significant result has been achieved in the negotiation of the R and D agreement foreseen by the ''Memorandum of Understanding'' of March 2nd 1984. The delegations of different countries have completed an agreed text, whose signing is expected in the coming months. The Italian attitude is to aim to achieve a coherent framework of agreements between utilities, industries and research bodies so as to ensure that the construction of the power station following SPX-1 can actually be the first step towards a European '' Common model'' fast breeder reactor plant. In 1984 the sum assigned by ENEA for fast reactors was about 380 billion lire of which 287 billion was for the PEC reactor

  16. Breeding performance in the Italian chicken breed Mericanel della Brianza

    Directory of Open Access Journals (Sweden)

    Stefano P. Marelli

    2010-11-01

    Full Text Available In Italy, 90 local avian breeds were described, the majority (61% were classified extinct and only 8.9 % still diffused. Therefore, efforts for conservation of Italian avian breeds are urgently required. The aim of this study was to record the breeding performance of the Italian breed Mericanel della Brianza and multiply a small population, in order to develop a conservation program. Fourteen females and 8 males were available at the beginning of the reproductive season in 2009 and organized in 8 families (1 male/1-2 females kept in floor pens. Birds received a photoperiod of 14L:10D and fed ad libitum. Breeding performance was recorded from March to June. Egg production and egg weight were recorded daily; eggs were set every 2 weeks and fertility, embryo mortality and hatchability were recorded. Mean egg production was 37% and mean egg weight was 34±3.49 g. High fertility values were recorded in the first three settings, from 94 to 87%, and the overall mean fertility value was 81.6%. Overall hatchability was only 49.6% due to a high proportion of dead embryos. Embryo mortality occurred mainly between day 2 and 7 of incubation and during hatch. Highest hatchability values were recorded in setting 1 and 2, 69 and 60% respectively, and a great decrease was found in the following settings. Great variations in egg production, fertility, hatchability and embryo mortality were found among families. The present results are the basic knowledge on reproductive parameters necessary to improve the reproductive efficiency of the breed within a conservation plan.

  17. Of Tears and Tarantulas: Folk Religiosity, de Martino’s Ethnology, and the Italian South

    OpenAIRE

    Falasca Zamponi, Simonetta

    2014-01-01

    This paper discusses the Italian ethnographer Ernesto de Martino’s investigation of ritual crying in Southern Italy, bringing to the fore the role ethnology was called to play as a new twentieth-century discipline that emerged from the forced encounter between powerful “advanced” nations and societies “without history.”  Ethnology sought to analyze the impact of cultural norms on a world increasingly polarized between the inevitable march towards rational modernity and the appeal of a magical...

  18. Interactions between Cooccurring Lactic Acid Bacteria in Honey Bee Hives.

    Science.gov (United States)

    Rokop, Z P; Horton, M A; Newton, I L G

    2015-10-01

    In contrast to the honey bee gut, which is colonized by a few characteristic bacterial clades, the hive of the honey bee is home to a diverse array of microbes, including many lactic acid bacteria (LAB). In this study, we used culture, combined with sequencing, to sample the LAB communities found across hive environments. Specifically, we sought to use network analysis to identify microbial hubs sharing nearly identical operational taxonomic units, evidence which may indicate cooccurrence of bacteria between environments. In the process, we identified interactions between noncore bacterial members (Fructobacillus and Lactobacillaceae) and honey bee-specific "core" members. Both Fructobacillus and Lactobacillaceae colonize brood cells, bee bread, and nectar and may serve the role of pioneering species, establishing an environment conducive to the inoculation by honey bee core bacteria. Coculture assays showed that these noncore bacterial members promote the growth of honey bee-specific bacterial species. Specifically, Fructobacillus by-products in spent medium supported the growth of the Firm-5 honey bee-specific clade in vitro. Metabolic characterization of Fructobacillus using carbohydrate utilization assays revealed that this strain is capable of utilizing the simple sugars fructose and glucose, as well as the complex plant carbohydrate lignin. We tested Fructobacillus for antibiotic sensitivity and found that this bacterium, which may be important for establishment of the microbiome, is sensitive to the commonly used antibiotic tetracycline. Our results point to the possible significance of "noncore" and environmental microbial community members in the modulation of honey bee microbiome dynamics and suggest that tetracycline use by beekeepers should be limited. Copyright © 2015, American Society for Microbiology. All Rights Reserved.

  19. Electric power monthly, March 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-20

    This report for March 1995, presents monthly electricity statistics for a wide audience including Congress, Federal and State agencies, the electric utility industry, and the general public. The purpose of this publication is to provide energy decisionmakers with accurate and timely information that may be used in forming various perspectives on electric issues that lie ahead.

  20. IDRC Bulletin — March 2017

    International Development Research Centre (IDRC) Digital Library (Canada)

    IDRC Bulletin — March 2017. Featured this month. Nighat Dad. Protecting digital rights in Pakistan. Nighat Dad is winning global accolades for her quest to protect women's safety on the Internet, while urging governments to balance cyber security with citizen rights. Find out how. News. Research for a climate-smart world.

  1. RE-SONANCEI March 1996

    Indian Academy of Sciences (India)

    Maynard Smith says" fifteen years later, when I decided to leave engineering and train as a biologist, I entered. RESONANCE I March 1996. S Thangavelu is with Statistics and Mathematics Unit,. Indian Statistical Institute, R V College Post, Banga- lore 560 059. University College, London, where Haldane was at that time a ...

  2. Monthly energy review: March 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    This is the March report by the Energy Information Administration. The contents of the report include an article on current and potential markets for alternative-fuel vehicles, an energy overview, and data on energy consumption, petroleum, natural gas, oil and gas resource development, coal, electricity, nuclear energy, energy prices, and international energy. 32 figs., 88 tabs.

  3. Electrical Energy Overview March 2012

    International Nuclear Information System (INIS)

    2012-03-01

    This publication presents the electricity characteristics and noteworthy developments in France every month: consumption, generation, renewable energies, cross-border trades and transmission system developments, along with feedback on the highlights affecting this data. This issue presents the key figures for March 2012

  4. Loglines. March-April 2015

    Science.gov (United States)

    2015-04-01

    perform tasks that aren’t included in their missions when DLA already has the expertise. — David Kless 5Loglines March - April 2015 nline buyers...substandard. For example, several years ago some refrigerant on the market had contaminants that could explode under certain conditions, she said

  5. March 2010 Final for Publicat...

    African Journals Online (AJOL)

    User

    2,4,7. 4,12. Nigerian Journal of Clinical Practice. March 2010 Vol. 13 (1):70-73. OPINIONS OF NIGERIAN ... Undergraduate students are hardly taught the art of referral writing. ... complaint and steps taken by the practitioner so far, should be included in a quality referral. The quality ... institutional review committee. The data ...

  6. March 2010 Final for Publicat...

    African Journals Online (AJOL)

    User

    March 2010 Vol. 13 (1):32-36. EPISTAXIS IN SAGAMU. *OA Sogebi,**EA Oyewole ,***OA Adebajo. ABSTRACT. Background: Materials and Methods: Results: Conclusion: Key Words ... Anterior rhinoscopy: Examination of the nasal cavities through the .... post-irradiation nasopharyngeal cancer patients with internal carotid ...

  7. 75 FR 18430 - Establishment of a U.S. Honey Producer Research, Promotion, and Consumer Information Order

    Science.gov (United States)

    2010-04-12

    ... vastly greater than the total value of honey and wax produced by honey bees. Honey bees pollinate approximately one- third of the human diet each year in the United States, and more than 140 billion honey bees... grows 100% of the U.S. almond crop and supplies 80% of the world almonds. Each year, nearly one million...

  8. Is the Salivary Gland Associated with Honey Bee Recognition Compounds in Worker Honey Bees (Apis mellifera)?

    Science.gov (United States)

    Martin, Stephen J; Correia-Oliveira, Maria E; Shemilt, Sue; Drijfhout, Falko P

    2018-06-07

    Cuticular hydrocarbons (CHCs) function as recognition compounds with the best evidence coming from social insects such as ants and honey bees. The major exocrine gland involved in hydrocarbon storage in ants is the post-pharyngeal gland (PPG) in the head. It is still not clearly understood where CHCs are stored in the honey bee. The aim of this study was to investigate the hydrocarbons and esters found in five major worker honey bee (Apis mellifera) exocrine glands, at three different developmental stages (newly emerged, nurse, and forager) using a high temperature GC analysis. We found the hypopharyngeal gland contained no hydrocarbons nor esters, and the thoracic salivary and mandibular glands only contained trace amounts of n-alkanes. However, the cephalic salivary gland (CSG) contained the greatest number and highest quantity of hydrocarbons relative to the five other glands with many of the hydrocarbons also found in the Dufour's gland, but at much lower levels. We discovered a series of oleic acid wax esters that lay beyond the detection of standard GC columns. As a bee's activities changed, as it ages, the types of compounds detected in the CSG also changed. For example, newly emerged bees have predominately C 19 -C 23 n-alkanes, alkenes and methyl-branched compounds, whereas the nurses' CSG had predominately C 31:1 and C 33:1 alkene isomers, which are replaced by a series of oleic acid wax esters in foragers. These changes in the CSG were mirrored by corresponding changes in the adults' CHCs profile. This indicates that the CSG may have a parallel function to the PPG found in ants acting as a major storage gland of CHCs. As the CSG duct opens into the buccal cavity the hydrocarbons can be worked into the comb wax and could help explain the role of comb wax in nestmate recognition experiments.

  9. Effect of heat treatment on antimycotic activity of Sahara honey

    Directory of Open Access Journals (Sweden)

    Moussa Ahmed

    2014-11-01

    Full Text Available Objective: To evaluate the influence of the temperature on honey colour, polyphenol contents and antimycotic capacity and to evaluate the correlation between these parameters. Methods: Sahara honey were heated up to 25, 50, 75 and 100 °C for 15, 30 and 60 min, and their colour intensity, polyphenol contents and antimycotic capacity. The Folin-Ciocalteu test was used to determine the total polyphenol contents (TPC. The antimycotic activity was evaluated both by agar diffusion method and micro wells dilution method against the Candida albicans (C. albicans and Candida glabrata (C. glabrata. Results: Initial values for TPC in Sahara honey ranged from 0.55 to 1.14 mg of gallic acid per kg of honey, with the average value of 0.78 mg of gallic acid per kg of honey. The TPC values after heat-treatment were 0.54 to 1.54 with the average value of 1.49 mg. The minimal inhibitory concentrations before heat-treatment of Sahara honey against C. albicans and C. glabrata ranged from 3.06%-12.5% and 50% respectively. After heat-treatment the minimal inhibitory concentrations between 12.5% and 50% for C. albicans and C. glabrata, respectively. The diameters of inhibition zones of Sahara honey with 50% concentration varied from (12.67-15.00 mm by C. albicans to (14.33-15.67 mm by C. glabrata. The diameters of inhibition zones after heat-treatment at 25 and 50 °C for 15.30 and 60 min ranged from (2.00-18.67 mm by C. albicans to (8.00-16.67 mm by C. glabrata. Statistically significant relations between the TPC and the colour intensity of Sahara honey (r=0.99, P<0.05. Furthermore, the results showed that the TPC and colour is not correlated with the antimycotic capacity. Conclusions: To our knowledge this is the first report on the antimycotic capacity of Sahara honey.

  10. Comparative Study of Honey Consumption in Slovakia and Russia

    Directory of Open Access Journals (Sweden)

    Snezhanna Guziy

    2017-01-01

    Full Text Available The current situation on the food market is influenced by various diet trends including eating healthy products. The honey consumption has an increasing tendency because more and more consumers consider honey as a healthy alternative to a refined sugar. The aim of this research paper was to identify consumption patterns regarding honey in terms of annual consumption, its frequency, volume of honey per purchase, consumption structure by family members and factors affecting consumers at honey purchase. The primary data was obtained from a questionnaire survey, which was conducted in Slovakia on the sample of 316 respondents as well as in Russia on the sample of 309 respondents. For a deeper analyses several assumptions were formulated where dependencies between demographic factors (age, education and income, and annual consumption by using Chi-Square Test of Independence and Cramer´V coefficient, as well as, differences in factors affecting consumers at honey purchase by using Friedman test have been statistically tested. Based on the results it was found out that, the majority of Slovak consumers make honey reserves and prefer to buy 1 kg per purchase while the majority of Russian consumers purchase honey if necessary and prefer to buy 0.5 or 2 - 5 kg per purchase. Honey is generally consumed by all family members in both countries. The mostimportant factors for Slovak consumers was the country of origin (2.59 followed by taste (3.51, type (3.97 and price (4.18, while the least important factors were the size of packaging (6.70 and the design of packaging (6.80. For Russian consumers the most important factors werethe type (2.97, design of packaging (3.13, price (3.28 and taste (3.61 while the least important factors were the size of packaging (6.98, brand (6.50 and the country of origin (6.50. The majority of consumers in both countries consume from 2 to 5 kg annually and the only significant dependence was confirmed in case of respondents

  11. The effect of drone comb on a honey bee colony's production of honey

    OpenAIRE

    Seeley , Thomas

    2002-01-01

    International audience; This study examined the impact on a colony's honey production of providing it with a natural amount (20%) of drone comb. Over 3 summers, for the period mid May to late August, I measured the weight gains of 10 colonies, 5 with drone comb and 5 without it. Colonies with drone comb gained only 25.2 $\\pm$ 16.0 kg whereas those without drone comb gained 48.8 $\\pm$ 14.8 kg. Colonies with drone comb also had a higher mean rate of drone flights and a lower incidence of drone ...

  12. Exploring American and Italian consumer preferences for Californian and Italian red wines.

    Science.gov (United States)

    Torri, Luisa; Noble, Ann Curtis; Heymann, Hildegarde

    2013-06-01

    To increase the market share of Californian wines in other countries, wine preferences need to be explored in potential markets. This work studied the preferences of American and Italian consumers for red wines produced in California and Italy, focusing on wines made from the same varieties in each location. Descriptive analysis and consumer preference tests were performed. Americans scored each of the Californian wines significantly higher in preference than the Italian wines. In contrast, the Italian consumer preference scores for many Italian and Californian wines overlapped. By external preference mapping of the American consumer segments, the ideal flavour of one cluster was closest to the Californian Zinfandel, Merlot and Syrah, which had the 'most balanced' flavour profiles. Another cluster of Italians also preferred the Californian wines. In addition, one Italian cluster was driven by a dislike of the leather, band-aid and medicinal aromas of the Italian Merlot and Refosco. The results provided information that can contribute to wine marketing research necessary for successfully exporting Californian red wines to Italy and vice versa. © 2012 Society of Chemical Industry.

  13. The distribution of Paenibacillus larvae spores in adult bees and honey and larval mortality, following the addition of American foulbrood diseased brood or spore-contaminated honey in honey bee (Apis mellifera) colonies.

    Science.gov (United States)

    Lindström, Anders; Korpela, Seppo; Fries, Ingemar

    2008-09-01

    Within colony transmission of Paenibacillus larvae spores was studied by giving spore-contaminated honey comb or comb containing 100 larvae killed by American foulbrood to five experimental colonies respectively. We registered the impact of the two treatments on P. larvae spore loads in adult bees and honey and on larval mortality by culturing for spores in samples of adult bees and honey, respectively, and by measuring larval survival. The results demonstrate a direct effect of treatment on spore levels in adult bees and honey as well as on larval mortality. Colonies treated with dead larvae showed immediate high spore levels in adult bee samples, while the colonies treated with contaminated honey showed a comparable spore load but the effect was delayed until the bees started to utilize the honey at the end of the flight season. During the winter there was a build up of spores in the adult bees, which may increase the risk for infection in spring. The results confirm that contaminated honey can act as an environmental reservoir of P. larvae spores and suggest that less spores may be needed in honey, compared to in diseased brood, to produce clinically diseased colonies. The spore load in adult bee samples was significantly related to larval mortality but the spore load of honey samples was not.

  14. STUDIES OF CHOSEN TOXIC ELEMENTS CONCENTRATION IN MULTIFLOWER BEE HONEY

    Directory of Open Access Journals (Sweden)

    Ewa Popiela

    2011-04-01

    Full Text Available 72 544x376 Normal 0 21 false false false  The aim of the study was to determine the bioaccumulation level of chosen toxic elements (Zn, Cu, Pb, As and Cd in multiflower honey collected from Brzeg area. Biological material (honey was mineralized using the microwave technique at an elevated pressure in the microprocessor station of pressure in the type Mars 5. Quantitative analysis of elements (As, Cd, Cu, Pb and Zn was performed by plasma spectrometry method using a Varian ICP-AES apparatus. The presence of toxic elements was determined in examined biological materials. The elements fallowed the fallowing decreasing order with respect to their content of honey: Zn>Cu>Pb>As>Cd. The average concentrations of studied elements observed in multi-flower honey were as follows: 6.24 mg.kg-1 of zinc, 2.75 mg.kg-1 of copper, 0.53, 0.071, 0.042 mg.kg-1of lead, arsenic and cadmium, respectively. Lead was the most problematic in bee honey because its average content exceeded the maximum acceptable concentration. Additionally, this metal concentration was 60% higher in studied samples than allowable standard of lead content.doi:10.5219/134 

  15. Polyphenols as Possible Markers of Botanical Origin of Honey.

    Science.gov (United States)

    Gašić, Uroš M; Milojković-Opsenica, Dušanka M; Tešić, Živoslav Lj

    2017-07-01

    In recent years, the botanical and geographical origin of food has become an important topic in the context of food quality and safety, as well as consumer protection, in accordance with international standards. Finding chemical markers, especially phytochemicals, characteristic for some kind of food is the subject of interest of a significant number of researchers in the world. This paper is focused on the use of polyphenols as potential markers for the determination of botanical origin of honey. It includes a review of the polyphenols present in various honey samples and the methods for their separation and identification. Special emphasis in this paper is placed on the identification of honey polyphenols using advanced LC-MS techniques in order to find specific markers of botanical origin of honey. In this regard, this study gives an overview of the literature that describes the use of LC-MS techniques for the isolation and determination of honey polyphenols. This review focuses on the research performed in the past two decades.

  16. Urbanization Increases Pathogen Pressure on Feral and Managed Honey Bees.

    Directory of Open Access Journals (Sweden)

    Elsa Youngsteadt

    Full Text Available Given the role of infectious disease in global pollinator decline, there is a need to understand factors that shape pathogen susceptibility and transmission in bees. Here we ask how urbanization affects the immune response and pathogen load of feral and managed colonies of honey bees (Apis mellifera Linnaeus, the predominant economically important pollinator worldwide. Using quantitative real-time PCR, we measured expression of 4 immune genes and relative abundance of 10 honey bee pathogens. We also measured worker survival in a laboratory bioassay. We found that pathogen pressure on honey bees increased with urbanization and management, and the probability of worker survival declined 3-fold along our urbanization gradient. The effect of management on pathogens appears to be mediated by immunity, with feral bees expressing immune genes at nearly twice the levels of managed bees following an immune challenge. The effect of urbanization, however, was not linked with immunity; instead, urbanization may favor viability and transmission of some disease agents. Feral colonies, with lower disease burdens and stronger immune responses, may illuminate ways to improve honey bee management. The previously unexamined effects of urbanization on honey-bee disease are concerning, suggesting that urban areas may favor problematic diseases of pollinators.

  17. Urbanization Increases Pathogen Pressure on Feral and Managed Honey Bees.

    Science.gov (United States)

    Youngsteadt, Elsa; Appler, R Holden; López-Uribe, Margarita M; Tarpy, David R; Frank, Steven D

    2015-01-01

    Given the role of infectious disease in global pollinator decline, there is a need to understand factors that shape pathogen susceptibility and transmission in bees. Here we ask how urbanization affects the immune response and pathogen load of feral and managed colonies of honey bees (Apis mellifera Linnaeus), the predominant economically important pollinator worldwide. Using quantitative real-time PCR, we measured expression of 4 immune genes and relative abundance of 10 honey bee pathogens. We also measured worker survival in a laboratory bioassay. We found that pathogen pressure on honey bees increased with urbanization and management, and the probability of worker survival declined 3-fold along our urbanization gradient. The effect of management on pathogens appears to be mediated by immunity, with feral bees expressing immune genes at nearly twice the levels of managed bees following an immune challenge. The effect of urbanization, however, was not linked with immunity; instead, urbanization may favor viability and transmission of some disease agents. Feral colonies, with lower disease burdens and stronger immune responses, may illuminate ways to improve honey bee management. The previously unexamined effects of urbanization on honey-bee disease are concerning, suggesting that urban areas may favor problematic diseases of pollinators.

  18. Leptospermum Honey for Wound Care in an Extremely Premature Infant.

    Science.gov (United States)

    Esser, Media

    2017-02-01

    Neonatal wound care is challenging due to the fragility and vulnerable skin structure. Neonates are often left susceptible to the forces of their environment, leaving them open to infection when skin injury occurs. Leptospermum honey has been used successfully in adult patients, with evidence lacking in the neonatal population. This case demonstrates the management of a difficult-to-heal wound in a 23-week gestation infant. Selecting the proper treatment and products for wound healing is challenging, with little evidence-based research available for the treatment of neonatal wounds. Leptospermum honey and other adult-driven dressings have been used for neonatal wound care as well as other adult-driven dressings. This case demonstrates the benefits of Leptospermum honey as an option for neonatal wounds. This case presents the treatment and healing of an extensive wound of a 23-week gestation neonate using a hydrogel product initially and then transitioning to a Leptospermum honey dressing due to suboptimal healing. Results of this treatment included quick healing time, little to no scarring, and no loss of movement or function to the affected extremities. The incorporation of Leptospermum honey for wound care has the potential to promote faster wound healing, with less scarring in the neonatal population. Adult wound care principles have been applied in the face of a weak evidence base relating to neonatal-specific cases. There is a need for continued research related to moist wound healing in the neonatal population, with resulting product and practice recommendations.

  19. Nosema ceranae escapes fumagillin control in honey bees.

    Directory of Open Access Journals (Sweden)

    Wei-Fone Huang

    2013-03-01

    Full Text Available Fumagillin is the only antibiotic approved for control of nosema disease in honey bees and has been extensively used in United States apiculture for more than 50 years for control of Nosema apis. It is toxic to mammals and must be applied seasonally and with caution to avoid residues in honey. Fumagillin degrades or is diluted in hives over the foraging season, exposing bees and the microsporidia to declining concentrations of the drug. We showed that spore production by Nosema ceranae, an emerging microsporidian pathogen in honey bees, increased in response to declining fumagillin concentrations, up to 100% higher than that of infected bees that have not been exposed to fumagillin. N. apis spore production was also higher, although not significantly so. Fumagillin inhibits the enzyme methionine aminopeptidase2 (MetAP2 in eukaryotic cells and interferes with protein modifications necessary for normal cell function. We sequenced the MetAP2 gene for apid Nosema species and determined that, although susceptibility to fumagillin differs among species, there are no apparent differences in fumagillin binding sites. Protein assays of uninfected bees showed that fumagillin altered structural and metabolic proteins in honey bee midgut tissues at concentrations that do not suppress microsporidia reproduction. The microsporidia, particularly N. ceranae, are apparently released from the suppressive effects of fumagillin at concentrations that continue to impact honey bee physiology. The current application protocol for fumagillin may exacerbate N. ceranae infection rather than suppress it.

  20. Ecological adaptation of diverse honey bee (Apis mellifera populations.

    Directory of Open Access Journals (Sweden)

    Robert Parker

    Full Text Available BACKGROUND: Honey bees are complex eusocial insects that provide a critical contribution to human agricultural food production. Their natural migration has selected for traits that increase fitness within geographical areas, but in parallel their domestication has selected for traits that enhance productivity and survival under local conditions. Elucidating the biochemical mechanisms of these local adaptive processes is a key goal of evolutionary biology. Proteomics provides tools unique among the major 'omics disciplines for identifying the mechanisms employed by an organism in adapting to environmental challenges. RESULTS: Through proteome profiling of adult honey bee midgut from geographically dispersed, domesticated populations combined with multiple parallel statistical treatments, the data presented here suggest some of the major cellular processes involved in adapting to different climates. These findings provide insight into the molecular underpinnings that may confer an advantage to honey bee populations. Significantly, the major energy-producing pathways of the mitochondria, the organelle most closely involved in heat production, were consistently higher in bees that had adapted to colder climates. In opposition, up-regulation of protein metabolism capacity, from biosynthesis to degradation, had been selected for in bees from warmer climates. CONCLUSIONS: Overall, our results present a proteomic interpretation of expression polymorphisms between honey bee ecotypes and provide insight into molecular aspects of local adaptation or selection with consequences for honey bee management and breeding. The implications of our findings extend beyond apiculture as they underscore the need to consider the interdependence of animal populations and their agro-ecological context.

  1. Ecological adaptation of diverse honey bee (Apis mellifera) populations.

    Science.gov (United States)

    Parker, Robert; Melathopoulos, Andony P; White, Rick; Pernal, Stephen F; Guarna, M Marta; Foster, Leonard J

    2010-06-15

    Honey bees are complex eusocial insects that provide a critical contribution to human agricultural food production. Their natural migration has selected for traits that increase fitness within geographical areas, but in parallel their domestication has selected for traits that enhance productivity and survival under local conditions. Elucidating the biochemical mechanisms of these local adaptive processes is a key goal of evolutionary biology. Proteomics provides tools unique among the major 'omics disciplines for identifying the mechanisms employed by an organism in adapting to environmental challenges. Through proteome profiling of adult honey bee midgut from geographically dispersed, domesticated populations combined with multiple parallel statistical treatments, the data presented here suggest some of the major cellular processes involved in adapting to different climates. These findings provide insight into the molecular underpinnings that may confer an advantage to honey bee populations. Significantly, the major energy-producing pathways of the mitochondria, the organelle most closely involved in heat production, were consistently higher in bees that had adapted to colder climates. In opposition, up-regulation of protein metabolism capacity, from biosynthesis to degradation, had been selected for in bees from warmer climates. Overall, our results present a proteomic interpretation of expression polymorphisms between honey bee ecotypes and provide insight into molecular aspects of local adaptation or selection with consequences for honey bee management and breeding. The implications of our findings extend beyond apiculture as they underscore the need to consider the interdependence of animal populations and their agro-ecological context.

  2. Honey quality of Melipona sp. bees in Acre, Brazil

    Directory of Open Access Journals (Sweden)

    Marcus Augusto Damaceno do Vale

    2018-04-01

    Full Text Available Honey from stingless bees (Melipona sp. is a nutritious and medicinal product economically valued in the informal Brazilian market, driven by the growing demand for natural products; however, its physicochemical characteristics are still unknown. Thus, the aim of this study is to evaluate the physicochemical profile of the stingless bee honey produced in Cruzeiro do Sul, Acre. Honey samples were analyzed following the methodology recommended by Ministério da Agricultura, Pecuária e Abastecimento; the following parameters were established: moisture, total sugars, reducing sugars, apparent sucrose, ash, crude protein, diastase activity, Brix degrees, free acidity, lactonic acidity, total acidity, pH, hydroxymethylfurfural, electrical conductivity, color and Lugol, Lund and Fiehe reactions. Results show that these parameters are not suitable for all samples, being incompatible with established standards, indicating that the current legislation on Apis mellifera is not suitable for all characters analyzed, mainly moisture content, corroborating the need to standardize guidelines for honey from stingless bees. Moreover, there was no tampering in the honeys analyzed.

  3. Neural networks applied to discriminate botanical origin of honeys.

    Science.gov (United States)

    Anjos, Ofélia; Iglesias, Carla; Peres, Fátima; Martínez, Javier; García, Ángela; Taboada, Javier

    2015-05-15

    The aim of this work is develop a tool based on neural networks to predict the botanical origin of honeys using physical and chemical parameters. The managed database consists of 49 honey samples of 2 different classes: monofloral (almond, holm oak, sweet chestnut, eucalyptus, orange, rosemary, lavender, strawberry trees, thyme, heather, sunflower) and multifloral. The moisture content, electrical conductivity, water activity, ashes content, pH, free acidity, colorimetric coordinates in CIELAB space (L(∗), a(∗), b(∗)) and total phenols content of the honey samples were evaluated. Those properties were considered as input variables of the predictive model. The neural network is optimised through several tests with different numbers of neurons in the hidden layer and also with different input variables. The reduced error rates (5%) allow us to conclude that the botanical origin of honey can be reliably and quickly known from the colorimetric information and the electrical conductivity of honey. Copyright © 2014 Elsevier Ltd. All rights reserved.

  4. Range and Frequency of Africanized Honey Bees in California (USA)

    Science.gov (United States)

    Kono, Yoshiaki; Kohn, Joshua R.

    2015-01-01

    Africanized honey bees entered California in 1994 but few accounts of their northward expansion or their frequency relative to European honey bees have been published. We used mitochondrial markers and morphometric analyses to determine the prevalence of Africanized honeybees in San Diego County and their current northward progress in California west of the Sierra Nevada crest. The northernmost African mitotypes detected were approximately 40 km south of Sacramento in California’s central valley. In San Diego County, 65% of foraging honey bee workers carry African mitochondria and the estimated percentage of Africanized workers using morphological measurements is similar (61%). There was no correlation between mitotype and morphology in San Diego County suggesting Africanized bees result from bidirectional hybridization. Seventy percent of feral hives, but only 13% of managed hives, sampled in San Diego County carried the African mitotype indicating that a large fraction of foraging workers in both urban and rural San Diego County are feral. We also found a single nucleotide polymorphism at the DNA barcode locus COI that distinguishes European and African mitotypes. The utility of this marker was confirmed using 401 georeferenced honey bee sequences from the worldwide Barcode of Life Database. Future censuses can determine whether the current range of the Africanized form is stable, patterns of introgression at nuclear loci, and the environmental factors that may limit the northern range of the Africanized honey bee. PMID:26361047

  5. European energy policy and Italian national rights

    International Nuclear Information System (INIS)

    Gentile, G.G.

    1991-01-01

    In light of energy market upheavals expected as a result of the up-coming European free trade market, impacts on existing Italian energy legislation, currently hinging on the monopolistic activities of ENEL, (Italian National Electricity Board) are examined. The various aspects dealt with include: legal implications of the integration, under monopolistic and deregulated national energy market scenarios, of new legislation, on the production and distribution of renewable energy sources, with existing energy legislation; the combined effects of strong competition in a new international energy market and energy supply vulnerability due strong dependence on OPEC supplied petroleum; Italian regional economic unbalance due to the possible introduction, in a deregulated European electric power market, of a common carrier system of electric power distribution, that due to Italy's particular geography is expected to be controlled by a firm locatednear the northern border; power pooling legislation and rate structure transparency in a deregulated energy market

  6. Catholic Modernity and the Italian Constitution

    DEFF Research Database (Denmark)

    Thomassen, Bjørn; Forlenza, Rosario

    2016-01-01

    and give direction to the very idea of political modernity, bridging a positive encounter between Catholicism, democracy, and freedom. The specific argument is embedded within a larger aim to recognize attempts within Catholic philosophy and political thought to articulate a trajectory that moved away from......This article analyzes the Catholic contribution to the Italian republican and democratic Constitution of 1948. The focus is on the specific way in which the Italian citizen became symbolically coded as a ‘person’ and not as an ‘individual’, inspired by Catholic social philosophy. The Catholic...... project for the new Constitution had a considerable impact on modern Italian culture and politics and on the building of a modern mass democracy and welfare state. During the crucial historical juncture that followed the collapse of Fascism, Catholic politicians and intellectuals sought to interpret...

  7. Italian singer Annalisa at CERN for a week of filming

    CERN Multimedia

    Stefania Pandolfi

    2015-01-01

    CERN welcomed Italian singer-songwriter Annalisa for a week-long visit to the Laboratory to shoot an Italian television production about the Laboratory.   Annalisa in the CERN Control Centre.   The Italian artist has a degree in physics from the University of Turin, Italy. She is a singer and songwriter, famous for her successful participation in the Italian talent show, Amici di Maria De Filippi. She has recorded four albums as solo artist and has participated twice in the Sanremo Music Festival, the most important Italian song contest. She has also received numerous Italian music awards, and has earned international recognition. Thanks to her knowledge of physics and her great influence with the Italian youth, Annalisa was selected to host an Italian television production about CERN aimed at young people. 

  8. PHRASEOLOGY IN PARČIĆ'S CROATIAN – ITALIAN DICTIONARY

    Directory of Open Access Journals (Sweden)

    Helena Pavletić

    2005-01-01

    Full Text Available The paper analyzes and classifies the types of phraseological groups in Parčić's Croatian – Italian Dictionary comparing them with Italian equivalents and the contemporary Croatian phraseology.

  9. exiles/nomads: journeys through language and gender in italian ...

    African Journals Online (AJOL)

    User

    how Italian women's (and men's) pulp fiction is written through gender specific ... by Santacroce's heroines to travel beyond the Italian boundaries, is not limited to the ..... The character's perception of his physical environment as silent and.

  10. Homogentisic acid: a phenolic acid as a marker of strawberry-tree (Arbutus unedo) honey.

    Science.gov (United States)

    Cabras, P; Angioni, A; Tuberoso, C; Floris, I; Reniero, F; Guillou, C; Ghelli, S

    1999-10-01

    Analysis of organic acids in strawberry-tree (Arbutus unedo) honey showed the presence of an unknown acid as the main constituent. This compound was isolated and identified as homogentisic acid (2, 5-dihydroxyphenylacetic acid) by MS and NMR techniques. Its average content in honey was 378 +/- 92 mg/kg. Analysis of nectar confirmed the floral origin of the compound found in honey. Since this acid was not detected in any of the different monofloral honeys, it could be used as a marker of strawberry-tree (A. unedo) honey.

  11. Isolation of 62 kda protein with antioxidant properties from natural honey

    International Nuclear Information System (INIS)

    Mohammed, S.E.A.R.

    2014-01-01

    Fourteen natural honey samples from Libya, Sudan and Pakistan were evaluated for their antioxidant activity by employing 1,1-Diphenyl-2-picrylhydrazyl (DPPH) radical assay. The scavenging activity of honey samples were in the range of 18-32% when compared to control. A 62 kDa protein was isolated from honey by gel filtration chromatography followed by reverse phase HPLC showed significant radical scavenging activity. The research pointed out the antioxidative role of honey proteins and possibility of their contribution to the therapeutic value of the natural honey. (author)

  12. DETERMINING COSTS-RETURNS PROFITABILITY IN HONEY MARKETING IN CROSS RIVER STATE, NIGERIA

    OpenAIRE

    Adinya, I.B; Ayuk, E.A; Akpet, S.O; Agiopu, B.F

    2017-01-01

    This study examined costs-returns profitability in honey marketing in Cross River State. Honey contains 29 percent of protein, 19 percent of amino acid, vitamins and minerals for bodybuilding. Honey mixed with aloe vera gel is use for cure of dandruff and rapid hair growth. This mixture could also help to prevent hair breakage. Honey pollen enhances vitality and brings about a longer life span. Data were obtained from a random sample of 120 honey marketers in the study area by means of struct...

  13. Italian Validation of Homophobia Scale (HS

    Directory of Open Access Journals (Sweden)

    Giacomo Ciocca, PsyD, PhD

    2015-09-01

    Conclusions: The Italian validation of the HS revealed the use of this self‐report test to have good psychometric properties. This study offers a new tool to assess homophobia. In this regard, the HS can be introduced into the clinical praxis and into programs for the prevention of homophobic behavior. Ciocca G, Capuano N, Tuziak B, Mollaioli D, Limoncin E, Valsecchi D, Carosa E, Gravina GL, Gianfrilli D, Lenzi A, and Jannini EA. Italian validation of Homophobia Scale (HS. Sex Med 2015;3:213–218.

  14. Monthly energy review, March 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This is an overview of the March 1997 energy statistics by the Energy Information Administration. The Contents of the report include an update on the effects of Title IV of the Clean Air Act Amendments of 1990 on electric utilities, an energy overview, US energy production, energy consumption, trade stocks and prices for petroleum, natural gas, oil and gas resource development, coal, electricity, nuclear energy, energy prices, and international energy. 37 figs., 60 tabs.

  15. Analyses of avocado (Persea americana) nectar properties and their perception by honey bees (Apis mellifera).

    Science.gov (United States)

    Afik, O; Dag, A; Kerem, Z; Shafir, S

    2006-09-01

    Honey bees are important avocado pollinators. However, due to the low attractiveness of flowers, pollination is often inadequate. Previous work has revealed that avocado honey is relatively unattractive to honey bees when compared with honey from competing flowers. We characterized avocado honey and nectar with respect to their odor, color, and composition of sugars, phenolic compounds, and minerals. Furthermore, we tested how honey bees perceive these parameters, using the proboscis extension response bioassay and preference experiments with free-flying bees. Naïve bees were indifferent to odors of avocado and citrus flowers and honey. Experienced bees, which were collected in the field during the blooming season, responded preferentially to odor of citrus flowers. The unique sugar composition of avocado nectar, which contains almost exclusively sucrose and a low concentration of the rare carbohydrate perseitol, and the dark brown color of avocado honey, had no negative effects on its attractiveness to the bees. Phenolic compounds extracted from avocado honey were attractive to bees and adding them to a solution of sucrose increased its attractiveness. Compared with citrus nectar and nonavocado honey, avocado nectar and honey were rich in a wide range of minerals, including potassium, phosphorus, magnesium, sulfur, iron, and copper. Potassium and phosphorus, the two major minerals, both had a repellent effect on the bees. Possible explanations for the presence of repellent components in avocado nectar are discussed.

  16. Physicochemical characteristics, total phenols and pigments of national and international honeys in Saudi Arabia

    Directory of Open Access Journals (Sweden)

    Abdulaziz S. Alqarni

    2016-01-01

    Full Text Available In 23 types of honey from Saudi Arabia and six other countries, the levels of some minor components and floral pigments as well as physicochemical characteristics were investigated. Most tested Saudi honeys, e.g. Acacia and Seder showed high values of density and total soluble solids and low water content compared to exotic ones. Some Acacia and Manuka samples had higher HMF contents than permitted levels. All the tested honeys were acidic; however Acacia honey had total acidity values over those of permitted levels, while most of the remainding types were comparable or acceptable. Also, Saudi Acacia and Egyptian honeys contained more content of total nitrogen, free amino acids and proline than those of the other tested types. Dark-colored honeys e.g. Acacia contained more phenolic content than those of the light-colored ones. Carotenoids were the predominant floral pigments in all the tested honeys, while xanthophylls and anthocyanins were the least predominant ones. Seder honeys showed moderate values of the tested characteristics compared to other types. The tested parameters are useful to determine the botanical origin of Saudi or exotic honeys and their quality. Further research on specific physicochemical properties of Saudi Acacia honey especially acidity is very much recommended. New criteria based on the regional characteristics of Saudi honeys including antioxidants, micro-constituents are suggested.

  17. Unique Pattern of Protein-Bound Maillard Reaction Products in Manuka (Leptospermum scoparium) Honey.

    Science.gov (United States)

    Hellwig, Michael; Rückriemen, Jana; Sandner, Daniel; Henle, Thomas

    2017-05-03

    As a unique feature, honey from the New Zealand manuka tree (Leptospermum scoparium) contains substantial amounts of dihydroxyacetone (DHA) and methylglyoxal (MGO). Although MGO is a reactive intermediate in the Maillard reaction, very little is known about reactions of MGO with honey proteins. We hypothesized that the abundance of MGO should result in a particular pattern of protein-bound Maillard reaction products (MRPs) in manuka honey. A protein-rich high-molecular-weight fraction was isolated from 12 manuka and 8 non-manuka honeys and hydrolyzed enzymatically. By HPLC-MS/MS, 8 MRPs, namely, N-ε-fructosyllysine, N-ε-maltulosyllysine, carboxymethyllysine, carboxyethyllysine (CEL), pyrraline, formyline, maltosine, and methylglyoxal-derived hydroimidazolone 1 (MG-H1), were quantitated. Compared to non-manuka honeys, the manuka honeys were characterized by high concentrations of CEL and MG-H1, whereas the formation of N-ε-fructosyllysine was suppressed, indicating concurrence reactions of glucose and MGO at the ε-amino group of protein-bound lysine. Up to 31% of the lysine and 8% of the arginine residues, respectively, in the manuka honey protein can be modified to CEL and MG-H1, respectively. CEL and MG-H1 concentrations correlated strongly with the MGO concentration of the honeys. Manuka honey possesses a special pattern of protein-bound MRPs, which might be used to prove the reliability of labeled MGO levels in honeys and possibly enable the detection of fraudulent MGO or DHA addition to honey.

  18. 75 FR 64611 - Italian American Heritage and Culture Month, 2010

    Science.gov (United States)

    2010-10-19

    .... As we honor the long history and vast contributions of Italian Americans, let us recommit to... society and steer the course of our history. During Italian American Heritage and Culture Month, we... Culture Month. I call upon all Americans to learn more about the history of Italian Americans, and to...

  19. Botanical origin, colour, granulation, and sensory properties of the Harenna forest honey, Bale, Ethiopia.

    Science.gov (United States)

    Belay, Abera; Solomon, W K; Bultossa, Geremew; Adgaba, Nuru; Melaku, Samuel

    2015-01-15

    In this study, the Harenna forest honey samples were investigated with respect to their botanical origin, granulation, colour and sensory properties. Sixteen honey samples were collected from two representative sites (Chiri, C, and Wabero, W) using random sampling techniques. Botanical origin was investigated using qualitative pollen analysis by counting 500 pollen grains using harmonised methods of melissopalynology. Granulation, colour, and sensory properties of honey were determined by visual observation, using Pfund grader, acceptability and preference tests, respectively. Honey samples were also tested for tetracycline. Honey obtained from Wabero is originated dominantly from Syzygium guineense while Chiri was multifloral. The colour of honey ranged from 34 to 85 with light amber and extra light amber colours. The honey samples were free from tetracycline residue and form coarse granules slowly. Significant variation (p>0.05) in sensory preference and acceptability tests not observed due to hive types and locations. Copyright © 2014 Elsevier Ltd. All rights reserved.

  20. Compostos voláteis em méis florais Volatile compounds in floral honeys

    Directory of Open Access Journals (Sweden)

    Carlos Alberto Bastos De Maria

    2003-01-01

    Full Text Available A review about origin, composition and importance of volatile compounds in floral honeys is presented. Hydrocarbons, aromatic components, acids, diacids, terpenoids, ketones, aldehydes, esters and alcohols have been found in honey aroma of different botanical origin. Cis-rose oxide has been proposed as an indicator for Tilia cordata honey. Citrus honeys are known to contain methyl anthranilate, a compound which other honeys virtually lack. Linalool, phenylethylalcohol, phenylacetaldehyde, p-anisaldehyde and benzaldehyde are important contributors for the aroma of different unifloral honeys. Both isovaleric acid, gama-decalactone and benzoic acid appears to be important odourants for Anarcadium occidentale and Croton sp. honeys from Brazil. The furfurylmercaptan, benzyl alcohol, delta-octalactone, eugenol, phenylethylalcohol and guaiacol appear to be only relevant compounds for Anarcadium occidentale. The vanillin was considered an important odourant only for Croton sp..

  1. Investigation of some factors related to antibacterial activity of Saudi honey

    International Nuclear Information System (INIS)

    Al-Brahim, Jehan Saud Rashid

    2006-01-01

    Honey was found to have a curing effect on bacterial species known to cause wound infections. The aim of this research was to study some of the factors related to the antibacterial activity of a Saudi Honey. Honey samples from different floral sources, geographic locations and production season were used. The tested organisms presented both gram positive and gram negative bacteria causing wound infection. A zone of complete inhibition of all bacterial species was observed with honey types Samra (S-W), Samra (W-S), Saha (W-S), Samra (S-S), Sidir (S-W) and a larger zone of partial inhibition of growth was observed in all tested honey types. It can be concluded that osmolarity is involved in the antibacterial activity of the honey. Acidity might be regarded as being of primary importance. On the other hand, hydrogen peroxide was found to play a major role in the bacterial activity of honey. (author)

  2. Detection of Spiroplasma melliferum in honey bee colonies in the US.

    Science.gov (United States)

    Zheng, Huo-Qing; Chen, Yan Ping

    2014-06-01

    Spiroplasma infections in honey bees have been reported in Europe and Asia quite recently, due to intensive studies on the epidemiology of honey bee diseases. The situation in the US is less well analyzed. Here, we examined the honey bee colonies in Beltsville, MD, where Spiroplasmamelliferum was originally reported and found S. melliferum infection in honey bees. Our data showed high variation of S. melliferum infection in honey bees with a peak prevalence in May during the course of one-year study period. The colony prevalence increased from 5% in February to 68% in May and then decreased to 25% in June and 22% in July. Despite that pathogenicity of spiroplasmas in honey bee colonies remains to be determined, our results indicated that spiroplasma infections need to be included for the consideration of the impacts on honey bee health. Published by Elsevier Inc.

  3. Honeybee (Apis cerana) foraging responses to the toxic honey of Tripterygium hypoglaucum (Celastraceae): changing threshold of nectar acceptability.

    Science.gov (United States)

    Tan, K; Guo, Y H; Nicolson, S W; Radloff, S E; Song, Q S; Hepburn, H R

    2007-12-01

    To investigate honeybee foraging responses to toxic nectar, honey was collected from Apis cerana colonies in the Yaoan county of Yunnan Province, China, during June, when flowers of Tripterygium hypoglaucum were the main nectar source available. Pollen analysis confirmed the origin of the honey, and high-performance liquid chromatography showed the prominent component triptolide to be present at a concentration of 0.61 mug/g +/- 0.11 SD. In cage tests that used young adult worker bees, significantly more of those provided with a diet of T. hypoglaucum honey mixed with sugar powder (1:1) died within 6 d (68.3%) compared to control groups provided with normal honey mixed with sugar powder (15.8%). Honeybees were trained to visit feeders that contained honey of T. hypoglaucum (toxic honey) as the test group and honey of Vicia sativa or Elsholtzia ciliata as control groups (all honeys diluted 1:3 with water). Bees preferred the feeders with normal honey to those with toxic honey, as shown by significantly higher visiting frequencies and longer imbibition times. However, when the feeder of normal honey was removed, leaving only honey of T. hypoglaucum, the foraging bees returned to the toxic honey after a few seconds of hesitation, and both visiting frequency and imbibition time increased to values previously recorded for normal honey. Toxic honey thus became acceptable to the bees in the absence of other nectar sources.

  4. Mineral content of the honey produced in Zulia state, Venezuela.

    Science.gov (United States)

    Sulbarán de Ferrer, Betzabé; Ojeda de Rodríguez, Graciela; Peña, Jorge; Martínez, Janeth; Morán, María

    2004-09-01

    The mineral content of the honey produced in five zones of the Zulia state, Venezuela, during dry and rainy seasons was determined. The analyzed elements were: sodium, potassium (by emission spectroscopy), calcium, magnesium, copper, iron, manganese (by atomic absorption spectroscopy), phosphorus (phosphate ions, by colorimetric method), and ash content of raw honey samples directly collected from different beekeepers. The mean values for Na, K, Ca, Mg, Cu, Fe, Mn, and P were 353+84; 1774+138; 237+66; 52+24; 0.76+0.43; 13.5+10.23; 0.92+0.42 and 1642+323 mg/kg respectively. The mean ash content was 0.431+0.15%. Potassium was the most abundant of the elements determined. This results confirm that Zulian honey can be considered a good source of minerals.

  5. Genic control of honey bee dance language dialect.

    Science.gov (United States)

    Rinderer, T E; Beaman, L D

    1995-10-01

    Behavioural genetic analysis of honey bee dance language shows simple Mendelian genic control over certain dance dialect differences. Worker honey bees of one parent colony (yellow) changed from round to transition dances for foraging distances of 20 m and from transition to waggle dances at 40 m. Worker bees of the other parent colony (black) made these shifts at 30 m and 90 m, respectively. F1 colonies behaved identically to their yellow parent, suggesting dominance. Progeny of backcrossing between the F1 generation and the putative recessive black parent assorted to four classes, indicating that the dialect differences studied are regulated by genes at two unlinked loci, each having two alleles. Honey bee dance communication is complex and highly integrated behaviour. Nonetheless, analysis of a small element of this behaviour, variation in response to distance, suggests that dance communication is regulated by subsets consisting of simple genic systems.

  6. Effect of gamma radiation on honey quality control

    International Nuclear Information System (INIS)

    Bera, A.; Almeida-Muradian, L.B.; Sabato, S.F.

    2009-01-01

    Honey is one of the most complex substances produced by bees, mainly from the nectar of flowers. Gamma radiation is a technique that can be used to decrease the number of microbiological problems associated with food and increase the shelf life of certain products. The objective of this study was to verify the effect of gamma radiation with source of cobalto-60 (10 kGy) on some parameters used in honey quality control. Seven samples of pure honey were obtained from local markets in Sao Paulo, Brazil, in 2007. The methods used are in accordance with Brazilian Regulations. The physicochemical parameters analyzed were: moisture, HMF, free acidity, pH, sugars and ash. The results showed that gamma radiation, in the dose mentioned above, did not cause significant physicochemical alterations.

  7. Effect of gamma radiation on honey quality control

    Energy Technology Data Exchange (ETDEWEB)

    Bera, A. [Radiation Technology Center, IPEN-CNEN/SP, A. Lineu Prestes, 2242, 05508-000 Sao Paulo (Brazil)], E-mail: berale@usp.br; Almeida-Muradian, L.B. [Av. Prof. Lineu Prestes, 580-Cidade Universitaria, Sao Paulo (Brazil); Sabato, S.F. [Radiation Technology Center, IPEN-CNEN/SP, A. Lineu Prestes, 2242, 05508-000 Sao Paulo (Brazil)], E-mail: sfsabato@ipen.br

    2009-07-15

    Honey is one of the most complex substances produced by bees, mainly from the nectar of flowers. Gamma radiation is a technique that can be used to decrease the number of microbiological problems associated with food and increase the shelf life of certain products. The objective of this study was to verify the effect of gamma radiation with source of cobalto-60 (10 kGy) on some parameters used in honey quality control. Seven samples of pure honey were obtained from local markets in Sao Paulo, Brazil, in 2007. The methods used are in accordance with Brazilian Regulations. The physicochemical parameters analyzed were: moisture, HMF, free acidity, pH, sugars and ash. The results showed that gamma radiation, in the dose mentioned above, did not cause significant physicochemical alterations.

  8. Assessing grooming behavior of Russian honey bees toward Varroa destructor.

    Science.gov (United States)

    The grooming behavior of Russian bees was compared to Italian bees. Overall, Russian bees had significantly lower numbers of mites than the Italian bees with a mean of 1,937 ± 366 and 5,088 ± 733 mites, respectively. This low mite population in the Russian colonies was probably due to the increased ...

  9. Microbiological assessment of honey in México.

    Science.gov (United States)

    Vázquez-Quiñones, Carlos Ramón; Moreno-Terrazas, Rúben; Natividad-Bonifacio, Iván; Quiñones-Ramírez, Elsa Irma; Vázquez-Salinas, Carlos

    Honey is a product used as a natural sweetener and in several regions of Mexico and other countries it is also used as a therapeutic agent. Microbiological contamination of honey can occur during its extraction and handling. Due to the use and consumption of honey we highlighted here the importance of the assessment of its microbiological quality. One thousand nine hundred twenty samples obtained from 8 honey-producing states from Mexico were analyzed. From these samples, 40.5% (777/1920) did not comply with the NMX-036-NORMEX-2006 specification. Forty five percent (777/1920) of the samples did not comply with the mesophilic aerobic microorganism specification, neither did 17% (327/1920) of the samples with the specification for molds and 18.1% (348/1920) with the specification for yeasts. With regard to coliform bacteria, the samples contained less than 3 NMP/g. Two percent of the samples contained lactic acid bacteria (LAB), Clostridium perfringens was observed in amounts of more than 100CFU/g. None of the samples from the different states contained more than 100CFU/g of Staphylococcus aureus; Salmonella spp. was absent in all samples. It is important to avoid contamination sources and implement good hygienic practices in order to maintain and improve the quality of Mexican honeys since a large percentage of them are intended for export. If these honeys are intended for therapeutic use, it is necessary to ensure that they comply with all quality parameters and to apply specific treatments that guarantee the removal of any pathogen that may represent a risk to the patients's health. Copyright © 2017 Asociación Argentina de Microbiología. Publicado por Elsevier España, S.L.U. All rights reserved.

  10. Detection of plant microRNAs in honey.

    Directory of Open Access Journals (Sweden)

    Angelo Gismondi

    Full Text Available For the first time in the literature, our group has managed to demonstrate the existence of plant RNAs in honey samples. In particular, in our work, different RNA extraction procedures were performed in order to identify a purification method for nucleic acids from honey. Purity, stability and integrity of the RNA samples were evaluated by spectrophotometric, PCR and electrophoretic analyses. Among all honey RNAs, we specifically revealed the presence of both plastidial and nuclear plant transcripts: RuBisCO large subunit mRNA, maturase K messenger and 18S ribosomal RNA. Surprisingly, nine plant microRNAs (miR482b, miR156a, miR396c, miR171a, miR858, miR162a, miR159c, miR395a and miR2118a were also detected and quantified by qPCR. In this context, a comparison between microRNA content in plant samples (i.e. flowers, nectars and their derivative honeys was carried out. In addition, peculiar microRNA profiles were also identified in six different monofloral honeys. Finally, the same plant microRNAs were investigated in other plant food products: tea, cocoa and coffee. Since plant microRNAs introduced by diet have been recently recognized as being able to modulate the consumer's gene expression, our research suggests that honey's benefits for human health may be strongly correlated to the bioactivity of plant microRNAs contained in this matrix.

  11. Potential protective effect of honey against paracetamol-induced hepatotoxicity.

    Science.gov (United States)

    Galal, Reem M; Zaki, Hala F; Seif El-Nasr, Mona M; Agha, Azza M

    2012-11-01

    Paracetamol overdose causes severe hepatotoxicity that leads to liver failure in both humans and experimental animals. The present study investigates the protective effect of honey against paracetamol-induced hepatotoxicity in Wistar albino rats. We have used silymarin as a standard reference hepatoprotective drug. Hepatoprotective activity was assessed by measuring biochemical parameters such as the liver function enzymes, serum alanine aminotransferase (ALT) and serum aspartate aminotransferase (AST). Equally, comparative effects of honey on oxidative stress biomarkers such as malondialdyhyde (MDA), reduced glutathione (GSH) and glutathione peroxidase (GPx) were also evaluated in the rat liver homogenates.  We estimated the effect of honey on serum levels and hepatic content of interleukin-1beta (IL-1β) because the initial event in paracetamol-induced hepatotoxicity has been shown to be a toxic-metabolic injury that leads to hepatocyte death, activation of the innate immune response and upregulation of inflammatory cytokines. Paracetamol caused marked liver damage as noted by significant increased activities of serum AST and ALT as well as the level of Il-1β. Paracetamol also resulted in a significant decrease in liver GSH content and GPx activity which paralleled an increase in Il-1β and MDA levels. Pretreatment with honey and silymarin prior to the administration of paracetamol significantly prevented the increase in the serum levels of hepatic enzyme markers, and reduced both oxidative stress and inflammatory cytokines. Histopathological evaluation of the livers also revealed that honey reduced the incidence of paracetamol-induced liver lesions. Honey can be used as an effective hepatoprotective agent against paracetamol-induced liver damage.

  12. Learning impairment in honey bees caused by agricultural spray adjuvants.

    Directory of Open Access Journals (Sweden)

    Timothy J Ciarlo

    Full Text Available BACKGROUND: Spray adjuvants are often applied to crops in conjunction with agricultural pesticides in order to boost the efficacy of the active ingredient(s. The adjuvants themselves are largely assumed to be biologically inert and are therefore subject to minimal scrutiny and toxicological testing by regulatory agencies. Honey bees are exposed to a wide array of pesticides as they conduct normal foraging operations, meaning that they are likely exposed to spray adjuvants as well. It was previously unknown whether these agrochemicals have any deleterious effects on honey bee behavior. METHODOLOGY/PRINCIPAL FINDINGS: An improved, automated version of the proboscis extension reflex (PER assay with a high degree of trial-to-trial reproducibility was used to measure the olfactory learning ability of honey bees treated orally with sublethal doses of the most widely used spray adjuvants on almonds in the Central Valley of California. Three different adjuvant classes (nonionic surfactants, crop oil concentrates, and organosilicone surfactants were investigated in this study. Learning was impaired after ingestion of 20 µg organosilicone surfactant, indicating harmful effects on honey bees caused by agrochemicals previously believed to be innocuous. Organosilicones were more active than the nonionic adjuvants, while the crop oil concentrates were inactive. Ingestion was required for the tested adjuvant to have an effect on learning, as exposure via antennal contact only induced no level of impairment. CONCLUSIONS/SIGNIFICANCE: A decrease in percent conditioned response after ingestion of organosilicone surfactants has been demonstrated here for the first time. Olfactory learning is important for foraging honey bees because it allows them to exploit the most productive floral resources in an area at any given time. Impairment of this learning ability may have serious implications for foraging efficiency at the colony level, as well as potentially many

  13. 137Cs Behaviour in Chestnut Honey From Northwestern Croatia Two Decades After Chernobyl Accident

    International Nuclear Information System (INIS)

    Rozmaric Macefat, M.; Rogic, M.; Nodilo, M.; Barisic, D.; Svecnjak, L.; Bubalo, D.; Popijac, M.; Kezic, N.

    2011-01-01

    Covering the large area in nectar gathering process and searching for food, honey bees yield a unique random composite sample incorporated in honey. Thus, honey represents an excellent media for studying behaviour of bioavailable elements as well as environmental pollutants. Caesium, a product of nuclear weapon testing and Chernobyl nuclear accident, still present in soils, is transferred to plants by plant uptake. It has already been established that chestnut honey can be used as a bioindicator for monitoring 137Cs many years after the Chernobyl accident. The aim of this study was to determine whether the chestnut honey is suitable for monitoring environmental pollution with 137Cs two decades after the contamination event. Chestnut honey from northwest Croatia has been analysed during the period from 2004 to 2008, for activity concentrations of 137Cs and 40K. Honey samples were collected mechanically by extracting honey from combs. Based on the pollen analysis (> 85 % of chestnut pollen grains) and measured electrical conductivity of honey (> 0.8 mS cm -1 ), honey has been identified as unifloral chestnut honey (Castanea sativa Mill.). 137Cs and 40K activity concentrations have been determined by gamma spectrometry. Decrease of 137Cs activity in chestnut honey was approximated by linear equation. The activity concentration of 137Cs in chestnut honey decreases very slowly over the time as opposed to the activity concentrations of 40K that are more or less equable. Thus, chestnut honey can be used as a good bioindicator for 137Cs even two decades after the Chernobyl accident. (author)

  14. Antimutagenic and antibacterial properties of honey and effect of radiation hygienization

    International Nuclear Information System (INIS)

    Saxena, Sudhanshu; Gautam, Satyendra

    2015-01-01

    As mutation is the well known mechanism of neoplastic induction, therefore foods having bioactive compounds with potential to combat mutagenesis are of immense significance. Although honey is a well known natural functional food with associated health supporting quality attributes, there are limited reports with respect to its antimutagenic potential and the effect of floral type on the same. Antimutagenicity or the ability to prevent neoplastic inductions is being considered as an effective strategy to combat mutagen associated diseases. Therefore different regional Indian honeys varying in natural floral types procured were evaluated for their comparative antimutagenicity using a novel E. coli based forward mutation detection assay where mutation(s) in rpoB gene abolishes its interaction with rifampicin and thus confers rifampicin resistant mutator phenotype (RifR) to E. coli cells. Honey displayed wide variation in their ability to prevent induced mutagenesis and among 24 honey samples collected, 'Karanj' honey (Pongammia pinnata) displayed prominent (∼ 80%) antimutagenicity. Besides, honeys were also evaluated for their comparative antibacterial activity against various bacteria such as S. typhimurium, S. aureus, P. syringae etc. Surprisingly, honey of same floral type differed in their antibacterial potentials. Although honey is acidic in nature, the acidity of honey was not found to be the contributing factor of antibacterial activity. Instead, in almost all the cases the antibacterial activity was attributed to the peroxide component of honey. Besides, gamma radiation treatment was also standardized to ensure microbial safety of honey as it may contain burden of pathogenic microbial spores. Radiation (15 kGy) treatment of honey did not affect its antimutagenicity and antibacterial activity. Thus, the current findings provide credible evidence supporting health protective effects of honey and its retention in radiation hygienized honey. (author)

  15. PRELIMINARY CONTRIBUTION TO THE CHARACTERIZATION OF COMMERCIAL UNIFLORAL HONEY SAMPLES BY MELISSOPALYNOLOGY ANALYSIS

    Directory of Open Access Journals (Sweden)

    Nicoleta IANOVICI

    2008-01-01

    Full Text Available Melissopalynology (pollen analysis of honey is an indispensable method to authenticate honey origin and characteristics. It is very effective to determine and control the geographical origin of honeys and it also provides information about other important quality aspects. Melissopalynologists are challenged not only to identify the pollen found in honey but also decide what to do with the presence of pollen grains that are represented in the honey spectra. Pollen analyses of honey can also determine important information about honeybees such as foraging ecology, habitat and vegetation visited, changes in food sources and habitat composition. The advantages of a pollen analysis is that all, or most, nectar sources involved are recognised, and if quantitative data are available, their relationship to each component, or to the dominant source, can be determined. Pollen spectra gave consistent results for the same type of honey from different areas. The large variety of meliferous sources (223 enable in Romania to produce characteristic type of honeys. The interest in the production of unifloral honeys is a higher consumer preference for some honey varieties leading to a commercial interest of the beekeepers. In six sample of commercial unifloral honey, 16 pollen types were identified. These honeys are not especially rich in pollen types and compares with many honeys characteristic of Europe. Plantago pollen grains are irregularly found in these honeys, as elsewhere, although their numbers in any one sample are insignificant. The presence of this pollen type is considered accidental, especially as numbers are always low. Comparison of results from samples extracted by different methods is impossible, for absolute pollen content may vary greatly.

  16. Kinetic study of an alcoholic fermentation, using honey like substrate

    International Nuclear Information System (INIS)

    Gomez, Jose Angel; Castano, Hader Ivan; Arias Mario

    1997-01-01

    The paper describes a kinetic study of an alcoholic fermentation using honey like substrate; for this effect they were carried out nine fermentations in discontinuous process with a volume, of 10 L, following the behavior of the substrate concentrations, biomass and product in the time. It was evaluated the convenience of factors like the agitation and the addition of nutritious, also, it was observed the effect of the initial concentrations of substrate and inoculate and the type of honey looking for the best conditions of the process for the obtaining of an alcoholic drink

  17. Radioactive contamination of honey and other bee-keeping products

    International Nuclear Information System (INIS)

    Frantsevich, L.I.; Komissar, A.D.; Levchenko, I.A.

    1990-01-01

    Great amount of dust is collected in propolis under emergency atmospheric fallouts. Specific coefficient of the product migration amounts to several m 2 per 1 kg. Propolis is a good biological indicator of radioactive fallouts. The propolis collection is inadmissible after radioactive fallouts. Cocoon residuals obtained during bees-wax separation contain many radionuclides and should be disposed in special places. Nuclides are absent in bees-wax. Nuclides accumulated absent in a bee organism migrate into honey and queen milk, the honey is contaminated mainly via biogenic path

  18. Honey physicochemical properties of three species of the brazilian Melipona

    Directory of Open Access Journals (Sweden)

    Lorena G.A. Lage

    2012-09-01

    Full Text Available Physicochemical analyses were carried out to evaluate 27 samples of honeys from three species of the Brazilian genus Melipona (M. capixaba, M. rufiventris and M. mondury from Espírito Santo and Minas Gerais States. The parameters water activity (Aw, percentage of soluble solids (Brix %, pH, acidity (meq/Kg and moisture (% were evaluated. The honey characteristics obtained from these samples were very similar to the ones from other Melipona species. However, regarding the honey from Apis (honey bee, only the pH values were similar. The low pH value and the high acidity detected in Melipona honey are potential factors for increasing the honey shelf life because they do not provide favorable conditions for the microbial development. On the other hand, the high level of water activity favors the growth of microorganisms, especially yeast, which demands a more careful handled and storage. The observed differences between Melipona and Apis honey reinforce the need for specific quality settings for stingless bee honey.Análises fisico-quimicas foram realizadas para avaliar vinte e sete amostras de mel de três espécies do gênero Melipona (M. capixaba, M. rufiventris e M. mondury coletadas nos Estados do Espírito Santo e de Minas Gerais. Os parâmetros atividade de água (aW, porcentagem de sólidos solúveis (Brix %, pH, acidez (meq.Kg-1 e umidade (% foram avaliados. As características do mel dessas amostras foram muito similares às do mel de outras espécies de Melipona. Entretanto, para o mel de Apis apenas os valores de pH foram similares. O baixo valor de pH e a elevada acidez detectados no mel de Melipona são fatores potenciais para uma maior vida útil do mesmo por não oferecerem condições favoráveis ao desenvolvimento microbiano. Por outro lado, o alto teor de atividade de água favorece o crescimento de microrganismos, especialmente de leveduras o que requer maior cuidado no manuseio e armazenamento do mel. As diferenças observadas

  19. Self-Employment among Italian Female Graduates

    Science.gov (United States)

    Rosti, Luisa; Chelli, Francesco

    2009-01-01

    Purpose: The purpose of this paper is to investigate the gender impact of tertiary education on the probability of entering and remaining in self-employment. Design/methodology/approach: A data set on labour market flows produced by the Italian National Statistical Office is exploited by interviewing about 62,000 graduate and non-graduate…

  20. Stress Assignment in Reading Italian Polysyllabic Pseudowords

    Science.gov (United States)

    Sulpizio, Simone; Arduino, Lisa S.; Paizi, Despina; Burani, Cristina

    2013-01-01

    In 4 naming experiments we investigated how Italian readers assign stress to pseudowords. We assessed whether participants assign stress following distributional information such as stress neighborhood (the proportion and number of existent words sharing orthographic ending and stress pattern) and whether such distributional information affects…

  1. Italian retail gasoline activities: inadequate distribution network

    International Nuclear Information System (INIS)

    Verde, Stefano

    2005-01-01

    It is common belief that competition in the Italian retail gasoline activities is hindered by oil companies' collusive behaviour. However, when developing a broader analysis of the sector, low efficiency and scarce competition could results as the consequences coming from an inadequate distribution network and from the recognition of international markets and focal point [it

  2. Introduzione / Introduction | Guzzetta | Italian Studies in Southern ...

    African Journals Online (AJOL)

    Username, Password, Remember me, or Register. Introduzione / Introduction. G Guzzetta. Abstract. Identità Italiane In Movimento. Full Text: EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · http://dx.doi.org/10.4314/issa.v21i1-2.43947 · AJOL African Journals Online.

  3. The Italian Footwear Industry: an Empirical Analysis

    OpenAIRE

    Pirolo, Luca; Giustiniano, Luca; Nenni, Maria Elena

    2013-01-01

    This paper aims to provide readers with a deep empirical analysis on the Italian footwear industry in order to investigate the evolution of its structure (trends in sales and production, number of firms and employees, main markets, etc.), together with the identification of the main drivers of competitiveness in order to explain the strategies implemented by local actors.

  4. Energy and competition in italian industry

    International Nuclear Information System (INIS)

    Zanetti, G.

    2000-01-01

    The analysis of competition of the Italian production is based on the analysis of the prices. The most important period is between the first petroliferol crisis and these days. The production is concentrated on sector of old tradition and executed from an enterprise of small dimension [it

  5. Descriptive characteristics of the large Italian dams

    International Nuclear Information System (INIS)

    Dello Vicario, E.; Petaccia, A.; Savanella, V.

    1999-01-01

    In the present note the characteristics of the Italian dams are examined, underlining, in a statistical view, story, geographical location, types and use of the most important works. Such a review can be useful for a more detailed analysis, both for the dams characterization and for further studies relevant to water resources utilization [it

  6. Italian and Russian Verse: Two Cultures and Two Mentalities

    Directory of Open Access Journals (Sweden)

    Stefano Garzonio

    2006-12-01

    Full Text Available Italian and Russian Verse: Two Cultures and Two Mentalities The present text was given as a talk at Stanford University in 2003. Here the author presents a comparative analysis of Russian and Italian versification and pays attention to the cultural contacts between these two poetical traditions in an effort to define the role played by Italian patterns in Russian verse. In this perspective the author offers a history of Russian poetical translation of Italian texts pointing out the different opinions of Russian poets about the “musicality” of Italian verse. The combined influence of language and culture in modelling different Russian poetical forms in a chronological perspective is underlined.

  7. Prostatic hyperplasia in the mummy of an italian renaissance prince.

    Science.gov (United States)

    Ciranni, R; Giusti, L; Fornaciari, G

    2000-12-01

    Pandolfo III Malatesta (1370-1427) was a leading figure of the Italian Renaissance. He was a valiant soldier and horseman with a very active life style. Historical sources report that he died of a fever in 1427. The tomb, containing his mummified body, has recently been discovered in Fano (Marche, Central Italy). After careful X-ray and videographic examination, autopsy was performed to diagnose possible pathologies. Samples of different tissues were collected and rehydrated by Sandison's method and submitted to routine histology processes. Sections of treated tissue were fixed on clean slides, stained with hematoxylin-eosin or Gardner's Trichromic and observed at light microscope. RESULTS AND CONCLUSIONS The autopsy showed good preservation of the skeletal muscles, cartilage, internal and external organs included prostate gland and penis. Macroscopic examination revealed stag-horn calculi (calcium urate) of the left kidney and a severe enlargement of the prostate, with calcifications detectable by X-ray and a large nodule protruding in the lumen of an ectatic urethra. Histology shows fibrous bands of connective and muscular tissue surrounding some circular and oblong lacunae, with no preservation of epithelial structures. The macroscopic and histological picture, showing clear prostatic nodular hyperplasia, makes this the first case described in paleopathology. Copyright 2000 Wiley-Liss, Inc.

  8. Enantioselective analysis of chloramphenicol residues in honey samples by chiral LC-MS/MS and results of a honey survey.

    Science.gov (United States)

    Rimkus, Gerhard G; Hoffmann, Dirk

    2017-06-01

    Chloramphenicol (CAP) is a broad-spectrum antibiotic used widely in both human and veterinary medication. Since 1994, CAP has not been authorised for use in food-producing animals in the European Union due to several adverse effects. A minimum required performance level (MRPL) of 0.3 µg kg - 1 was established in 2003. The CAP molecule contains two asymmetric centres, thus in total four para-CAP stereoisomers exist. Only the RR-CAP enantiomer is bioactive, having significant antimicrobial activity. For the first time a chiral LC-MS/MS method is reported to identify and quantify the four CAP enantiomers at residue levels in honey samples. The method was validated at two concentration levels. The decision limits (CCα) and detection capabilities (CCß) were well below 0.3 µg kg - 1 , with limits of quantification (LOQs) between 0.08 and 0.12 µg kg - 1 for all four enantiomers. The method provides a sensitive and reliable analysis of CAP enantiomers in honey, and proved its robustness during the daily routine analyses of numerous honey samples. In an internal honey survey, in total 40 honey samples from different geographical regions with identified CAP residues at or above the MRPL were reanalysed by chiral LC-MS/MS. In nine honey samples only the bioactive RR-CAP was detected as anticipated. However, in all other 31 honey samples the non-bioactive SS-CAP was also identified and quantified unambiguously. In 10 of these samples, mixtures of RR- and SS-CAP were analysed, and in 21 samples only the SS-CAP enantiomer, with concentrations up to 2.2 µg kg - 1 . Most of these samples are honeys from Ukraine and Eastern Europe. This is the first report of SS-CAP residues in food samples. The potential sources for these findings are discussed and the need of further systematic studies emphasised. It is recommended to examine in more depth the toxicological profile of the individual CAP stereoisomers.

  9. Germany after March 11th

    International Nuclear Information System (INIS)

    Wolski, A.

    2011-01-01

    A retrospective since March 11th is presented with stress on the Fukushima accident, political situation in Germany, media and public opinion. Fukushima has devastated the trust in expert opinions about safety of NPPs. Germany’s Turn in Energy - consensus for nuclear phase-out exists between All political parties. The government has already announced adoption of the recommendations of the ethics commission. The 7 oldest units will remain shut-down. Further 7 units will be shut down until 2021. The youngest 3 units will be permanently shut down until 2022

  10. The Protective Effect of Whole Honey and Phenolic Extract on Oxidative DNA Damage in Mice Lymphocytes Using Comet Assay.

    Science.gov (United States)

    Cheng, Ni; Wang, Yuan; Cao, Wei

    2017-12-01

    In this study, the antioxidant activity and the protective effect against hydrogen peroxide-induced DNA damage were assessed for five honeys of different botanical origin. Seven phenolic acids were detected in the honey samples. Ferulic acid was the most abundant phenolic acid detected in longan honey, jujube honey and buckwheat honey. Ellagic acid, p-hydroxybenzoic acid and protocatechuic acid were the main phenolic acids detected in vitex honey. Of all honey samples tested, the highest total phenolic content and antioxidant activity were found in buckwheat honey, whereas the lowest total phenolic content and antioxidant activity were found in locust honey. Treatment with hydrogen peroxide induced a 62% increase in tail DNA in mice lymphocytes, and all studied honeys significantly inhibited this effect (P Phenolic extracts of honey displayed greater protective effects than whole honey in comet assay. The hydrogen peroxide-generated increase in 8-hydroxy-2-deoxyguanosine (8-OHdG) was effectively inhibited by the honeys studied (P phenolic acids of honey can penetrate into lymphocytes and protect DNA from oxidative damage by scavenging hydrogen peroxide and/or chelating ferrous ions.

  11. Viral infection affects sucrose responsiveness and homing ability of forager honey bees, Apis mellifera L.

    Science.gov (United States)

    Li, Zhiguo; Chen, Yanping; Zhang, Shaowu; Chen, Shenglu; Li, Wenfeng; Yan, Limin; Shi, Liangen; Wu, Lyman; Sohr, Alex; Su, Songkun

    2013-01-01

    Honey bee health is mainly affected by Varroa destructor, viruses, Nosema spp., pesticide residues and poor nutrition. Interactions between these proposed factors may be responsible for the colony losses reported worldwide in recent years. In the present study, the effects of a honey bee virus, Israeli acute paralysis virus (IAPV), on the foraging behaviors and homing ability of European honey bees (Apis mellifera L.) were investigated based on proboscis extension response (PER) assays and radio frequency identification (RFID) systems. The pollen forager honey bees originated from colonies that had no detectable level of honey bee viruses and were manually inoculated with IAPV to induce the viral infection. The results showed that IAPV-inoculated honey bees were more responsive to low sucrose solutions compared to that of non-infected foragers. After two days of infection, around 10⁷ copies of IAPV were detected in the heads of these honey bees. The homing ability of IAPV-infected foragers was depressed significantly in comparison to the homing ability of uninfected foragers. The data provided evidence that IAPV infection in the heads may enable the virus to disorder foraging roles of honey bees and to interfere with brain functions that are responsible for learning, navigation, and orientation in the honey bees, thus, making honey bees have a lower response threshold to sucrose and lose their way back to the hive.

  12. Effects of natural honey on polymicrobial culture of various human pathogens

    Science.gov (United States)

    Al-Waili, Faiza S.; Akmal, Mohammed; Ali, Amjed; Salom, Khelod Y.; Al Ghamdi, Ahmad A.

    2012-01-01

    Introduction Honey has a wide range of antimicrobial activity. All previous studies have considered honey's effect on a single microbe. The present study investigated activity of honey towards a high dose of single or polymicrobial culture. Material and methods 10 µl specimens of Staphylococcus aureus (S. aureus), Streptococcus pyogenes (S. pyogenes), Escherichia coli (E. coli) and Candida albicans (C. albicans) were cultured in 10 ml of 10-100% (wt/v) honey diluted in broth. Six types of polymicrobial microbial cultures were prepared by culturing the isolates with each other onto broth (control) and broth containing various concentrations of honey (10-100% wt/v). Microbial growth was assessed on solid plate media after 24 h incubation. Results Honey (30-70%) prevents growth of 10 µl specimens of all the isolates. Greater reduction in growth of E. coli was observed when cultured with S. aureus. Culturing of S. aureus with S. pyogenes, C. albicans, or E. coli increased its sensitivity to honey. S. aureus and S. pyogenes increased sensitivity of C. albicans to honey while E. coli and C. albicans decreased sensitivity of S. pyogenes. Conclusions It might be concluded that honey prevents and inhibits growth of single and polymicrobial pathogenic cultures. Polymicrobial culture affects growth of the isolates and increases their sensitivity to honey. PMID:24904656

  13. Viral infection affects sucrose responsiveness and homing ability of forager honey bees, Apis mellifera L.

    Directory of Open Access Journals (Sweden)

    Zhiguo Li

    Full Text Available Honey bee health is mainly affected by Varroa destructor, viruses, Nosema spp., pesticide residues and poor nutrition. Interactions between these proposed factors may be responsible for the colony losses reported worldwide in recent years. In the present study, the effects of a honey bee virus, Israeli acute paralysis virus (IAPV, on the foraging behaviors and homing ability of European honey bees (Apis mellifera L. were investigated based on proboscis extension response (PER assays and radio frequency identification (RFID systems. The pollen forager honey bees originated from colonies that had no detectable level of honey bee viruses and were manually inoculated with IAPV to induce the viral infection. The results showed that IAPV-inoculated honey bees were more responsive to low sucrose solutions compared to that of non-infected foragers. After two days of infection, around 10⁷ copies of IAPV were detected in the heads of these honey bees. The homing ability of IAPV-infected foragers was depressed significantly in comparison to the homing ability of uninfected foragers. The data provided evidence that IAPV infection in the heads may enable the virus to disorder foraging roles of honey bees and to interfere with brain functions that are responsible for learning, navigation, and orientation in the honey bees, thus, making honey bees have a lower response threshold to sucrose and lose their way back to the hive.

  14. Research of produstion volume and market turnover of honey from 2004. to 2014.

    Directory of Open Access Journals (Sweden)

    Ivanović Jelena

    2015-01-01

    Full Text Available The objective of this work was to investigate the scope of production, export and import of honey in the Republic of Serbia from 2004. to 2014. The results are based on the report of the Statistical Office of the Republic of Serbia. The observed period is characterized primarily by the increase in the number of beehives as well as an incresed honey production, followed by honey price growth and minor changes honey yield per hive. In this period, honey production ranged from 2,561 tons (in 2008 to 8,554 tons (in 2013. The largest volume of honey exports was in 2013. (3,367.7 tons, worth 14,881.4 thousand USD, and the largest import of honey into Serbia was in the same year (60.6 tons, worth 240.3 thousand USD. In the monitored period, Germany imported the largest quantities of honey from Serbia, about 4,611.0 tons (worth about 19,546.9 thousand USD, and somewhat smaller amounts of honey were imported by Italy and Montenegro. On the other hand, in the same period, Serbia imported the largest quantities of honey from the Republic of Macedonia, about 40.6 tons, worth 119.5 thousand USD. Beekeeping in Serbia definitely has a great development potential, so accordingly, its production should be encouraged in the future.

  15. Effect of honey on the reproductive system of male rat offspring exposed to prenatal restraint stress.

    Science.gov (United States)

    Haron, M N; Mohamed, M

    2016-06-01

    Exposure to prenatal stress is associated with impaired reproductive function in male rat offspring. Honey is traditionally used by the Malays for enhancement of fertility. The aim of this study was to determine the effect of honey on reproductive system of male rat offspring exposed to prenatal restraint stress. Dams were divided into four groups (n = 10/group): control, honey, stress and honey + stress groups. Dams from honey and honey + stress groups received oral honey (1.2 g kg(-1) body weight) daily from day 1 of pregnancy, meanwhile dams from stress and honey + stress groups were subjected to restraint stress (three times per day) from day 11 of pregnancy until delivery. At 10 weeks old, each male rat offspring was mated with a regular oestrus cycle female. Male sexual behaviour and reproductive performance were evaluated. Then, male rats were euthanised for assessment on reproductive parameters. Honey supplementation during prenatal restraint stress significantly increased testis and epididymis weights as well as improved the percentages of abnormal spermatozoa and sperm motility in male rat offspring. In conclusion, this study might suggest that supplementation of honey during pregnancy seems to reduce the adverse effects of restraint stress on reproductive organs weight and sperm parameters in male rat offspring. © 2015 Blackwell Verlag GmbH.

  16. Viral Infection Affects Sucrose Responsiveness and Homing Ability of Forager Honey Bees, Apis mellifera L.

    Science.gov (United States)

    Li, Zhiguo; Chen, Yanping; Zhang, Shaowu; Chen, Shenglu; Li, Wenfeng; Yan, Limin; Shi, Liangen; Wu, Lyman; Sohr, Alex; Su, Songkun

    2013-01-01

    Honey bee health is mainly affected by Varroa destructor, viruses, Nosema spp., pesticide residues and poor nutrition. Interactions between these proposed factors may be responsible for the colony losses reported worldwide in recent years. In the present study, the effects of a honey bee virus, Israeli acute paralysis virus (IAPV), on the foraging behaviors and homing ability of European honey bees (Apis mellifera L.) were investigated based on proboscis extension response (PER) assays and radio frequency identification (RFID) systems. The pollen forager honey bees originated from colonies that had no detectable level of honey bee viruses and were manually inoculated with IAPV to induce the viral infection. The results showed that IAPV-inoculated honey bees were more responsive to low sucrose solutions compared to that of non-infected foragers. After two days of infection, around 107 copies of IAPV were detected in the heads of these honey bees. The homing ability of IAPV-infected foragers was depressed significantly in comparison to the homing ability of uninfected foragers. The data provided evidence that IAPV infection in the heads may enable the virus to disorder foraging roles of honey bees and to interfere with brain functions that are responsible for learning, navigation, and orientation in the honey bees, thus, making honey bees have a lower response threshold to sucrose and lose their way back to the hive. PMID:24130876

  17. Antibacterial properties of tualang honey and its effect in burn wound management: a comparative study

    Directory of Open Access Journals (Sweden)

    Nasir Nur-Azida

    2010-06-01

    Full Text Available Abstract Background The use of honey as a natural product of Apis spp. for burn treatment has been widely applied for centuries. Tualang honey has been reported to have antibacterial properties against various microorganisms, including those from burn-related diagnoses, and is cheaper and easier to be absorbed by Aquacel dressing. The aim of this study is to evaluate the potential antibacterial properties of tualang honey dressing and to determine its effectiveness as a partial thickness burn wound dressing. Methods In order to quantitate the bioburden of the swabs, pour plates were performed to obtain the colony count (CFU/ml. Swabs obtained from burn wounds were streaked on blood agar and MacConkey agar for bacterial isolation and identification. Later, antibacterial activity of Aquacel-tualang honey, Aquacel-Manuka honey, Aquacel-Ag and Aquacel- plain dressings against bacteria isolated from patients were tested (in-vitro to see the effectiveness of those dressings by zone of inhibition assays. Results Seven organisms were isolated. Four types of Gram-negative bacteria, namely Enterobacter cloacae, Klebsiella pneumoniae, Pseudomonas spp. and Acinetobacter spp., and three Gram-positive bacteria, namely Staphylococcus aureus, coagulase-negative Staphylococcus aureus (CONS and Streptococcus spp., were isolated. Total bacterial count decreased on day 6 and onwards. In the in-vitro antibacterial study, Aquacel-Ag and Aquacel-Manuka honey dressings gave better zone of inhibition for Gram positive bacteria compared to Aquacel-Tualang honey dressing. However, comparable results were obtained against Gram negative bacteria tested with Aquacel-Manuka honey and Aquacel-Tualang honey dressing. Conclusions Tualang honey has a bactericidal as well as bacteriostatic effect. It is useful as a dressing, as it is easier to apply and is less sticky compared to Manuka honey. However, for Gram positive bacteria, tualang honey is not as effective as usual care

  18. Influence of feeding bee colonies on colony strenght and honey authenticity

    Directory of Open Access Journals (Sweden)

    Andreja KANDOLF BOROVŠAK

    2015-12-01

    Full Text Available For the natural development of bee colonies, there is the need for appropriate nutrition. Lack of natural honey flow must be supplemented by feeding bee colonies with sugar syrups or candy paste. This supplementary feeding encourages brood breeding and forage activity, whereby stronger colonies collect more honey. Sugar syrups can cause honey adulteration, which is more frequent with the reversing of the brood combs with the bee food, with the combs moved from the brood chamber to the upper chamber. Authentication of honey from the standpoint of the presence of sugar syrup is very complex, because there is no single method by which honey adulteration can be reliably confirmed. Feeding the colonies in spring should result in stronger colonies and hence the collection of more honey in the brood chambers. The objective of the present study was to determine whether this has effects also on honey authenticity, and to discover a simple method for detection of honey adulteration. The colonies were fed with candy paste that had added yeast and blue dye, to provide markers for detection of honey adulteration. The strength of the colonies and quantity of honey in the brood chambers were monitored. The results of the analysis of stable isotope and activity of foreign enzymes were compared with the results of yeast quantity and colour of the honey (absorbance, L*, a*, b* parameters. Detection of yeast in the honey samples and presence of colour as a consequence of added dye appear to be appropriate methods to follow honey adulteration, and further studies are ongoing.

  19. Honey Bee Colonies Remote Monitoring System

    Directory of Open Access Journals (Sweden)

    Sergio Gil-Lebrero

    2016-12-01

    Full Text Available Bees are very important for terrestrial ecosystems and, above all, for the subsistence of many crops, due to their ability to pollinate flowers. Currently, the honey bee populations are decreasing due to colony collapse disorder (CCD. The reasons for CCD are not fully known, and as a result, it is essential to obtain all possible information on the environmental conditions surrounding the beehives. On the other hand, it is important to carry out such information gathering as non-intrusively as possible to avoid modifying the bees’ work conditions and to obtain more reliable data. We designed a wireless-sensor networks meet these requirements. We designed a remote monitoring system (called WBee based on a hierarchical three-level model formed by the wireless node, a local data server, and a cloud data server. WBee is a low-cost, fully scalable, easily deployable system with regard to the number and types of sensors and the number of hives and their geographical distribution. WBee saves the data in each of the levels if there are failures in communication. In addition, the nodes include a backup battery, which allows for further data acquisition and storage in the event of a power outage. Unlike other systems that monitor a single point of a hive, the system we present monitors and stores the temperature and relative humidity of the beehive in three different spots. Additionally, the hive is continuously weighed on a weighing scale. Real-time weight measurement is an innovation in wireless beehive—monitoring systems. We designed an adaptation board to facilitate the connection of the sensors to the node. Through the Internet, researchers and beekeepers can access the cloud data server to find out the condition of their hives in real time.

  20. Effect of honey supplementation on heamatological parameters of ...

    African Journals Online (AJOL)

    The effects of dietary supplementation with natural honey on haematological profile, blood sugar and final body weight of rats fed diets contaminated with hydrocarbon petroleum products (gasoline and kerosene) were evaluated in this study. There was a significant (P<0.05) decrease in haemoglobin (Hb) content, red blood ...

  1. Neonicotinoid residues in UK honey despite European Union moratorium.

    Directory of Open Access Journals (Sweden)

    Ben A Woodcock

    Full Text Available Due to concerns over negative impacts on insect pollinators, the European Union has implemented a moratorium on the use of three neonicotinoid pesticide seed dressings for mass-flowering crops. We assessed the effectiveness of this policy in reducing the exposure risk to honeybees by collecting 130 samples of honey from bee keepers across the UK before (2014: N = 21 and after the moratorium was in effect (2015: N = 109. Neonicotinoids were present in about half of the honey samples taken before the moratorium, and they were present in over a fifth of honey samples following the moratorium. Clothianidin was the most frequently detected neonicotinoid. Neonicotinoid concentrations declined from May to September in the year following the ban. However, the majority of post-moratorium neonicotinoid residues were from honey harvested early in the year, coinciding with oilseed rape flowering. Neonicotinoid concentrations were correlated with the area of oilseed rape surrounding the hive location. These results suggest mass flowering crops may contain neonicotinoid residues where they have been grown on soils contaminated by previously seed treated crops. This may include winter seed treatments applied to cereals that are currently exempt from EU restrictions. Although concentrations of neonicotinoids were low (<2.0 ng g-1, and posed no risk to human health, they may represent a continued risk to honeybees through long-term chronic exposure.

  2. A survey of the ethnozoological knowledge of honey bees Apis ...

    African Journals Online (AJOL)

    A survey of the ethnozoological knowledge of honey bee Apis mellifera in Ijebu division of South western Nigeria was carried out to examine the pattern of invasion, control methods of their invasion and their effects in life and economy of the people which also include the medicinal and traditional utilization. The Survey was ...

  3. Toxicity assessment of glyphosate on honey bee (Apis mellifera) spermatozoa

    Science.gov (United States)

    During 2016-2017, 33.2% of managed honey bee colonies in the U.S. were lost due to Colony Collapse Disorder (CCD). Commonly used pesticides are among the suspected reasons for bee mortality. N-(phosphonomethyl)glycine (glyphosate) is a widely used herbicide in the U.S. and has previously been shown ...

  4. Honey Attenuates the Detrimental Effects of Nicotine on Testicular ...

    African Journals Online (AJOL)

    olayemitoyin

    reduction in percentage sperm motility, viability, morphology and counts were observed in nicotine group (p<0.05) compared to control. Serum FSH, LH and ... Honey is a natural product of bees formed from nectar collected from flowering ..... Regulatory Protein Expression in Adult Albino Rats: Possible Influence on Pituitary ...

  5. Comparative Evaluation of Cheese samples treated with Honey and ...

    African Journals Online (AJOL)

    The control treatment (A) was cheese kept in the whey, while Treatments B and C were cheese samples kept in Thyme and Honey solutions respectively. ... The crude protein was significantly higher (p<0.05) for Treatment B, then treatment A and least for treatment C. The ether extract followed the same trend as crude ...

  6. The role of honey bees as pollinators in natural areas

    Science.gov (United States)

    Clare E. Aslan; Christina T. Liang; Ben Galindo; Hill Kimberly; Walter Topete

    2016-01-01

    The western or European honey bee (Apis mellifera) is the primary managed pollinator in US agricultural systems, and its importance for food production is widely recognized. However, the role of A. mellifera as an introduced species in natural areas is potentially more complicated. The impact of A. mellifera...

  7. Sensitivity analyses for simulating pesticide impacts on honey bee colonies

    Science.gov (United States)

    We employ Monte Carlo simulation and sensitivity analysis techniques to describe the population dynamics of pesticide exposure to a honey bee colony using the VarroaPop + Pesticide model. Simulations are performed of hive population trajectories with and without pesti...

  8. Evaluating the effects of mosquito control adulticides on honey bees

    Science.gov (United States)

    While mosquito control adulticides can be effective in rapidly reducing mosquito populations during times of high arbovirus transmission, the impacts of these control measures on pollinators has been of recent interest. The purpose of our study was to evaluate mosquito and honey bee mortality using ...

  9. Sensitivity analysis for simulating pesticide impacts on honey bee colonies

    Science.gov (United States)

    Background/Question/Methods Regulatory agencies assess risks to honey bees from pesticides through a tiered process that includes predictive modeling with empirical toxicity and chemical data of pesticides as a line of evidence. We evaluate the Varroapop colony model, proposed by...

  10. A comparative study of marriage in honey bees optimisation (MBO ...

    African Journals Online (AJOL)

    2012-02-15

    Feb 15, 2012 ... In a typical mating, the queen mates with 7 to 20 drones. Each time the .... Honey bee mating optimisation model's pseudo-code ... for this analysis, which consists of 47 years of monthly time ... tive of Karkheh Reservoir is to control and regulate the flow of ..... Masters thesis, Maastricht University, Maastricht.

  11. Effect of Nigerian citrus ( Citrus sinensis Osbeck) honey on ethanol ...

    African Journals Online (AJOL)

    The effect of Nigerian citrus (Citrus sinensis Osbeck) honey on ethanol metabolism was tested using 45 consenting individuals in apparent good health and between the ages of 25 and 35 years. The subjects were moderate social drinkers matched in terms of body weight and build. The results obtained showed that on ...

  12. Honeybee forage, bee visitation counts and the properties of honey ...

    African Journals Online (AJOL)

    The aim of the survey was to document honeybee forage plants and asses honeybee visitation counts on different forage plants and properties of honey from selected agro-ecological zones of Uganda. In order to achieve the objectives of the study, a survey of the apiaries and beekeepers was done by selecting fifteen bee ...

  13. Foraging and pollination behaviour of the African Honey bee ( Apis ...

    African Journals Online (AJOL)

    Foraging and pollination behaviour of the African Honey bee (Apis mellifera adansonii) on Callistemon rigidus flowers in Ngaoundere (Cameroon). F-N Tchuenguem Fohouo, J Messi, D Brüchner, B Bouba, G Mbofung, J Hentchoya Hemo. Abstract. No Abstract Available Journal of the Cameroon Academy of Sciences ...

  14. Quality enhancement of chicken baked without skin using honey marinades.

    Science.gov (United States)

    Hashim, I B; McWatters, K H; Hung, Y C

    1999-12-01

    Chicken (bone-in, skinless, split breast) injected with lemon-pepper poultry pump marinade containing 20 or 30% honey was compared with chicken (with and without skin) marinated without honey. The objectives were to 1) determine moisture and fat contents and instrumental color and texture measurements, 2) characterize the sensory profiles of marinated chicken baked with and without skin, and 3) investigate the effect of honey marinades on the sensory characteristics of chicken baked without skin. Chicken was roasted at 177 C for one h to an internal temperature of 80 C. A trained panel (n = 13) evaluated the roasted chicken. Results showed that skin could be removed from premarinated chicken breast before baking without significantly affecting the amount of marinade uptake, moisture content, fat content, texture (force required to shear), or most instrumental measurements of color. With regard to sensory characteristics, skin removal before baking resulted in a less glossy and moist appearance, less brown color, and more intense pepper flavor in the roasted product than when the skin was not removed. Addition of honey to the marinade restored, to some extent, the intensities of moist and glossy appearance and brown color that were reduced by removal of the skin before baking.

  15. Antibacterial activity of three Cameroonian honey types against ...

    African Journals Online (AJOL)

    reported treated using honey (Anna et al.,. 2015). It has been used for dressing wounds. (burns, surgical wounds, and skin ulcers) probably ... moreover bacterial resistance to it is yet to be .... In most cases ..... Burns Fire Disasters, 14: 198-201.

  16. Methods to estimate breeding values in honey bees

    NARCIS (Netherlands)

    Brascamp, E.W.; Bijma, P.

    2014-01-01

    Background Efficient methodologies based on animal models are widely used to estimate breeding values in farm animals. These methods are not applicable in honey bees because of their mode of reproduction. Observations are recorded on colonies, which consist of a single queen and thousands of workers

  17. Biochemical properties and microbial analysis of honey from North ...

    African Journals Online (AJOL)

    In the present study, physicochemical properties (pH, ash, commercial glucose, starch, reducing sugars and moisture) and microbial (yeast and enterobacterial) contaminations of 263 honey samples from North-western regions of Iran were evaluated in a 2 year period in different seasons of 2010 and 2011. Levels of ...

  18. Honey bee gut dysbiosis: A novel context for disease ecology

    Science.gov (United States)

    A biofilm in the ileum of the honey bee has become a hot-spot of recent research. Highly host co-evolved, hindgut biofilm structure consists of six species that alter in relative abundance over the life of the adult worker, showing parallels with age-related senescence in Drosophila. Induced shifts ...

  19. Antibacterial activity of honey and medicinal plant extracts against ...

    African Journals Online (AJOL)

    Using a broth dilution method, the antibacterial activity extracts of six South African honeys and medicinal plants against six enteric microorganisms viz- Enterobacter cloacae, Escheriachia coli, Klebsiella pneumoniae, Citrobacter freundii isolated from geophagia samples and Aeromonas hydrophila and plesiomonas ...

  20. Physicochemical Characteristics and Microbiological Quality of Honey Produced in Benin

    Directory of Open Access Journals (Sweden)

    François Ezin Azonwade

    2018-01-01

    Full Text Available Honey is a very complex biological product. It has great diversity, giving it a multitude of properties, both nutritionally and therapeutically. This study aimed to study the physicochemical and microbiological characteristics of honeys collected during the dry and rainy seasons in the different phytogeographical areas of Benin. The study revealed that all honeys had pH, water content, electrical conductivity, ash content, free acidity, total sugars, and reducing sugars, respectively, ranging within 3.65–4.09; 12.07–13.16%; 530.25–698.50 μs/cm; 0.42–0.53%; 35.67–40.52 meq/kg; 60–70%; and 58–70%. Moisture content, total sugars, and reducing sugars varied very significantly (p0.05 between the zones or between the seasons was observed. The results of the microbiological characterization showed that there is heterogeneity in the microbial load. These results have shown that these honeys meet international standards and their characterization will make it possible to obtain Beninese quality labels.

  1. The basic concept of honey bee breeding programs

    NARCIS (Netherlands)

    Uzunov, A.; Brascamp, Pim; Büchler, R.

    2017-01-01

    Selective honey bee breeding is a phenomenon that fascinates beekeepers around the world. They often regard it as one of the most enigmatic and complex aspects of beekeeping. Indeed, according to our experiences participating in many international projects, both beekeepers and bee experts without a

  2. The Honey Bee Parasite Nosema ceranae: Transmissible via Food Exchange?

    NARCIS (Netherlands)

    Smith, M.L.

    2012-01-01

    Nosema ceranae, a newly introduced parasite of the honey bee, Apis mellifera, is contributing to worldwide colony losses. Other Nosema species, such as N. apis, tend to be associated with increased defecation and spread via a fecal-oral pathway, but because N. ceranae does not induce defecation, it

  3. Hybrid origins of Australian honey bees (Apis mellifera)

    Science.gov (United States)

    With increased globalisation and homogenisation the maintenance of genetic integrity of local populations of agriculturally important species is of increasing concern. The honey bee provides an interesting perspective as it is both domesticated and wild, with a large native range and much larger int...

  4. Some forest trees for honeydew honey production in Turkey

    Directory of Open Access Journals (Sweden)

    S. Ünal

    2017-08-01

    Full Text Available Honey is an important source of nutrients and energy and an effective remedy against various human diseases. Honeydew honey is produced from honeydew of phloem-feeders that honeybees gather. In this study, we focused on honeydew producers and diversity of host tree species which are involved in honeydew production in Turkey. A total of 24 honeydew producers by host tree species are identified in Turkey. Of these, 13 coniferous trees and 11 deciduous trees. The main honeydew producer in Turkey is a scale insect, Marchalina hellenica Gennadius (Hemiptera: Margarodidae living mainly on pines (Turkish red pine, Aleppo pine, and rarely on stone pine, Anatolian black pine and Scots pine. Honeydew producer insects can be treated as serious pests of conifer and broadleaf trees. The aphids and the scale insects such as Ceroplastes floridensis, Cinara cedri, C. laportei, Eulachnus rileyi, Icerya purchase, Kermes vermilio, Lichtensia viburni and Saissetia oleae are known as pests in several European, Asian and African countries. Despite their potential harm to their host plants, insect species producing honeydew play an important role in honey production in Turkey. Turkish honey production is exported to EU countries and, furthermore beekeeping is an important part of agricultural sector in Turkey.

  5. Western honey bee management for crop pollination | Toni | African ...

    African Journals Online (AJOL)

    Because of the low application of this technology in Africa, research must be conducted in order to access the need of pollination service and then the profitability of this technology in the current African entomological fauna context. Despite its benefits, the use of managed Western honey bees can affect native pollinators ...

  6. Transcriptional responses in honey bee larvae infected with chalkbrood fungus.

    Science.gov (United States)

    Aronstein, Katherine A; Murray, Keith D; Saldivar, Eduardo

    2010-06-21

    Diseases and other stress factors working synergistically weaken honey bee health and may play a major role in the losses of bee populations in recent years. Among a large number of bee diseases, chalkbrood has been on the rise. We present here the experimental identification of honey bee genes that are differentially expressed in response to infection of honey bee larvae with the chalkbrood fungus, Ascosphaera apis. We used cDNA-AFLP Technology to profile transcripts in infected and uninfected bee larvae. From 64 primer combinations, over 7,400 transcriptionally-derived fragments were obtained A total of 98 reproducible polymorphic cDNA-AFLP fragments were excised and sequenced, followed by quantitative real-time RT-PCR (qRT-PCR) analysis of these and additional samples.We have identified a number of differentially-regulated transcripts that are implicated in general mechanisms of stress adaptation, including energy metabolism and protein transport. One of the most interesting differentially-regulated transcripts is for a chitinase-like enzyme that may be linked to anti-fungal activities in the honey bee larvae, similarly to gut and fat-body specific chitinases found in mosquitoes and the red flour beetle. Surprisingly, we did not find many components of the well-characterized NF-kappaB intracellular signaling pathways to be differentially-regulated using the cDNA-AFLP approach. Therefore, utilizing qRT-PCR, we probed some of the immune related genes to determine whether the lack of up-regulation of their transcripts in our analysis can be attributed to lack of immune activation or to limitations of the cDNA-AFLP approach. Using a combination of cDNA-AFLP and qRT-PCR analyses, we were able to determine several key transcriptional events that constitute the overall effort in the honey bee larvae to fight natural fungal infection. Honey bee transcripts identified in this study are involved in critical functions related to transcriptional regulation, apoptotic

  7. The ability to cause infection in a pathogenic fungus uncovers a new biological feature of honey bee viruses.

    Science.gov (United States)

    Li, Zhiguo; Su, Songkun; Hamilton, Michele; Yan, Limin; Chen, Yanping

    2014-07-01

    We demonstrated that honey bee viruses including Deformed wing virus (DWV), Black queen cell virus (BQCV) and Israeli acute paralysis virus (IAPV) could infect and replicate in the fungal pathogen Ascosphaera apis that causes honey bee chalkbrood disease, revealing a novel biological feature of honey bee viruses. The phylogenetic analysis show that viruses of fungal and honey bee origins form two clusters in the phylogenetic trees distinctly and that host range of honey bee viruses is dynamic. Further studies are warranted to investigate the impact of the viruses on the fitness of their fungal host and phenotypic effects the virus-fungus combination has on honey bee hosts. Published by Elsevier Inc.

  8. Determination of Mineral, Trace Element, and Pesticide Levels in Honey Samples Originating from Different Regions of Malaysia Compared to Manuka Honey

    Science.gov (United States)

    Moniruzzaman, Mohammed; Chowdhury, Muhammed Alamgir Zaman; Rahman, Mohammad Abdur; Sulaiman, Siti Amrah; Gan, Siew Hua

    2014-01-01

    The present study was undertaken to determine the content of six minerals, five trace elements, and ten pesticide residues in honeys originating from different regions of Malaysia. Calcium (Ca), magnesium (Mg), iron (Fe), and zinc (Zn) were analyzed by flame atomic absorption spectrometry (FAAS), while sodium (Na) and potassium (K) were analyzed by flame emission spectrometry (FAES). Trace elements such as arsenic (As), lead (Pb), cadmium (Cd), copper (Cu), and cobalt (Co) were analyzed by graphite furnace atomic absorption spectrometry (GFAAS) following the microwave digestion of honey. High mineral contents were observed in the investigated honeys with K, Na, Ca, and Fe being the most abundant elements (mean concentrations of 1349.34, 236.80, 183.67, and 162.31 mg/kg, resp.). The concentrations of the trace elements were within the recommended limits, indicating that the honeys were of good quality. Principal component analysis reveals good discrimination between the different honey samples. The pesticide analysis for the presence of organophosphorus and carbamates was performed by high performance liquid chromatography (HPLC). No pesticide residues were detected in any of the investigated honey samples, indicating that the honeys were pure. Our study reveals that Malaysian honeys are rich sources of minerals with trace elements present within permissible limits and that they are free from pesticide contamination. PMID:24982869

  9. Determination of Mineral, Trace Element, and Pesticide Levels in Honey Samples Originating from Different Regions of Malaysia Compared to Manuka Honey

    Directory of Open Access Journals (Sweden)

    Mohammed Moniruzzaman

    2014-01-01

    Full Text Available The present study was undertaken to determine the content of six minerals, five trace elements, and ten pesticide residues in honeys originating from different regions of Malaysia. Calcium (Ca, magnesium (Mg, iron (Fe, and zinc (Zn were analyzed by flame atomic absorption spectrometry (FAAS, while sodium (Na and potassium (K were analyzed by flame emission spectrometry (FAES. Trace elements such as arsenic (As, lead (Pb, cadmium (Cd, copper (Cu, and cobalt (Co were analyzed by graphite furnace atomic absorption spectrometry (GFAAS following the microwave digestion of honey. High mineral contents were observed in the investigated honeys with K, Na, Ca, and Fe being the most abundant elements (mean concentrations of 1349.34, 236.80, 183.67, and 162.31 mg/kg, resp.. The concentrations of the trace elements were within the recommended limits, indicating that the honeys were of good quality. Principal component analysis reveals good discrimination between the different honey samples. The pesticide analysis for the presence of organophosphorus and carbamates was performed by high performance liquid chromatography (HPLC. No pesticide residues were detected in any of the investigated honey samples, indicating that the honeys were pure. Our study reveals that Malaysian honeys are rich sources of minerals with trace elements present within permissible limits and that they are free from pesticide contamination.

  10. Determination of mineral, trace element, and pesticide levels in honey samples originating from different regions of Malaysia compared to manuka honey.

    Science.gov (United States)

    Moniruzzaman, Mohammed; Chowdhury, Muhammed Alamgir Zaman; Rahman, Mohammad Abdur; Sulaiman, Siti Amrah; Gan, Siew Hua

    2014-01-01

    The present study was undertaken to determine the content of six minerals, five trace elements, and ten pesticide residues in honeys originating from different regions of Malaysia. Calcium (Ca), magnesium (Mg), iron (Fe), and zinc (Zn) were analyzed by flame atomic absorption spectrometry (FAAS), while sodium (Na) and potassium (K) were analyzed by flame emission spectrometry (FAES). Trace elements such as arsenic (As), lead (Pb), cadmium (Cd), copper (Cu), and cobalt (Co) were analyzed by graphite furnace atomic absorption spectrometry (GFAAS) following the microwave digestion of honey. High mineral contents were observed in the investigated honeys with K, Na, Ca, and Fe being the most abundant elements (mean concentrations of 1349.34, 236.80, 183.67, and 162.31 mg/kg, resp.). The concentrations of the trace elements were within the recommended limits, indicating that the honeys were of good quality. Principal component analysis reveals good discrimination between the different honey samples. The pesticide analysis for the presence of organophosphorus and carbamates was performed by high performance liquid chromatography (HPLC). No pesticide residues were detected in any of the investigated honey samples, indicating that the honeys were pure. Our study reveals that Malaysian honeys are rich sources of minerals with trace elements present within permissible limits and that they are free from pesticide contamination.

  11. Iridovirus and microsporidian linked to honey bee colony decline.

    Science.gov (United States)

    Bromenshenk, Jerry J; Henderson, Colin B; Wick, Charles H; Stanford, Michael F; Zulich, Alan W; Jabbour, Rabih E; Deshpande, Samir V; McCubbin, Patrick E; Seccomb, Robert A; Welch, Phillip M; Williams, Trevor; Firth, David R; Skowronski, Evan; Lehmann, Margaret M; Bilimoria, Shan L; Gress, Joanna; Wanner, Kevin W; Cramer, Robert A

    2010-10-06

    In 2010 Colony Collapse Disorder (CCD), again devastated honey bee colonies in the USA, indicating that the problem is neither diminishing nor has it been resolved. Many CCD investigations, using sensitive genome-based methods, have found small RNA bee viruses and the microsporidia, Nosema apis and N. ceranae in healthy and collapsing colonies alike with no single pathogen firmly linked to honey bee losses. We used Mass spectrometry-based proteomics (MSP) to identify and quantify thousands of proteins from healthy and collapsing bee colonies. MSP revealed two unreported RNA viruses in North American honey bees, Varroa destructor-1 virus and Kakugo virus, and identified an invertebrate iridescent virus (IIV) (Iridoviridae) associated with CCD colonies. Prevalence of IIV significantly discriminated among strong, failing, and collapsed colonies. In addition, bees in failing colonies contained not only IIV, but also Nosema. Co-occurrence of these microbes consistently marked CCD in (1) bees from commercial apiaries sampled across the U.S. in 2006-2007, (2) bees sequentially sampled as the disorder progressed in an observation hive colony in 2008, and (3) bees from a recurrence of CCD in Florida in 2009. The pathogen pairing was not observed in samples from colonies with no history of CCD, namely bees from Australia and a large, non-migratory beekeeping business in Montana. Laboratory cage trials with a strain of IIV type 6 and Nosema ceranae confirmed that co-infection with these two pathogens was more lethal to bees than either pathogen alone. These findings implicate co-infection by IIV and Nosema with honey bee colony decline, giving credence to older research pointing to IIV, interacting with Nosema and mites, as probable cause of bee losses in the USA, Europe, and Asia. We next need to characterize the IIV and Nosema that we detected and develop management practices to reduce honey bee losses.

  12. Winter Survival of Individual Honey Bees and Honey Bee Colonies Depends on Level of Varroa destructor Infestation

    NARCIS (Netherlands)

    Dooremalen, van C.; Gerritsen, L.J.M.; Cornelissen, B.; Steen, van der J.J.M.; Langevelde, van F.; Blacquiere, T.

    2012-01-01

    Background: Recent elevated winter loss of honey bee colonies is a major concern. The presence of the mite Varroa destructor in colonies places an important pressure on bee health. V. destructor shortens the lifespan of individual bees, while long lifespan during winter is a primary requirement to

  13. 22nd Italian Workshop on Neural Nets

    CERN Document Server

    Bassis, Simone; Esposito, Anna; Morabito, Francesco

    2013-01-01

    This volume collects a selection of contributions which has been presented at the 22nd Italian Workshop on Neural Networks, the yearly meeting of the Italian Society for Neural Networks (SIREN). The conference was held in Italy, Vietri sul Mare (Salerno), during May 17-19, 2012. The annual meeting of SIREN is sponsored by International Neural Network Society (INNS), European Neural Network Society (ENNS) and IEEE Computational Intelligence Society (CIS). The book – as well as the workshop-  is organized in three main components, two special sessions and a group of regular sessions featuring different aspects and point of views of artificial neural networks and natural intelligence, also including applications of present compelling interest.

  14. Great landslide events in Italian artificial reservoirs

    Directory of Open Access Journals (Sweden)

    A. Panizzo

    2005-01-01

    Full Text Available The empirical formulations to forecast landslide generated water waves, recently defined in the framework of a research program funded by the Italian National Dam Office RID (Registro Italiano Dighe, are here used to study three real cases of subaerial landslides which fell down italian artificial reservoirs. It is well known that impulse water waves generated by landslides constitute a very dangerous menace for human communities living in the shoreline of the artificial basin or downstream the dam. In 1963, the menace became tragedy, when a 270 millions m3 landslide fell down the Vajont reservoir (Italy, generated an impulse wave which destroyed the city of Longarone, and killed 2000 people. The paper is aimed at presenting the very satisfactorily reproduction of the events at hand by using forecasting formulations.  

  15. Great landslide events in Italian artificial reservoirs

    Science.gov (United States)

    Panizzo, A.; de Girolamo, P.; di Risio, M.; Maistri, A.; Petaccia, A.

    2005-09-01

    The empirical formulations to forecast landslide generated water waves, recently defined in the framework of a research program funded by the Italian National Dam Office RID (Registro Italiano Dighe), are here used to study three real cases of subaerial landslides which fell down italian artificial reservoirs. It is well known that impulse water waves generated by landslides constitute a very dangerous menace for human communities living in the shoreline of the artificial basin or downstream the dam. In 1963, the menace became tragedy, when a 270 millions m3 landslide fell down the Vajont reservoir (Italy), generated an impulse wave which destroyed the city of Longarone, and killed 2000 people. The paper is aimed at presenting the very satisfactorily reproduction of the events at hand by using forecasting formulations.

  16. The Italian contribution to the CSES satellite

    Science.gov (United States)

    Conti, Livio

    2016-04-01

    We present the Italian contribution to the CSES (China Seismo-Electromagnetic Satellite) mission. The CSES satellite aims at investigating electromagnetic field, plasma and particles in the near-Earth environment in order to study in particular seismic precursors, particles fluxes (from Van Allen belts, cosmic rays, solar wind, etc.), anthropogenic electromagnetic pollution and more in general the atmosphere-ionosphere-magnetosphere coupling mechanisms that can affect the climate changes. The launch of CSES - the first of a series of several satellite missions - is scheduled by the end of 2016. The CSES satellite has been financed by the CNSA (China National Space Agency) and developed by CEA (China Earthquake Administration) together with several Chinese research institutes and private companies such as the DFH (that has developed the CAST2000 satellite platform). Italy participates to the CSES satellite mission with the LIMADOU project funded by ASI (Italian Space Agency) in collaboration with the Universities of Roma Tor Vergata, Uninettuno, Trento, Bologna and Perugia, as well as the INFN (Italian National Institute of Nuclear Physics), INGV (Italian National Institute of Geophysics and Volcanology) and INAF-IAPS (Italian National Institute of Astrophysics and Planetology). Many analyses have shown that satellite observations of electromagnetic fields, plasma parameters and particle fluxes in low Earth orbit may be useful in order to study the existence of electromagnetic emissions associated with the occurrence of earthquakes of medium and high magnitude. Although the earthquakes forecasting is not possible today, it is certainly a major challenge - and perhaps even a duty - for science in the near future. The claims that the reported anomalies (of electromagnetic, plasma and particle parameters) are seismic precursors are still intensely debated and analyses for confirming claimed correlations are still lacking. In fact, ionospheric currents, plasma

  17. Italian students win a trip to CERN

    CERN Multimedia

    2006-01-01

    The six winners of the Progetto Lauree Scientifiche came to CERN to discover the LHC experiments. Six Italian high-school students visited CERN last week as part of a biennial project sponsored by the Italian Research ministry, the University of Ferrara and INFN. A total of 160 enthusiastic students took part in the project, which aims to introduce and foster interest in higher levels of science and technology. The Progetto Lauree Scientifiche prize was awarded to these students for their excellent grades in an examination covering various areas of physics, including laser, solid and particle physics. The winners spent six days at CERN touring the Laboratory and seeing first-hand the various aspects of research in one of the leading European centres, as well as the excitement of the particle physics adventure.

  18. A healthy lesson, Italian-style?

    Directory of Open Access Journals (Sweden)

    Walter Ricciardi

    2009-12-01

    Full Text Available According to the conclusions of the World Health Organisation’s 2000 report Italy had the second best health system in the world [1] with Italians having one of the highest rates of life expectancy... However, since 2001 the 19 Italian Regions and 2 Autonomous Provinces have exercised their autonomy very differently, with Northern regions being more successful in establishing effective structures of health care delivery, management and monitoring, as compared to regions in the South. This regional variation in health care reflects (and exacerbates differences of contextual, political, economic and cultural, factors as well as differences between regional health systems. A recent survey [2] showed that in 14 of the 21 Regions and Autonomous Provinces, the system is performing fairly well and is well perceived by citizens.

  19. Genetic variability of Italian Heavy Draught Horse

    Directory of Open Access Journals (Sweden)

    Fabio Maretto

    2010-01-01

    Full Text Available This study aimed to analyze the genetic variability of the Italian Heavy Draught Horse (IHDH breed using a panel of 23 microsatellite markers. We also compared the population structure of the IHDH to other two unrelated breeds (Italian Haflinger, IH and Quarter Horse, QH. The IHDH showed a genetic variability comparable with other European heavy draught horse breeds and with the IH and QH breeds analyzed. Clustering analyses using a posterior Bayesian approach clearly differentiated the three breeds; it also showed a fragmentation of the IHDH in three subpopulations that need to be further investigated. These findings are an indicator of the present situation of the IHDH and will contribute to the conservation and implementation of the selection programme for this breed.

  20. Petroleum marketing monthly, March 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-03-10

    This report for March 1995, provides information and statistical data on a variety of crude oils and refined petroleum products. The publication presents statistics on crude oil costs and refined petroleum products sales for use by industry, government, private sector analysts, educational institutions, and consumers. Data on crude oil include the domestic first purchase price, the f.o.b. and landed cost of imported crude oil, and the refiners` acquisition cost of crude oil. Refined petroleum product sales data include motor gasoline, distillates, residuals, aviation fuels, kerosene, and propane. The Petroleum Marketing Division, Office of Oil and Gas, Energy Information Administration ensures the accuracy, quality, and confidentiality of the published data in the Petroleum Marketing Monthly. A glossary is included.

  1. Geneva University - Events in March

    CERN Multimedia

    Geneva University

    2010-01-01

    École de physique - Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 GENEVA 4 Tel: (022) 379 62 73 - Fax: (022) 379 69 92 Monday 8 March 2010 PHYSICS COLLOQUIUM at 17:00 – Stückelberg Auditorium Gravitational lensing: an astrophysical tool Prof. Georges Meylan École Polytechnique fédérale de Lausanne (EPFL) - Observatoire de Sauverny The total solar eclipse of 1919 unveiled the gravitational lens nature of our Sun. The next example of another gravitational lens was discovered in 1979. Originally considered as a mere curiosity, gravitational lensing has matured, during the last two decades, into a genuine astrophysical tool, used in a large variety of problems, from planet search to the quest for the most distant galaxies. We shall present cosmological results obtained at EPFL about (i) strong lensing and time delays, related to the measurements of the Hubble constant ; (ii) micro lensing...

  2. Areva at March 31, 2016

    International Nuclear Information System (INIS)

    Lachaux, Manuel; Jugean, Anne-Sophie

    2016-01-01

    In the first quarter of 2016, AREVA generated consolidated revenue of 826 million euros, a decrease of 0.8% (-2.2% like for like) compared with the same period in 2015, due in particular to the schedule of uranium deliveries. Foreign exchange had a positive impact of 12 million euros over the period. At March 31, 2016, the group's backlog reached 33.6 billion euros, up sharply compared to December 31, 2015 (29 billion euros), and represented eight years of revenue. It reflects in particular multi-year commercial agreements signed with EDF in early 2016. The order intake for the first quarter of 2016 totaled 6.1 billion euros, a strong increase in relation to the first quarter of 2015 (0.3 billion euros)

  3. Melissopalynological and volatile analysis of honeys from Corsican Arbutus unedo habitat.

    Science.gov (United States)

    Yang, Yin; Battesti, Marie-José; Costa, Jean; Paolini, Julien

    2014-10-01

    Thirty Corsican "autumn maquis" honeys were characterized by the typical combination of autumnal taxa: Arbutus unedo, Hedera helix, Smilax aspera, Rosmarinus officinalis, and two Asteraceae pollen forms. Corsican origin was characterized by the diversity of the taxa's biogeographical origins and significant presence of Castanea sativa and Quercus sp. Volatile fractions of "autumn maquis" honeys were dominated by isophorone and 3,4,5-trimethylphenol. The latter is reported in A. unedo honey for the first time. Otherwise, both A. unedo flower and "autumn maquis" honeys exhibited high contents of isophorone derivatives. H. helix honey exhibited phenylacetaldehyde, benzyl nitrile, 3-hydroxy-4-phenylbutan-2-one and nonanal as major compounds, which were scarcely represented in the studied "autumn maquis" honey samples.

  4. Authentication of monofloral Yemeni Sidr honey using ultraviolet spectroscopy and chemometric analysis.

    Science.gov (United States)

    Roshan, Abdul-Rahman A; Gad, Haidy A; El-Ahmady, Sherweit H; Khanbash, Mohamed S; Abou-Shoer, Mohamed I; Al-Azizi, Mohamed M

    2013-08-14

    This work describes a simple model developed for the authentication of monofloral Yemeni Sidr honey using UV spectroscopy together with chemometric techniques of hierarchical cluster analysis (HCA), principal component analysis (PCA), and soft independent modeling of class analogy (SIMCA). The model was constructed using 13 genuine Sidr honey samples and challenged with 25 honey samples of different botanical origins. HCA and PCA were successfully able to present a preliminary clustering pattern to segregate the genuine Sidr samples from the lower priced local polyfloral and non-Sidr samples. The SIMCA model presented a clear demarcation of the samples and was used to identify genuine Sidr honey samples as well as detect admixture with lower priced polyfloral honey by detection limits >10%. The constructed model presents a simple and efficient method of analysis and may serve as a basis for the authentication of other honey types worldwide.

  5. Mercury levels in defined Italian population groups

    International Nuclear Information System (INIS)

    Ingrao, G.; Belloni, P.

    1991-01-01

    Our group conducts its research activity in the Department AMB-BIO (Biological and Sanitary Effect of Toxic Agents) of ENEA (National Committee for Research and Development of Nuclear and Alternative Energy) at the research centre of Casaccia. The food chain is the main pathway leading to humans for most of the trace elements. The research, therefore, has been directed mainly towards the study of the variability of the trace element content in the Italian diet. This programme aims at assessing the adequacy of the essential trace elements ingestion, and to verify that the ingestion of toxic trace elements is below the recommended values. Part of this research was conducted in the frame of the IAEA CRP on ''Human daily Intakes of Nutritionally Important Trace Elements as Measured by Nuclear and Other Techniques''. Studies carried out by the National Institute of Nutrition and FAO have shown that there are some population groups having a fish consumption significantly higher than the average value for the Italian population. These groups are usually found in coastal towns were fishing is one of the main occupation and generally includes fishermen, fish dealers, restaurant workers and their families. A pilot study was conducted in one of these towns, Bagnara Calabra in the South of Italy, where the average fish consumption is 27.1 kg per year, which is more than twice the national average. The results have shown that the mercury concentration in the diet is significantly higher than in other Italian locations, the mercury levels in blood and hair sample in these subjects are also significantly higher than the values reported for subjects of the general Italian population. 6 refs

  6. Italian Microhistory, anthropology and judicial archives

    Directory of Open Access Journals (Sweden)

    Eulalia Hernández Ciro

    2016-01-01

    Full Text Available From the interceptions between the Italian microhistory and anthropology, this article aims to provide a central debate of contemporary historiography account of popular culture and subaltern classes from the intensive and exhaustive judicial proceedings. To do this, some of the impacts of anthropology will be addressed in the historical work, as the appearance and questioning notion of popular culture, the ethnographic value of court files and finally, some possibilities in the case of Judicial Historical Archive of Medellin.

  7. Nuclear engineering education in italian universities

    International Nuclear Information System (INIS)

    Dulla, S.; Panella, B.; Ravetto, P.

    2011-01-01

    The paper illustrates the evolution and the present situation of the university-level nuclear engineering education in Italy. The problems connected with the need of qualified faculty in view of a dramatic increase of students is pointed out. A short description of the programs at present available at Italian universities is also presented, together with some statistics referred to Politecnico di Torino. The mathematical and computation content of each programs is also analyzed. (author)

  8. Italian asset management companies: products and governance

    OpenAIRE

    Arcuri, Maria Cristina

    2013-01-01

    The importance of the asset management sector has prompted many studies to highlight the need to promote its growth and development. This is even more so following the recent financial crisis, considered by many authors the most severe recession after World War II. Contributions existing in literature have emphasized the importance of investigating the corporate governance system of the Asset Management Companies (AMCs), considering that the Italian financial system is characterized by a "...

  9. Ramsey prices in the Italian electricity market

    International Nuclear Information System (INIS)

    Bigerna, Simona; Bollino, Carlo Andrea

    2016-01-01

    In this paper, we derive optimal zonal prices in the Italian day-ahead electricity market using estimation of a complete system of hourly demand in 2010–2011. In Italy, the hourly equilibrium price for all buyers is computed as a uniform average of supply zonal prices, resulting from market splitting due to line congestion. We model ex-ante individual bids expressed by heterogeneous consumers, which are distinguished by geographical zones. Using empirical estimations, we compute demand elasticity values and new zonal prices, according to a Ramsey optimal scheme. This is a new approach in the wholesale electricity market literature, as previous studies have discussed the relative merit of zonal prices, considering only the issue of line congestion. Our results show that the optimal pricing scheme can improve welfare in the day-ahead Italian electricity market, with respect to both the existing uniform price scheme and the proposal to charge the existing supply zonal prices to the demand side. - Highlights: • We model and estimate the demand of heterogeneous buyers in the electricity market. • Transmission line congestion creates welfare distortions in the market. • We derive optimal Ramsey prices in the Italian day-ahead electricity market. • We compare optimal prices with historical ones showing how to improve welfare.

  10. Ionizing radiations in Italian health care structures

    International Nuclear Information System (INIS)

    Fizzano, M.R.; Frusteri, L.

    2006-01-01

    The Council of the European Union has completely renewed the framework regarding radiation protection by adopting some directives: Directive 97/43 EURATOM lays down the general principles of the radiation protection of individuals undergoing exposure to ionising radiations related to medical exposures, as a supplement of Directive 96/29 EURATOM laying down the basic safety standards for the protection of the health of workers and the general public against the dangers arising from ionising radiations.The incorporation into Italian legislation of the European Community directives on the improvement of health and safety at work has promoted a vast effort in order to revise the surveillance approach in many facilities, including hospitals. In Italy, safety law is referred to every workplace; anyway the use of ionising radiations is ruled by specific laws. So in the health care structures it is necessary integrating both the laws and this process is often difficult to carry on. The Italian Legislative Decree 230/95, one the main laws that aim to protect workers against ionising radiations, introduced Directive 96/29/EURATOM. This Decree asks that a doctor and a technical expert analyse the workplace and classify area and workers in according to dose of ionising radiation established by law. The Italian Legislative Decree 626/94 asks that risk analysis in general is made by doctor and specialist in risk. So, in case of risk from ionising radiation, all these figures have to cooperate in order to make an evaluation risk document. (N.C.)

  11. Residential construction cost: An Italian survey.

    Science.gov (United States)

    Canesi, Rubina; Marella, Giuliano

    2017-04-01

    This paper reports data describing development projects for new buildings according to construction costs in North-East Italy. A survey was carried out on local companies undertaking new residential development projects in two Italian regions (Veneto and Lombardy). The aim of this survey was to record new real estate construction projects, collecting both technical and socio-economic cost features. It is extremely difficult to collect such data for the Italian real estate construction sector, due to its lack of transparency, so that the novelty for the Italian scenario is the dataset itself. Another interest perspective of this survey is that socio-economic characteristics were also recorded; they are often studied in urban economics, but are usually related to property purchase prices and values, not to construction costs. The data come from an analysis of Canesi and Marella regarding the relationship between the trend of construction costs and the socio-economic conditions of the reference setting, such as the mean years of schooling of the workforce, housing market trends, and average per capita income.

  12. Residential construction cost: An Italian survey

    Directory of Open Access Journals (Sweden)

    Rubina Canesi

    2017-04-01

    Full Text Available This paper reports data describing development projects for new buildings according to construction costs in North-East Italy. A survey was carried out on local companies undertaking new residential development projects in two Italian regions (Veneto and Lombardy. The aim of this survey was to record new real estate construction projects, collecting both technical and socio-economic cost features. It is extremely difficult to collect such data for the Italian real estate construction sector, due to its lack of transparency, so that the novelty for the Italian scenario is the dataset itself. Another interest perspective of this survey is that socio-economic characteristics were also recorded; they are often studied in urban economics, but are usually related to property purchase prices and values, not to construction costs. The data come from an analysis of Canesi and Marella regarding the relationship between the trend of construction costs and the socio-economic conditions of the reference setting, such as the mean years of schooling of the workforce, housing market trends, and average per capita income.

  13. Ionizing radiations in Italian health care structures

    Energy Technology Data Exchange (ETDEWEB)

    Fizzano, M.R.; Frusteri, L. [Technical Advisory Dept. for Risk Assessment and Prevention, Italian Workers Compensation Authority, Rome (Italy)

    2006-07-01

    The Council of the European Union has completely renewed the framework regarding radiation protection by adopting some directives: Directive 97/43 EURATOM lays down the general principles of the radiation protection of individuals undergoing exposure to ionising radiations related to medical exposures, as a supplement of Directive 96/29 EURATOM laying down the basic safety standards for the protection of the health of workers and the general public against the dangers arising from ionising radiations.The incorporation into Italian legislation of the European Community directives on the improvement of health and safety at work has promoted a vast effort in order to revise the surveillance approach in many facilities, including hospitals. In Italy, safety law is referred to every workplace; anyway the use of ionising radiations is ruled by specific laws. So in the health care structures it is necessary integrating both the laws and this process is often difficult to carry on. The Italian Legislative Decree 230/95, one the main laws that aim to protect workers against ionising radiations, introduced Directive 96/29/EURATOM. This Decree asks that a doctor and a technical expert analyse the workplace and classify area and workers in according to dose of ionising radiation established by law. The Italian Legislative Decree 626/94 asks that risk analysis in general is made by doctor and specialist in risk. So, in case of risk from ionising radiation, all these figures have to cooperate in order to make an evaluation risk document. (N.C.)

  14. Effects of honey bee (Hymenoptera: Apidae) and bumble bee (Hymenoptera: Apidae) presence on cranberry (Ericales: Ericaceae) pollination.

    Science.gov (United States)

    Evans, E C; Spivak, M

    2006-06-01

    Honey bees, Apis mellifera L., are frequently used to pollinate commercial cranberries, Vaccinium macrocarpon Ait., but information is lacking on the relative contribution of honey bees and native bees, the effects of surrounding vegetation on bee visitation, and on optimal timing for honey bee introduction. We begin with a descriptive study of numbers of honey bees, bumble bees, and other bees visiting cranberry blossoms, and their subsequent effect on cranberry yield, on three cranberry properties in 1999. The property surrounded by agricultural land, as opposed to wetlands and woodlands, had fewer numbers of all bee types. In 2000, one property did not introduce honey bee colonies, providing an opportunity to document the effect of lack of honey bees on yield. With no honey bees, plants along the edge of the bed had significantly higher berry weights compared with nonedge plants, suggesting that wild pollinators were only effective along the edge. Comparing the same bed between 1999, with three honey bee colonies per acre, and 2000, with no honey bees, we found a significant reduction in average berry size. In 2000, we compared stigma loading on properties with and without honey bees. Significantly more stigmas received the minimum number of tetrads required for fruit set on the property with honey bees. Significantly more tetrads were deposited during mid-bloom compared with early bloom, indicating that mid-bloom was the best time to have honey bees present. This study emphasizes the importance and effectiveness of honey bees as pollinators of commercial size cranberry plantings.

  15. Honey bees (Apis mellifera) as explosives detectors: exploring proboscis extension reflex conditioned response to trinitrotolulene (TNT)

    Energy Technology Data Exchange (ETDEWEB)

    Taylor-mccabe, Kirsten J [Los Alamos National Laboratory; Wingo, Robert M [Los Alamos National Laboratory; Haarmann, Timothy K [Los Alamos National Laboratory

    2008-01-01

    We examined honey bee's associative learning response to conditioning with trinitrotolulene (TNT) vapor concentrations generated at three temperatures and their ability to be reconditioned after a 24 h period. We used classical conditioning of the proboscis extension (PER) in honey bees using TNT vapors as the conditioned stimulus and sucrose as the unconditioned stimulus. We conducted fifteen experimental trials with an explosives vapor generator set at 43 C, 25 C and 5 C, producing three concentrations of explosives (1070 ppt, 57 ppt, and 11 ppt). Our objective was to test the honey bee's ability to exhibit a conditioned response to TNT vapors at all three concentrations by comparing the mean percentage of honey bees successfully exhibiting a conditioned response within each temperature group. Furthermore, we conducted eight experimental trials to test the honey bee's ability to retain their ability to exhibit a conditioned response to TNT after 24h period by comparing the mean percentage of honey bees with a conditioned response TNT on the first day compared to the percentage of honey bees with a conditioned response to TNT on the second day. Results indicate that there was no significant difference between the mean percentage of honey bees with a conditioned response to TNT vapors between three temperature groups. There was a significant difference between the percentage of honey bees exhibiting conditioned response on the first day of training compared to the percentage of honey bees exhibiting conditioned response 24 h after training. Our experimental results indicate that honey bees can be trained to exhibit a conditioned response to a range of TNT concentrations via PER However, it appears that the honey bee's ability to retain the conditioned response to TNT vapors after 24h significantly decreases.

  16. Territorial biodiversity and consequences on physico-chemical characteristics of pollen collected by honey bee colonies

    OpenAIRE

    Odoux, Jean Francois; Feuillet, Dalila; Aupinel, Pierrick; Loublier, Yves; Tasei, Jean Noel; Mateescu, Cristina

    2012-01-01

    International audience; Pollen resources may become a constraint for the honey bee in cereal farming agrosystems and thus influence honey bee colony development. This survey intended to increase knowledge on bee ecology in order to understand how farming systems can provide bee forage throughout the year. We conducted a 1-year study to investigate the flower range exploited in an agrarian environment in western France, the physico-chemical composition of honey bee-collected pollen, the territ...

  17. Proteomic analyses of male contributions to honey bee sperm storage and mating

    OpenAIRE

    Collins, A M; Caperna, T J; Williams, V; Garrett, W M; Evans, J D

    2006-01-01

    Honey bee (Apis mellifera L.) queens mate early in life and store sperm for years. Male bees likely contribute significantly to sperm survival. Proteins were extracted from seminal vesicles and semen of mature drones, separated by electrophoresis, and analysed by peptide mass fingerprinting. Computer searches against three databases, general species, honey bees and fruit flies, were performed. Spectra were used to query the recently generated honey bee genome protein list as well as general s...

  18. The habitat disruption induces immune-suppression and oxidative stress in honey bees

    OpenAIRE

    Morimoto, Tomomi; Kojima, Yuriko; Toki, Taku; Komeda, Yayoi; Yoshiyama, Mikio; Kimura, Kiyoshi; Nirasawa, Keijiro; Kadowaki, Tatsuhiko

    2011-01-01

    The honey bee is a major insect used for pollination of many commercial crops worldwide. Although the use of honey bees for pollination can disrupt the habitat, the effects on their physiology have never been determined. Recently, honey bee colonies have often collapsed when introduced in greenhouses for pollination in Japan. Thus, suppressing colony collapses and maintaining the number of worker bees in the colonies is essential for successful long-term pollination in greenhouses and recycli...

  19. IMPACT OF ADULTERATION WITH GLUCOSE, FRUCTOSE AND HYDROLYSED INULIN SYRUP ON HONEY PHYSICO-CHEMICAL PROPERTIES

    OpenAIRE

    Sorina ROPCIUC; Mircea OROIAN; Vlad OLARIU

    2017-01-01

    The aim of this study is to evaluate the influence of the adulteration with glucose, fructose, hydrolysed inulin syrup on honey physico-chemical properties (pH, aw, electrical conductivity (EC), water activity and colour parameters (L*, a*, b*, chroma)) of three honey samples of different botanical origins (acacia, tilia and polyfloral). The honeys were adulterated in different percentages (10%, 20%, 30%, 40% and 50% respectively) with glucose, fructose and hydrolysed inulin syrup. The moistu...

  20. Italianization Accomplished. Forms and Structures of Albanian Television’s Dependency on Italian Media and Culture

    Directory of Open Access Journals (Sweden)

    Paolo Carelli

    2014-06-01

    Full Text Available After the fall of the Berlin Wall and the end of communist regimes in 1989, national media systems of the Eastern European countries belonging to the Soviet bloc began a process of transformation along the way of liberalization and commercialization. In Albania, this process occurred in different phases, but with a common trend, that is the Italian television as a structural, economic and cultural model to inspire. In this article, I try to outline the deep influences and legacies between Italian and Albanian television systems (dating back to the last years of the regime showing how, despite a progressive sliding towards americanization, they remain a typical landmark of Albanian media. From the formats of the first programmes after the regime to the recent appearances of Italian Tv presenters (in particular, from Berlusconi's channels on Albanian private channels, we can observe a subtle but rooted and continuous dependency from the country on the other side of the Adriatic Sea.  

  1. Polish Yellow Sweet Clover (Melilotus officinalis L. Honey, Chromatographic Fingerprints, and Chemical Markers

    Directory of Open Access Journals (Sweden)

    Izabela Jasicka-Misiak

    2017-01-01

    Full Text Available A case study of Polish Melilotus officinalis honey was presented for the first time. Gas chromatography–mass spectrometry (GC-MS (after steam distillation, Soxhlet extraction, ultrasonic solvent extraction, and solid phase extraction (SPE and targeted high performance liquid chromatography with a photodiode array detector (HPLC-PAD were applied to determine the characteristic components of honey. While ubiquitous in most honeys, carbohydrates, terpene derivatives, and phenylacetic acid dominated in the Soxhlet extracts (25.54% and in the application of SPE (13.04%. In addition, lumichrome (1.85% was found, and may be considered as a marker of this honey. Due to the presence of these compounds, Polish yellow sweet clover honey is similar to French lavender honeys. The major compounds determined in the methanolic extract were (+-catechine (39.7% and gallic acid (up to 30%, which can be regarded as specific chemical markers of the botanical origin of melilot honey. With respect to total phenolic and flavonoid contents, 1,1-diphenyl-2-picrylhydrazyl (DPPH assays were determined spectrophotometrically. The honey exhibited a moderate antioxidant activity, typical for light honeys, which correlates well with its phenolic and flavonoid composition.

  2. [Discrimination of Rice Syrup Adulterant of Acacia Honey Based Using Near-Infrared Spectroscopy].

    Science.gov (United States)

    Zhang, Yan-nan; Chen, Lan-zhen; Xue, Xiao-feng; Wu, Li-ming; Li, Yi; Yang, Juan

    2015-09-01

    At present, the rice syrup as a low price of the sweeteners was often adulterated into acacia honey and the adulterated honeys were sold in honey markets, while there is no suitable and fast method to identify honey adulterated with rice syrup. In this study, Near infrared spectroscopy (NIR) combined with chemometric methods were used to discriminate authenticity of honey. 20 unprocessed acacia honey samples from the different honey producing areas, mixed? with different proportion of rice syrup, were prepared of seven different concentration gradient? including 121 samples. The near infrared spectrum (NIR) instrument and spectrum processing software have been applied in the? spectrum? scanning and data conversion on adulterant samples, respectively. Then it was analyzed by Principal component analysis (PCA) and canonical discriminant analysis methods in order to discriminating adulterated honey. The results showed that after principal components analysis, the first two principal components accounted for 97.23% of total variation, but the regionalism of the score plot of the first two PCs was not obvious, so the canonical discriminant analysis was used to make the further discrimination, all samples had been discriminated correctly, the first two discriminant functions accounted for 91.6% among the six canonical discriminant functions, Then the different concentration of adulterant samples can be discriminated correctly, it illustrate that canonical discriminant analysis method combined with NIR spectroscopy is not only feasible but also practical for rapid and effective discriminate of the rice syrup adulterant of acacia honey.

  3. Genetic diversity of Iranian honey bee (Apis mellifera meda Skorikow, 1829) populations based on ISSR markers.

    Science.gov (United States)

    Rahimi, A; Mirmoayedi, A; Kahrizi, D; Zarei, L; Jamali, S

    2016-04-30

    Honey bee is one of the most important insects considering its role in agriculture,ecology and economy as a whole. In this study, the genetic diversity of different Iranian honey bee populations was evaluated using inter simple sequence repeat (ISSR) markers. During May to September 2014, 108 young worker honey bees were collected from six different populations in 30 different geoclimatic locations from Golestan, Mazendaran, Guilan, West Azerbaijan, East Azerbaijan, Ardebil provinces of Iran. DNA was extracted from the worker honey bees. The quality and quantity of extracted DNA were measured. A set of ten primers were screened with the laboratory populations of honey bees. The number of fragments produced in the different honey bee populations varied from 3 to 10, varying within 150 to 1500 bp. The used ten ISSR primers generated 40 polymorphic fragments, and the average heterozygosity for each primer was 0.266. Maximum numbers of bands were recorded for primer A1. A dendrogram based on the Unweighted Pair Group Method with Arithmetic mean (UPGMA) method generated two sub-clusters. Honey bee populations of Golestan, Mazendaran, Guilan provinces were located in the first group. The second group included honey bee populations of Ardebil, West Azerbaijan, East Azerbaijan provinces, but this group showed a close relationship with other populations. The results showed obviously the ability of the ISSR marker technique to detect the genetic diversity among the honey bee populations.

  4. Indonesian honey protein isolation Apis dorsata dorsata and Tetragonula sp. as antibacterial and antioxidant agent

    Science.gov (United States)

    Sahlan, Muhamad; Damayanti, Vina; Azizah, Nurul; Hakamada, Kazuaki; Yohda, Masafumi; Hermansyah, Heri; Wijanarko, Anondho; Rohmatin, Etin

    2018-02-01

    Honey is a natural product that has many properties and been widely used for many theurapeutic purposes. Research on honey has been very rapid but not yet for Indonesia. Like local Indonesian honey Apis dorsata dorsata and Tetragonula sp. which has been widely consumed by the public but not yet known for certain efficacy of each content. The function of honey as antibacterial and antioxidant has not been specifically explained by the components contained in honey. Protein is one of the content of honey that turned out to have activity as an antibacterial and antioxidant in certain types of honey because of it antimicrobial peptide. Testing of honey activity as antibacterial and antioxidant through several stages including isolation, SDS-PAGE analysis, Bradford test, antibacterial activity test with well diffusion method and antioxidant activity test by DPPH method. Bacteria used were gram-positive bacteria Staphylococcus aureus and gram negative Escherichia coli. After some experiment finally got protein isolation method that is in the form of further concentration using Millipore membrane for honey Tetragonula sp. and membrane filtration dot blot for honey Apis dorsata dorsata. The Bradford assay showed that Apis dorsata dorsata honey contains protein <5 µg / ml, while honey Tetragonula sp. has a protein content of 97 µg / ml. The characteristic profile of molecular weight of the protein showed honey Tetragonula sp. has 3 protein bands composed of 52, 96 - 61,9 kDa, 63,35 - 65,92 kDa and 86,16 - 91,4 kDa, whereas Apis dorsata dorsata honey has 5 protein bands consisting of 45,2 - 46,6 kDa, 50,2 - 50,9 kDa, 62,5 - 62,9 kDa, 73,1 - 73,9 kDa, 83,9 - 86,9 kDa. Isolate honey protein Apis dorsata dorsata has no antioxidant and antibacterial activity (Staphylococcus aureus and Escherichia coli), whereas honey protein isolates Tetragonula sp. has antibacterial activity against Escherichia coli.

  5. The Determination of the Biochemical Properties of Some Monofloral Honey Samples Produced across Turkey

    Directory of Open Access Journals (Sweden)

    Aziz Gül

    2016-12-01

    Full Text Available This study was conducted in 2013 to determine the biochemical properties of 10 different monofloral honey types produced across Turkey. For the study, honey samples were obtained from beekeepers and the identity and relative percentage of dominant pollen types in samples was determined through microscopic analysis. Pollen analysis revealed that honey types chaste tree (Vitex agnus-castus and sunflower (Helianthus annuus contained high proportions of each respective pollen type. These proportions reached as high as 86%, while other honey types such as Anason had low Anasom pollen content, occurring at 45% in whole honey samples. Biochemical analysis revealed that the average honey sample quality characteristics were as followings: ash 0.37±0.04, electricity conductivity 0.79±0.07 mS/cm, moisture 19.15±0.09%, pH 3.97±0.02, acidity 29.07±0.39 meq/kg, hydroxymethylfurfural (HMF, 6.17±0.76 mg/kg, diastase 22.05±0.00, invert sugar 69.72±0.49% and sucrose 2.90±0.30%. These analyses confirmed that honey samples met standards outlined by the Turkish Food Codex Honey Standard, European Union Honey Standard and Codex Standards respectively.

  6. The pollen spectrum of honeys of Lipnik Gmina (Świętokrzyskie Province

    Directory of Open Access Journals (Sweden)

    Ernest Stawiarz

    2012-12-01

    Full Text Available During 2003 and 2004 apicultural seasons, 25 samples of honeys were collected in 10 localities of Lipnik (świętokrzyskie Province countryside. Pollen analysis was made according to the requirements of the International Commission for Bee Botany IUSB (Louveaux et al., 1978. There were identified pollen of 85 taxa in the examined samples of honeys: pollen of 62 nectariferous and 23 non-nectariferous plants. Participation of non-nectariferous plant pollen in particular samples ranged between 0.3 and 28.4%. Among the nectariferous plant pollen, the highest pollen frequency (above 50% have been stated for Brassicaceae (with Brassica napus, Prunus type, Trifolium repens, Anthriscus type, Salix, Aesculus, Rubus type, Tilia, Taraxacum type, Galeopsis and Heracleum type, among non-nectariferous plans: Poaceae, Papaver and Fragaria. On average, a particular honey contained 16 pollen types of nectariferous plants (range 7-26 and 7 of non-nectariferous (range 1-13. Among the examined samples, there were 11 specific honeys: 7 compatible with the Polish Standard - 4 samples of Brassica napus honeys, 2 Robinia pseudacacia, 1 Tilia, and 4 samples of honeys out of his this standard. There were 3 Galeopsis honeys and 1 honey from Phacelia. The remaining 14 samples were classified as multifloral honeys compatible with the Polish Standard. The woods and scrubs as well as meadows and pastures supplied main sources of honeybee flow in the examined area.

  7. Honey: A Skin Graft Fixator Convenient for Both Patient and Surgeon.

    Science.gov (United States)

    Maghsoudi, Hemmat; Moradi, Sohrab

    2015-12-01

    Skin grafts can be used effectively to cover burn injuries. A critical element of this treatment is the adherence of the graft to the wound bed. Honey has been shown to increase the adherence of skin grafts to wound beds and have antibacterial and anti-inflammatory effects and increase healing rate of wounds. We therefore devised a clinical trial to determine the effect of honey on skin graft fixation in burn injuries. Sixty patients were included in this study (in 30 patients, graft was fixed with medical honey, and in 30 patients, it was fixed with dressing or suturing). All patients in two groups were evaluated for infection, graft loss, graft contraction, severity of pain, and need for re-operation. The most common cause of burn was kerosene. Honey significantly decreased infection rate on fifth day and reduced the patient pain. The mean hospital stay was shorter in honey group. Contraction of graft was significantly less in honey group. Honey has strong adhesive properties for skin graft fixation. Medical honey is a natural material, not synthetic. For this reason, we can advise the application of medical honey for the fixation of split thickness skin graft.

  8. The use of stable isotopes for the characterization of honeys, their origin and adulteration

    International Nuclear Information System (INIS)

    Ziegler, Hubert; Stichler, Willibald; Maurizio, Anna.

    1977-01-01

    In general, plants used by bees as nectar sources belong to the C 3 -typ of photosynthetic CO 2 -fixation. As a consequence, honey mostly shows the delta 13 C-values of C 3 -plants. Addition of cane-sugar or corn-products ('isomerose syrup' or 'apireve') to the honey (or feeding these substances to bees) would change this delta 13 C-value. This allows a sensitive proof for the absence of such additions. The deltaD-values in the dry substance of honey may be used in special cases to identify the geographic origin of the honey

  9. Red mason bees cannot compete with honey bees for floral resources in a cage experiment.

    Science.gov (United States)

    Hudewenz, Anika; Klein, Alexandra-Maria

    2015-11-01

    Intensive beekeeping to mitigate crop pollination deficits and habitat loss may cause interspecific competition between bees. Studies show negative correlations between flower visitation of honey bees (Apis mellifera) and wild bees, but effects on the reproduction of wild bees were not proven. Likely reasons are that honey bees can hardly be excluded from controls and wild bee nests are generally difficult to detect in field experiments. The goal of this study was to investigate whether red mason bees (Osmia bicornis) compete with honey bees in cages in order to compare the reproduction of red mason bees under different honey bee densities. Three treatments were applied, each replicated in four cages of 18 m³ with 38 red mason bees in all treatments and 0, 100, and 300 honey bees per treatment with 10-20% being foragers. Within the cages, the flower visitation and interspecific displacements from flowers were observed. Niche breadths and resource overlaps of both bee species were calculated, and the reproduction of red mason bees was measured. Red mason bees visited fewer flowers when honey bees were present. Niche breadth of red mason bees decreased with increasing honey bee density while resource overlaps remained constant. The reproduction of red mason bees decreased in cages with honey bees. In conclusion, our experimental results show that in small and isolated flower patches, wild bees can temporarily suffer from competition with honey bees. Further research should aim to test for competition on small and isolated flower patches in real landscapes.

  10. The Impact of Pesticides on Honey Bees and Hence on Humans

    Directory of Open Access Journals (Sweden)

    Antonina Jivan

    2013-05-01

    Full Text Available Bee crisis is threatening global food security, given the fact that one third of global agricultural production relies on pollination, especially that of honey bees. Despite their importance for human being, honey bees die with alarming speed. In recent years, in Europe and America, due to pollution, pesticides and neglect there was registered an unprecedented rate of disappearance of honey bees. Einstein's theory, the fact that once the bees cease to exist, humanity has only four years to extinction, seems now truer than ever. Thus, the issue has gained a tone of maximum urgency; the bee crisis can entirely shatter the world food security, already affected by the economic crisis. There are plenty of factors that could cause honey bee population decline: disease, parasites, climatic factors (high temperature, drought or decrease in the diversity of honey flora. It may sometimes happen that the beekeeper himself causes the poisoning of his honey bees, use inappropriate products which should protect the honey bees. It is therefore possible to imagine a multi-factorial explanation of problems encountered by honey bees and to underestimate the key role of pesticides. Considering these, a review of the impact of pesticides on honey bees should not be superfluous.

  11. Phenolic profiles of nectar and honey of Quillaja saponaria Mol. (Quillajaceae as potential chemical markers

    Directory of Open Access Journals (Sweden)

    Gloria Montenegro

    2013-01-01

    Full Text Available Quillaja saponaria Mol. (Quillajaceae is one of the most important melliferous species in Chile, mainly as a source of monofloral honey. Honey made by A. mellifera presents biological activity against pathogens and antioxidant capacity associated with the presence of phenolic compounds deriving from the nectar, as a result of bee honey foraging. The aim of this study was to identify and quantify the phenolic compounds from the floral nectar of Q. saponaria and the honey made in apiaries in the central zone, and compare the composition of the chromatographic profiles of nectar and honey to known phenolic compounds. The results obtained by HPLC-DAD (high-performance liquid chromatography with diode-array detection showed a similar profile of phenolic compounds, in which gallic acid, myricetin, rutin, quercetin and naringenin were identified. The phenolic compounds detected could be used as a reference for future studies for determining potential chemical markers of this honey, complementing the present identification of honeys by determining their botanical origin. The identification of bioindicators of the floral origins for honey of this species could provide added value to honey commercialization by certifying the botanical origin of their chemical features and biological attributes.

  12. Traditional and Modern Uses of Natural Honey in Human Diseases: A Review

    Directory of Open Access Journals (Sweden)

    Tahereh Eteraf-Oskouei

    2013-06-01

    Full Text Available   Honey is a by-product of flower nectar and the upper aero-digestive tract of the honey bee, which is concentrated through a dehydration process inside the bee hive. Honey has a very complex chemical composition that varies depending on the botanical source. It has been used both as food and medicine since ancient times. Human use of honey is traced to some 8000 years ago as depicted by Stone Age paintings. In addition to important role of natural honey in the traditional medicine, during the past few decades, it was subjected to laboratory and clinical investigations by several research groups and it has found a place in modern medicine. Honey has been reported to have an inhibitory effect on around 60 species of bacteria, some species of fungi and viruses. Antioxidant capacity of honey is important in many disease conditions and is due to a wide range of compounds including phenolics, peptides, organic acids, enzymes, and Maillard reaction products. Honey has also been used in some gastrointestinal, cardiovascular, inflammatory and neoplastic states. This review covers the composition, physico-chemical properties and the most important uses of natural honey in human diseases.

  13. Geographical and Botanical Origin of Apis mellifera (Apidae) Honey in four Colombian Departments

    International Nuclear Information System (INIS)

    Nates Parra, Guiomar; Montoya, Paula Maria; Chamorro, Fermin J; Ramirez, Nedy; Giraldo, Catalina; Obregon, Diana

    2013-01-01

    The aim of this work was to find palynological markers which permit differentiate honeys from the departments of Boyaca, Cundinamarca, Santander and Magdalena, by its geographical and botanical origin. Melissopalynological analyses were made of 184 honey samples obtained from 131 localities. A discriminant analysis and comparisons between the species composition of honey samples were made to find geo-graphical and botanical origin differences. A total of 297 pollen species distributed in 69 families was found, being Mimosa sp., Cecropia sp., Eucalyptus sp., Piper sp. and Quercus humboldtii the most representatives. The major families were Fabaceae, Asteraceae, Myrtaceae, Rubiaceae, Fagaceae and Melastomataceae. Six honey groups differentiated by its geographical origin were found: Altiplano Cundiboyacense, Medio Chicamocha, Sumapaz, Bajo Chicamocha, Sierra Nevada de Santa Marta and Comunera Province. In a broader scale, honeys from the Andean and sub-Andean regions could be differentiated as well. Between the honey types differentiated by its botanical origin, the most important were monofloral honeys of Trifolium pratense, Coffea arabica, Eucalyptus sp., Inga sp. and Heliocarpus americanus, Asteraceae oligofloral honeys and mixtures of Q. humboldtii honeydew and floral nectar (Eucalyptussp., Brassicaceae Type, Asteraceae). This information in addition to the obtained by physico-chemical and sensorial analysis, may be the basis to acquire honeys' origin denomination.

  14. Italian Mediterranean Index and risk of colorectal cancer in the Italian section of the EPIC cohort.

    Science.gov (United States)

    Agnoli, Claudia; Grioni, Sara; Sieri, Sabina; Palli, Domenico; Masala, Giovanna; Sacerdote, Carlotta; Vineis, Paolo; Tumino, Rosario; Giurdanella, Maria Concetta; Pala, Valeria; Berrino, Franco; Mattiello, Amalia; Panico, Salvatore; Krogh, Vittorio

    2013-03-15

    Colorectal cancer is among the commonest cancers worldwide. Dietary factors have been linked to colorectal cancer risk, however, few studies have evaluated the relationship between a priori dietary patterns and colorectal cancer risk. We evaluated the effect of adherence to a Mediterranean dietary pattern, as measured by the Italian Mediterranean Index, on the risk of colorectal cancer in the 45,275 participants of the Italian section of the EPIC study who completed a dietary questionnaire. Hazard ratios (HRs) with 95% confidence intervals (CIs) for colorectal cancer in relation to categories of Italian Mediterranean Index score were estimated by multivariate Cox models adjusted for known risk factors, on the whole cohort, on men and women and according to cancer subsite. During a mean follow-up of 11.28 years, 435 colorectal cancer cases were identified. The Italian Mediterranean Index was inversely associated with colorectal cancer risk (HR: 0.50; 95% CI: 0.35-0.71 for the highest category compared to the lowest, P-trend: 0.043). Results did not differ by sex. Highest Italian Mediterranean Index score was also significantly associated with reduced risks of any colon cancer (HR: 0.54, 95% CI: 0.36-0.81), distal colon cancer (HR: 0.44, 95% CI: 0.26-0.75) and rectal cancer (HR: 0.41, 95% CI: 0.20-0.81), but not of proximal colon cancer. These findings suggest that adherence to a Mediterranean diet (as measured by the Italian Mediterranean Index) protects against colorectal cancer in general but not against cancer developing in the proximal colon. Copyright © 2012 UICC.

  15. Production in Italian industry: Electric power demand indicators

    International Nuclear Information System (INIS)

    Ajello, V.

    1993-01-01

    The effects of the recession in Italy were first evidenced during the period spanning 1990-1992 with a sharp drop in the international competitiveness of Italian products. This phase was then followed by a significant drop in internal demand, the devaluation of the Italian Lira and subsequent market uncertainty. This paper presents graphs of national and regional electric power production and consumption figures which reflect the downturn in the viability of the Italian economy, especially in the industrial sector

  16. Representation of the serial killer on the Italian Internet.

    Science.gov (United States)

    Villano, P; Bastianoni, P; Melotti, G

    2001-10-01

    The representation of serial killers was examined from the analysis of 317 Web pages in the Italian language to study how the psychological profiles of serial killers are described on the Italian Internet. The correspondence analysis of the content of these Web pages shows that in Italy the serial killer is associated with words such as "monster" and "horror," which suggest and imply psychological perversion and aberrant acts. These traits are peculiar for the Italian scenario.

  17. Italian Entrepreneurship: Conjectures and Evidence from a Historical Perspective

    OpenAIRE

    Pier Angelo Toninelli; Michelangelo Vasta

    2009-01-01

    This paper is the first product of an ongoing research on the determinants and the role of entrepreneurship in Italian economic development. Its primary aim is the creation of a data-set of Italian entrepreneurs for the period encompassed between the Unification of the Kingdom (1861) and the end of the XXth century. The main source of the research is a collection of 390 entrepreneurial biographies, prepared for an ongoing Dictionary of Italian Entrepreneurs. The first part of the paper presen...

  18. Report on SRS activities to March, 1981

    International Nuclear Information System (INIS)

    Munro, I.H.

    1981-10-01

    In this first Annual Report on synchrotron radiation research and related activities since the completion of the storage ring (the SRS) at Daresbury Laboratory a summary is given of progress on the storage ring itself, on beamlines, experimental stations, data acquisition and processing facilities and on the build-up of ancillary laboratories and equipment. In appendices a bibliography of synchrotron radiation research publications from March 1977 to March 1981 and a cumulative list of research grants and agreements approved by the SRFC from March 1977 to March 1981 are given. (U.K.)

  19. Researches on the Influence of Some Apicol Stimulators Use in the Supplemental Feeding of Honey Bee Colonies

    Directory of Open Access Journals (Sweden)

    Silvia Patruica

    2013-05-01

    Full Text Available This paper presents the results of supplemental feedings use applied to honey bee colonies in autumn. The experiments were carried out between August 20th 2011 and July 2012, in Berini locality, Timiș County (Romania, on 32 Apis meliffera honey bee colonies, divided into four experimental variants. Honey bee families were fed in order to supplement the honey food reserves with sugar syrup containing medicinal plants, or with APIMERA product. During the experimental period, there were being studied the number of brood combs after hibernation, the quantity of broods at the beginning of spring, as well as the quantity of honey and pollen obtained by the studied bee colonies. The best results regarding the development of honey bee colonies in spring were obtained in honey bee colonies for which food reserves have been supplemented with honey combs, followed by the bee colonies fed with sugar syrup containing medicinal plants supplements.

  20. Field populations of native Indian honey bees from pesticide intensive agricultural landscape show signs of impaired olfaction

    OpenAIRE

    Priyadarshini Chakrabarti; Santanu Rana; Sreejata Bandopadhyay; Dattatraya G. Naik; Sagartirtha Sarkar; Parthiba Basu

    2015-01-01

    Little information is available regarding the adverse effects of pesticides on natural honey bee populations. This study highlights the detrimental effects of pesticides on honey bee olfaction through behavioural studies, scanning electron microscopic imaging of antennal sensillae and confocal microscopic studies of honey bee brains for calcium ions on Apis cerana, a native Indian honey bee species. There was a significant decrease in proboscis extension response and biologically active free ...