Case of Contamination by Listeria Monocytogenes in Mozzarella Cheese
| Autor: | Rita Tolli, Antonietta Gattuso, Teresa Bossù, Fabiola Di Giamberardino, Luigi Lanni, Silvia Vita, Eda Maria Flores Rodas, Veronica De Angelis, Sara Greco, Alessandro Di Sirio, Stefano Bilei, Michele Sonnessa |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Serotype
lcsh:TP368-456 Serotypes Short Communication PFGE Contamination Biology medicine.disease_cause Listeria monocytogenes Mozzarella PFGE Serotypes Listeria monocytogenes lcsh:Food processing and manufacture Lazio region Brining Pulsed-field gel electrophoresis medicine Food science Mozzarella Mozzarella cheese Food Science |
| Zdroj: | Italian Journal of Food Safety Italian Journal of Food Safety, Vol 3, Iss 1 (2014) |
| ISSN: | 2239-7132 |
| Popis: | Following a Listeria monocytogenes detection in a mozzarella cheese sampled at a dairy plant in Lazio Region, further investigations have been conducted both by the competent Authority and the food business operatordairy factory (as a part of dairy factory HACCP control). In total, 90 dairy products, 7 brine and 64 environmental samples have been tested. The prevalence of Listeria monocytogenes was 24.4% in mozzarella cheese, and 9.4% in environmental samples, while brines were all negatives. Forty-seven strains of L. monocytogenes have been isolated, all belonging to 4b/4e serotype. In 12 of these, the macrorestriction profile has been determined by means of pulsed field gel electrophoresis. The profiles obtained with AscI enzyme showed a 100% similarity while those obtained with ApaI a 96.78% similarity. These characteristics of the isolated strains jointly with the production process of mozzarella cheese has allowed to hypothesise an environmental contamination. |
| Databáze: | OpenAIRE |
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