نتایج جستجو برای: bee products

تعداد نتایج: 304174  

2016
Christina L. Mogren Jonathan G. Lundgren

Worldwide pollinator declines are attributed to a number of factors, including pesticide exposures. Neonicotinoid insecticides specifically have been detected in surface waters, non-target vegetation, and bee products, but the risks posed by environmental exposures are still not well understood. Pollinator strips were tested for clothianidin contamination in plant tissues, and the risks to hone...

2017
Michael Simone-Finstrom Renata S. Borba Michael Wilson Marla Spivak

Honey bees (Apis mellifera) are constantly dealing with threats from pathogens, pests, pesticides and poor nutrition. It is critically important to understand how honey bees' natural immune responses (individual immunity) and collective behavioral defenses (social immunity) can improve bee health and productivity. One form of social immunity in honey bee colonies is the collection of antimicrob...

2017
Ying-Hong Li Bei-Lei Zhou Ming-Rong Qian Qiang Wang Hu Zhang

Carbendazim is usually used to control the Sclerotinia sclerotiorum of rapes during the flowering period. This paper presents a study on transfer assessment of carbendazim residues from rape flowers to apicultural products. In the field trials, the rapes were sprayed with carbendazim on standard dosage. Bees produced apicultural products (bee pollen, honey, and royal jelly) from sprayed rapes. ...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 1988
T Hashimoto M Tori Y Asakawa E Wollenweber

The prenyl ester and the phenylethyl ester of caffeic acid, formed in the bud excretion of poplar species, were shown recently to be the major contact allergens in bee-glue. An unambiguous synthesis of these compounds, based on the reaction of caffeic acid with 1-bromo-3-methyl-2-butene and with beta-bromoethylbenzene, respectively, is reported. The synthetic products confirm the previously des...

Journal: :Allergologia et immunopathologia 2006
S Celikel G Karakaya N Yurtsever K Sorkun A F Kalyoncu

BACKGROUND The prevalence of allergic reactions due to bee stings in beekeepers varies in different regions of the world. The aim of this study was to evaluate the characteristics of sting reactions and the risk factors for developing systemic reactions in Turkish beekeepers. METHODS A self-administered questionnaire was distributed to 1250 beekeepers to be completed in seven different cities...

Journal: :Poltekita 2023

The main problems found in the Malaya Farmer Group Pasirjambu District which are partners, related to honey bee harvesting techniques and diversification of products. Some methods applied achieve target coordination with domestic foreign partners through outreach, discussions, identification problem solutions, selection alternative solutions problems, formulation implementation stages. Then tra...

Journal: :BMC Complementary and Alternative Medicine 2009

2015
Zuzana Zelinkova Thomas Wenzl

Several food supplements comprising botanical, oil and bee products collected from retail markets in different countries were tested for the occurrence of 4 EU marker Polycyclic aromatic hydrocarbons (PAHs; benz[a]anthracene, chrysene, benzo[b]fluoranthene and benzo[a]pyrene). A robust GC/MS-based stable-isotope dilution method was used taking into account the differences in the type of matrice...

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