نتایج جستجو برای: bee products
تعداد نتایج: 304174 فیلتر نتایج به سال:
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 a...
The European Union market is overflown by food supplements and an increasing number of consumers prefer those where bee products play an important part in their composition. This paper deals with complex European Union legislation concerning food supplements based on bee products, placing a special emphasis on their composition, labelling, and safety. Correct labelling of food supplements also ...
Aethina tumida Murray is an African native that has become an important pest of honey bee colonies in North America and Australia. Adults and larvae feed on pollen, honey, and brood in bee hives. The beetle is also able to feed and reproduce on fresh or rotting fruit, but natural occurrence on this diet has rarely been observed. We compared the reproductive success-as measured by progeny produc...
The mysterious disappearance of entire bee colonies, known as colony collapse disorder or CCD, has mystified researchers for a couple of years now (see Curr. Biol. 17, R389). It was first observed in the US, where highly industrialised bee-keeping practices mean that colonies are shipped across the continent to work large areas of a single crop. But whether this stress or other factors are resp...
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...
The mysterious disappearance of entire bee colonies, known as colony collapse disorder or CCD, has mystified researchers for a couple of years now (see Curr. Biol. 17, R389). It was first observed in the US, where highly industrialised bee-keeping practices mean that colonies are shipped across the continent to work large areas of a single crop. But whether this stress or other factors are resp...
argyrophilic staining of nucleolar organizer regions (agnor) has been considered to be useful in the diagnosis and prognostic evaluation of different cutaneous tumors. in order to evaluate the role of the agnor technique in discriminating aggressive from non-aggressive basal cell carcinoma (bcc), paraffin-embedded histologic sections from 30 cases of aggressive bcc (bcc2) and 30 cases of non-ag...
abstract background: bee-collected pollen and propolis are apicultural products which are recognized as a well balanced food. these beehive products are composed of nutritionally valuable substances and contain considerable amounts of polyphenol substances which may have several useful pharmacological properties. methods: the protective activity of bee-collected pollen (bpe) and water-soluble d...
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