Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control process

Detalhes bibliográficos
Autor(a) principal: Pinto, Ana Luísa
Data de Publicação: 2006
Outros Autores: Teixeira, Paula, Castilho, Fernanda, Felício, Maria Teresa, Pombal, Filomena
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.14/6762
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.
id RCAP_ea343f85695090ade1fa5f35e1632064
oai_identifier_str oai:repositorio.ucp.pt:10400.14/6762
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control processListeria monocytogenesPrevalenceSerotypingLive bivalve molluscsSanitary controlThe 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.Blackwell Publishing LtdVeritati - Repositório Institucional da Universidade Católica PortuguesaPinto, Ana LuísaTeixeira, PaulaCastilho, FernandaFelício, Maria TeresaPombal, Filomena2011-10-22T09:12:34Z20062006-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.14/6762eng"Aquaculture research" . ISSN 1355-557X . 37: 11 (2006) 1112-1116info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-12T17:09:24Zoai:repositorio.ucp.pt:10400.14/6762Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:05:02.320865Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control process
title Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control process
spellingShingle Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control process
Pinto, Ana Luísa
Listeria monocytogenes
Prevalence
Serotyping
Live bivalve molluscs
Sanitary control
title_short Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control process
title_full Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control process
title_fullStr Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control process
title_full_unstemmed Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control process
title_sort Prevalence and serotyping of Listeria monocytogenes in Portuguese live bivalve molluscs sampled in various steps along the sanitary control process
author Pinto, Ana Luísa
author_facet Pinto, Ana Luísa
Teixeira, Paula
Castilho, Fernanda
Felício, Maria Teresa
Pombal, Filomena
author_role author
author2 Teixeira, Paula
Castilho, Fernanda
Felício, Maria Teresa
Pombal, Filomena
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Veritati - Repositório Institucional da Universidade Católica Portuguesa
dc.contributor.author.fl_str_mv Pinto, Ana Luísa
Teixeira, Paula
Castilho, Fernanda
Felício, Maria Teresa
Pombal, Filomena
dc.subject.por.fl_str_mv Listeria monocytogenes
Prevalence
Serotyping
Live bivalve molluscs
Sanitary control
topic Listeria monocytogenes
Prevalence
Serotyping
Live bivalve molluscs
Sanitary control
description 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.
publishDate 2006
dc.date.none.fl_str_mv 2006
2006-01-01T00:00:00Z
2011-10-22T09:12:34Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.14/6762
url http://hdl.handle.net/10400.14/6762
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Aquaculture research" . ISSN 1355-557X . 37: 11 (2006) 1112-1116
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Blackwell Publishing Ltd
publisher.none.fl_str_mv Blackwell Publishing Ltd
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799131712921272320

Registros relacionados