Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/6762
Título: Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control process
Autor: Pinto, Ana Luísa
Teixeira, Paula
Castilho, Fernanda
Felício, Maria Teresa
Pombal, Filomena
Palavras-chave: Listeria monocytogenes
Prevalence
Serotyping
Live bivalve molluscs
Sanitary control
Data: 2006
Editora: Blackwell Publishing Ltd
Citação: "Aquaculture research" . ISSN 1355-557X . 37: 11 (2006) 1112-1116
Resumo: The prevalence and contamination levels of Listeria monocytogenes were investigated in live bivalve molluscs for human consumption, collected in various steps of the commercial and sanitary circuits in the North of Portugal. Samples of di¡erent species were collected per lot before and after depuration treatment in two depuration units and further, when placed in retail markets. Listeria monocytogenes was isolated from 4% of the samples although with very low contamination levels (less than 100MPNg 1). None of the environmental (non-depurated) samples were contaminated with the food-borne pathogen. The positive samples involved depurated and commercialized samples from two lots, one in each circuit. Two serotypes (1/2a and 3b) were detected among the isolated strains. This study demonstrated the possibility of occurrence of L.monocytogenes contamination of live bivalvemolluscs along the sanitary control circuit, including at the retailmarket level. As L. monocytogenes grows well at refrigerated temperatures and in high salt matrixes such as seafood its presence in these products should not be overlooked.
Peer review: yes
URI: http://hdl.handle.net/10400.14/6762
Versão do Editor: The definitive version is available at www.blackwell-synergy.com
Aparece nas colecções:ESB - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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