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Use este identificador para citar ou linkar para este item: https://repositorio.ufba.br/handle/ri/8006
Tipo: Artigo de Periódico
Título: Occurrence of Listeria spp. in critical control points and the environment of Minas Frescal cheese processing
Título(s) alternativo(s): International Journal of Food Microbiology
Autor(es): Silva, Isabella M. M.
Almeida, Rogeria Comastri de Castro
Alves, M. A. O.
Almeida, Paulo Fernando de
Autor(es): Silva, Isabella M. M.
Almeida, Rogeria Comastri de Castro
Alves, M. A. O.
Almeida, Paulo Fernando de
Abstract: Critical control points (CCPs) associated with Minas Frescal cheese (a Brazilian soft white cheese, eaten fresh) processing in two dairy factories were determined using flow diagrams and microbiological tests for detection of Listeria monocytogenes and other species of Listeria. A total of 218 samples were collected along the production line and environment. The CCPs identified were reception of raw milk, pasteurization, coagulation and storage. Thirteen samples were positive for Listeria; 9 samples were Listeria innocua, 2 were Listeria grayi and 2 were L. monocytogenes. In factory A, Listeria was found in 50% of raw milk samples, 33.3% of curd samples, 16.7% of pasteurized milk samples, 16.7% of cheese samples and 25% of rubber pipes used to transport the whey. The microorganism was not obtained from environmental samples in this plant. In factory B, Listeria was found in one sample of raw milk (16.7%) and in three samples of environment (17.6%) and L. monocytogenes was obtained from raw milk (16.7%) and the floor of the cheese refrigeration room (14.3%). Two serotypes, 4b and 1/2a, were observed among the strains of L. monocytogenes isolated, both which are frequently involved in outbreaks of food-borne listeriosis and sporadic cases of the disease all over the world.
Palavras-chave: Listeria monocytogenes
Minas Frescal cheese
Critical control points
Environmental sampling
Editora / Evento / Instituição: International Journal of Food Microbiology
URI: http://www.repositorio.ufba.br/ri/handle/ri/8006
Data do documento: 2002
Aparece nas coleções:Artigo Publicado em Periódico (Escola de Nutrição)

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