Occurrence of Yersinia enterocolitica in Raw and Pasteurized Milk
| Autor: | Ahmed A-H. Ahmed, Elmer H. Marth, Moustafa K. Moustafa |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Antiserum
food.ingredient biology Chemistry food and beverages Pasteurization Enterotoxin Raw milk Isolation (microbiology) biology.organism_classification Microbiology law.invention chemistry.chemical_compound fluids and secretions food law bacteria Agar Food science Yersinia enterocolitica MacConkey agar Food Science |
| Zdroj: | Journal of food protection. 46(4) |
| ISSN: | 1944-9097 |
| Popis: | Raw milk (100 samples) and pasteurized milk (100 samples) were assayed for presence of Yersinia enterocolitica , using four different enrichment and post-enrichment techniques. Isolation of Y. enterocolitica was made on MacConkey agar and Cefsulodin-Irgasan-Novobiocin (CIN) agar directly from incubated broths containing the milk, and after treatment of enrichment broths with a potassium hydroxide solution. Twelve samples of raw milk and one of pasteurized milk contained Y. enterocolitica . Nearly all isolates were found after KOH treatment. All isolates except that obtained from the pasteurized milk sample produced detectable levels of heat-stable enterotoxin. However, none of the 13 isolates agglutinated in WA-SAA, an antiserum specific for virulent Y. enterocolitica . |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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