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Studies on diet of vendace from the Maróz Lake were carried out to determine sea- sonal changes in food composition in relation to changes of zooplankton food resources in the environment. Fish samples, were collected once a month from April to November in the years 1994–1996. A total of 409 alimentary tracts were analyzed. Simultane- ously, crustacean zooplankton samples were collected to assess...
Diarrhoea, dysentery and other diseases due to other enteric bacteria have reportedly been found to resist chemotherapeutic treatment in some West African communities with fatal consequences in some cases. This study was carried out to determine multidrug resistance patterns of Enterobacteria isolates from processed ready-to-eat foods. Indigenously processed food samples of different types were collected...
So far, besides some specialised Neotropical ant species of the genus Cephalotes Latr., the Palaearctic Myrmica schencki Viereck, M. rubra (L.) and Tetramorium cf. caespitum (L.) were known to be, at least facultative, pollen-eaters. The present paper reports on nine other common Palaearctic ant species occasionally feeding on pine pollen: Myrmica ruginodis Nyl., F. pratensis Retz., F. cinerea Mayr,...
Fluorimetric method based on oxidation of the fluorogenic 6-methoxy-2-naphthaldehyde was applied to evaluate temporal and population variability of the specific activity of salivary aldehyde dehydrogenase (ALDH) and the degree of its inactivation in healthy human population. Analyzed was also its dependence on drinking and smoking habits, coffee consumption, and its sensitivity to N-acetylcysteine...
The objective of our study was to determine acrylamide level in foods randomly taken from all over Poland in 2007 according to the Commission Recommendation (2007/331/EC). We analysed the acrylamide level using GCQ-MS/MS method. The acrylamide content in tested 119 foods varied from 18 to 2175 µg/kg of product. The highest mean value of this substance was found out in the pre-cooked French fries (1125...
Two methods used for serotyping of Listeria monocytogenes were compared: 1) in-house method, which is used routinely in the National Reference Laboratory (NRL), Dolný Kubín, (Slovakia) and 2) the method recommended by the European Union Reference Laboratory (EURL) in Paris. Thirty strains of L. monocytogenes used for serotyping were isolated from various food categories and swabs in both the EURL...
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