Quantificação de Listeria monocytogenes em salames fatiados embalados a vácuo / Occurrence of Listeria monocytogenes in pre-sliced vacuum-packaged
Arch. latinoam. nutr
;
53(2): 184-187, jun. 2003.
Article
in Portuguese
| LILACS
| ID: lil-356570
RESUMO
There is scarce information in Brazil and other South American countries about the occurrence of Listeria monocytogenes in food, mainly refrigerated ready-to-eat products. The consumption of sliced vacuum-packaged meat products has increased in the last few years. Nevertheless, a complete assessment of the risk associated with L. monocytogenes in these products is still necessary. Because of the production and storage characteristics of these products, they can be considered potential vehicles for L. monocytogenes to humans, mainly immunocompromised, elderly, and pregnant women. The objectives of this study was to evaluate the population of L. monocytogenes in salami, a ready-to-eat meat product with extended shelf life, acquired in retail stores in São Paulo-Brazil. The three-tube most probable number technique was used and the methodology was that from Health Canada. Strains were biochemically identified and serotyped. Among the 45 samples, 3 (6.7 per cent) harboured 9.2 MPN/g of L. monocytogenes and the others < 0.3 MPN/g. All the strains belonged to serotypes 1/2a and 1/2b, the most frequent serotypes found in food everywhere. Even being low, the population of L. monocytogenes found in this product could be a cause of concern to public health authorities as it can pose a threat to population at risk. This contamination highlights the importance of implementing systems like HACCP to assure safe products to consumers.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Food Packaging
/
Food Microbiology
/
Food Preservation
/
Listeria monocytogenes
/
Meat Products
Type of study:
Prognostic study
Country/Region as subject:
South America
/
Brazil
Language:
Portuguese
Journal:
Arch. latinoam. nutr
Journal subject:
Bioqu¡mica
/
EducaÆo Alimentar e Nutricional
/
Fenmenos Fisiol¢gicos da NutriÆo
/
Microbiologia de Alimentos
/
NUTRICAO
Year:
2003
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade de São Paulo/BR
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