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Zgodnie z rozporządzeniem Komisji (WE) nr 1441/2007 z dnia 5.12.2007 r. w sprawie kryteriów mikrobiologicznych dotyczących środków spożywczych nie ma obowiązku badania świeżych owoców i warzyw w kierunku obecności L. monocytogenes, mimo że jest coraz więcej informacji o izolacji tych bakterii z surowców roślinnych. Jakość owoców i warzyw w Polsce ocenia się na podstawie wzrokowej oceny świeżości,...
The natural precedence of microorganisms growth on the damp surfaces is the formation of biofilm. The arising biolayer, stabilized by extracellular substances, is becoming hard to remove biological structure, the enzymatic activity of which can lead to violation of the packaging, and consequently to acceleration of the process of food spoilage. The microorganisms of Pseudomonas species are widely...
Saccharomyces cerevisiae strains isolated from fish and subsurface layers of the Odra Estuary waters were examined. Statistical comparison showed that the increase in numbers of S. cerevisiae strains was related to an increase in the total number of yeasts and yeast-like fungi in tested samples. In case of analysis of fish mycoflora, correlation wasn’t observed between fish species, places of catch...
The effect of various concentrations of salt (0%, 0.7%, 1.5% and 3.6% of sodium chloride) on enzymatic activity of C. famata, C. lipolytica, C. colliculosa, C. holmi and C. albicans isolated from the Szczecin Lagoon was tested. The activity revealed low enzymatic activity of Candida isolated deceasing with the rise in concentration of NaCl in the medium. C. colliculosa expressed the lowest hydrolytic...
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