| Autor: |
Marzocca MA; Laboratorio Control de Calidad, Cooperativa Obrera Limitada, Santa Fe 391 (8000) Bahía Blanca, Pcia, Buenos Aires, Argentina., Marucci PL, Sica MG, Alvarez EE |
| Jazyk: |
Spanish; Castilian |
| Zdroj: |
Revista Argentina de microbiologia [Rev Argent Microbiol] 2004 Oct-Dec; Vol. 36 (4), pp. 179-81. |
| Abstrakt: |
This work on Listeria monocytogenes detection in different foods was carried out between January 2002 and July 2003. Ninety cold-served cooked meats, sliced and packaged by different methods and 132 pieces of soft cheeses were studied. These products were analyzed using the presence/absence in 25 g criterion. L. monocytogenes was not found either in foods sliced over the counter or in controlled cheeses, but it was found in 10% of sliced cold-served foods and 5% of cut and cold-served meats vacuum packaged. These results led us to investigate the presence of these pathogen bacteria in different environmental samples. A hundred and fifteen points were swabbed including processing lines, raw materials, tools, and refrigerators. L. monocytogenes was found in 13.2% of the analyzed samples: 5% in packaging sector, 6.7% in meat processing lines and 1.5% in personalized sales. These results showed the presence of sites where the microorganism may reside and create reservoirs, so that routinary measures of hygiene and disinfection were increased. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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