Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment

Detalhes bibliográficos
Autor(a) principal: Bernardo, Rita
Data de Publicação: 2020
Outros Autores: BARRETO, ANTONIO, Nunes, Telmo, Henriques, Ana Rita
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/24115
Resumo: Research Areas: Public, Environmental & Occupational Health ; Mathematics ; Mathematical Methods In Social Sciences
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spelling Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessmentChallenge testingListeria monocytogenesPredictive growth modelsQuantitative microbial risk assessmentReady-to-eat saladResearch Areas: Public, Environmental & Occupational Health ; Mathematics ; Mathematical Methods In Social SciencesCurrently, there is a growing preference for convenience food products, such as ready-toeat (RTE) foods, associated with long refrigerated shelf-lives, not requiring a heat treatment prior to consumption. Because Listeria monocytogenes is able to grow at refrigeration temperatures, inconsistent temperatures during production, distribution, and at consumer’s household may allow for the pathogen to thrive, reaching unsafe limits. L. monocytogenes is the causative agent of listeriosis, a rare but severe human illness, with high fatality rates, transmitted almost exclusively by food consumption. With the aim of assessing the quantitative microbial risk of L. monocytogenes in RTE chicken salads, a challenge test was performed. Salads were inoculated with a three-strain mixture of cold-adapted L. monocytogenes and stored at 4, 12, and 16 °C for eight days. Results revealed that the salad was able to support L. monocytogenes’ growth, even at refrigeration temperatures. The Baranyi primary model was fitted to microbiological data to estimate the pathogen’s growth kinetic parameters. Temperature effect on the maximum specific growth rate (μmax) was modeled using a square-root-type model. Storage temperature significantly influenced μmax of L. monocytogenes (p < 0.05). These predicted growth models for L. monocytogenes were subsequently used to develop a quantitative microbial risk assessment, estimating a median number of 0.00008726 listeriosis cases per year linked to the consumption of these RTE salads. Sensitivity analysis considering different time–temperature scenarios indicated a very low median risk per portion (<−7 log), even if the assessed RTE chicken salad was kept in abuse storage conditions.WileyRepositório da Universidade de LisboaBernardo, RitaBARRETO, ANTONIONunes, TelmoHenriques, Ana Rita2022-04-19T21:30:38Z2020-112020-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/24115engBernardo R, Barreto AS, Nunes T, Henriques AR. 2020. Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment. Risk Analysis, 40(11):pp.2427-2441. Doi 10.1111/risa.135460272-433210.1111/risa.135461539-6924info: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:RCAAP2023-03-06T14:53:45Zoai:www.repository.utl.pt:10400.5/24115Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:08:14.053779Repositório 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 Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment
title Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment
spellingShingle Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment
Bernardo, Rita
Challenge testing
Listeria monocytogenes
Predictive growth models
Quantitative microbial risk assessment
Ready-to-eat salad
title_short Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment
title_full Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment
title_fullStr Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment
title_full_unstemmed Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment
title_sort Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment
author Bernardo, Rita
author_facet Bernardo, Rita
BARRETO, ANTONIO
Nunes, Telmo
Henriques, Ana Rita
author_role author
author2 BARRETO, ANTONIO
Nunes, Telmo
Henriques, Ana Rita
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Bernardo, Rita
BARRETO, ANTONIO
Nunes, Telmo
Henriques, Ana Rita
dc.subject.por.fl_str_mv Challenge testing
Listeria monocytogenes
Predictive growth models
Quantitative microbial risk assessment
Ready-to-eat salad
topic Challenge testing
Listeria monocytogenes
Predictive growth models
Quantitative microbial risk assessment
Ready-to-eat salad
description Research Areas: Public, Environmental & Occupational Health ; Mathematics ; Mathematical Methods In Social Sciences
publishDate 2020
dc.date.none.fl_str_mv 2020-11
2020-11-01T00:00:00Z
2022-04-19T21:30:38Z
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/10400.5/24115
url http://hdl.handle.net/10400.5/24115
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Bernardo R, Barreto AS, Nunes T, Henriques AR. 2020. Estimating Listeria monocytogenes growth in ready-to-eat chicken salad using a challenge test for quantitative microbial risk assessment. Risk Analysis, 40(11):pp.2427-2441. Doi 10.1111/risa.13546
0272-4332
10.1111/risa.13546
1539-6924
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 Wiley
publisher.none.fl_str_mv Wiley
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
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