A new capacitance medium for presumptive detection of Listeria spp. from cheese samples

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Maria José R. M.
Data de Publicação: 1995
Outros Autores: Capell, Christopher J., Kirby, Roy M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.14/6112
Resumo: The paper presents a new medium and a method for the rapid presumptive detection of Listeria spp. in cheese samples by electrical capacitance changes. The Bactometer based capacitance broth (LED medium) required a 30% change in signal within 30 h to identify presumptive positive results. Of 32 cheese samples tested, 10 were found to contain Listeria spp. using a Fraser broth screening method and 12 using the LED medium and method. The LED method also gave 16 fewer (total = 1) false presumptive positive results. Results show the LED method to be superior to Fraser broth in regard to both the number of false presumptive positive and confirmed false negative results detected. The method appears to be suitable as a reliable rapid screen for the presence of Listeria spp. in cheese.
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spelling A new capacitance medium for presumptive detection of Listeria spp. from cheese samplesBactometerElectrical detectionListeriaPortuguese cheesePresumptive mediaThe paper presents a new medium and a method for the rapid presumptive detection of Listeria spp. in cheese samples by electrical capacitance changes. The Bactometer based capacitance broth (LED medium) required a 30% change in signal within 30 h to identify presumptive positive results. Of 32 cheese samples tested, 10 were found to contain Listeria spp. using a Fraser broth screening method and 12 using the LED medium and method. The LED method also gave 16 fewer (total = 1) false presumptive positive results. Results show the LED method to be superior to Fraser broth in regard to both the number of false presumptive positive and confirmed false negative results detected. The method appears to be suitable as a reliable rapid screen for the presence of Listeria spp. in cheese.ElsevierVeritati - Repositório Institucional da Universidade Católica PortuguesaRodrigues, Maria José R. M.Capell, Christopher J.Kirby, Roy M.2011-10-14T16:09:27Z19951995-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.14/6112engRODRIGUES, Maria José R. M.; CAPELL, Christopher J.; KIRBY, Roy M. - A new capacitance medium for presumptive detection of Listeria spp. from cheese samples. Journal of Microbiological Methods. ISSN 0167-7012. Vol. 23 n.º 3 (1995), p. 291-29610.1016/0167-7012(95)00028-Jinfo: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:RCAAP2023-09-26T01:40:18Zoai:repositorio.ucp.pt:10400.14/6112Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:06:10.684036Repositório 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 A new capacitance medium for presumptive detection of Listeria spp. from cheese samples
title A new capacitance medium for presumptive detection of Listeria spp. from cheese samples
spellingShingle A new capacitance medium for presumptive detection of Listeria spp. from cheese samples
Rodrigues, Maria José R. M.
Bactometer
Electrical detection
Listeria
Portuguese cheese
Presumptive media
title_short A new capacitance medium for presumptive detection of Listeria spp. from cheese samples
title_full A new capacitance medium for presumptive detection of Listeria spp. from cheese samples
title_fullStr A new capacitance medium for presumptive detection of Listeria spp. from cheese samples
title_full_unstemmed A new capacitance medium for presumptive detection of Listeria spp. from cheese samples
title_sort A new capacitance medium for presumptive detection of Listeria spp. from cheese samples
author Rodrigues, Maria José R. M.
author_facet Rodrigues, Maria José R. M.
Capell, Christopher J.
Kirby, Roy M.
author_role author
author2 Capell, Christopher J.
Kirby, Roy M.
author2_role author
author
dc.contributor.none.fl_str_mv Veritati - Repositório Institucional da Universidade Católica Portuguesa
dc.contributor.author.fl_str_mv Rodrigues, Maria José R. M.
Capell, Christopher J.
Kirby, Roy M.
dc.subject.por.fl_str_mv Bactometer
Electrical detection
Listeria
Portuguese cheese
Presumptive media
topic Bactometer
Electrical detection
Listeria
Portuguese cheese
Presumptive media
description The paper presents a new medium and a method for the rapid presumptive detection of Listeria spp. in cheese samples by electrical capacitance changes. The Bactometer based capacitance broth (LED medium) required a 30% change in signal within 30 h to identify presumptive positive results. Of 32 cheese samples tested, 10 were found to contain Listeria spp. using a Fraser broth screening method and 12 using the LED medium and method. The LED method also gave 16 fewer (total = 1) false presumptive positive results. Results show the LED method to be superior to Fraser broth in regard to both the number of false presumptive positive and confirmed false negative results detected. The method appears to be suitable as a reliable rapid screen for the presence of Listeria spp. in cheese.
publishDate 1995
dc.date.none.fl_str_mv 1995
1995-01-01T00:00:00Z
2011-10-14T16:09:27Z
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/10400.14/6112
url http://hdl.handle.net/10400.14/6112
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv RODRIGUES, Maria José R. M.; CAPELL, Christopher J.; KIRBY, Roy M. - A new capacitance medium for presumptive detection of Listeria spp. from cheese samples. Journal of Microbiological Methods. ISSN 0167-7012. Vol. 23 n.º 3 (1995), p. 291-296
10.1016/0167-7012(95)00028-J
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 Elsevier
publisher.none.fl_str_mv Elsevier
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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