2,4,6-Trichloroanisole: A consumer panel evaluation

Detalhes bibliográficos
Autor(a) principal: Teixeira,Margarida I. V.
Data de Publicação: 2006
Outros Autores: Romão,M. Vitória San, Bronze,M. Rosário, Vilas Boas,Luís
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0254-02232006000200001
Resumo: The "cork taint" is a major problem in wine industry and may caused by the several sources of contamination although wine cork stoppers are usually subject to suspition: 2,4,6-trichloroanisole (TCA) has been frequently associated to this off-flavour. In this work, a consumer panel performed "forced choice" triangular tests in order to measure Odour Detection Thresholds (ODT) and Taste Detection Thresholds (TDT) of TCA in water, hydro-alcoholic solutions (11.5% and 18% ethanol) and white and red wines. A paired preference test was also performed by the panel in order to measure Odour Rejection Threshold (ORT) in white and red wines spiked with TCA. Results obtained show that the ODT and the TDT for TCA were respectively: 0.2 and 0.3 ng/ L in water, 0.9 and 1.7 ng/L in red wine and 1.5 and 1.0 ng/L in white wine. ODT were 4 and 10 ng/L respectively for hydro-alcoholic solutions with 11.5% and 18% ethanol. ORT for white wines was 10.4 ng/L and for red wines 16.0 ng/L. These results suggest that although this group of non trained assessors detected very low concentrations of TCA in wines, they did not reject the wine at these low concentration values.
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spelling 2,4,6-Trichloroanisole: A consumer panel evaluationTCACork taintwinesensory evaluationThe "cork taint" is a major problem in wine industry and may caused by the several sources of contamination although wine cork stoppers are usually subject to suspition: 2,4,6-trichloroanisole (TCA) has been frequently associated to this off-flavour. In this work, a consumer panel performed "forced choice" triangular tests in order to measure Odour Detection Thresholds (ODT) and Taste Detection Thresholds (TDT) of TCA in water, hydro-alcoholic solutions (11.5% and 18% ethanol) and white and red wines. A paired preference test was also performed by the panel in order to measure Odour Rejection Threshold (ORT) in white and red wines spiked with TCA. Results obtained show that the ODT and the TDT for TCA were respectively: 0.2 and 0.3 ng/ L in water, 0.9 and 1.7 ng/L in red wine and 1.5 and 1.0 ng/L in white wine. ODT were 4 and 10 ng/L respectively for hydro-alcoholic solutions with 11.5% and 18% ethanol. ORT for white wines was 10.4 ng/L and for red wines 16.0 ng/L. These results suggest that although this group of non trained assessors detected very low concentrations of TCA in wines, they did not reject the wine at these low concentration values.INIAV - DOIS PORTOS (Ex-Estação Vitivinícola Nacional)2006-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0254-02232006000200001Ciência e Técnica Vitivinícola v.21 n.2 2006reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0254-02232006000200001Teixeira,Margarida I. V.Romão,M. Vitória SanBronze,M. RosárioVilas Boas,Luísinfo:eu-repo/semantics/openAccess2024-02-06T16:57:44Zoai:scielo:S0254-02232006000200001Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:14:47.434206Repositório 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 2,4,6-Trichloroanisole: A consumer panel evaluation
title 2,4,6-Trichloroanisole: A consumer panel evaluation
spellingShingle 2,4,6-Trichloroanisole: A consumer panel evaluation
Teixeira,Margarida I. V.
TCA
Cork taint
wine
sensory evaluation
title_short 2,4,6-Trichloroanisole: A consumer panel evaluation
title_full 2,4,6-Trichloroanisole: A consumer panel evaluation
title_fullStr 2,4,6-Trichloroanisole: A consumer panel evaluation
title_full_unstemmed 2,4,6-Trichloroanisole: A consumer panel evaluation
title_sort 2,4,6-Trichloroanisole: A consumer panel evaluation
author Teixeira,Margarida I. V.
author_facet Teixeira,Margarida I. V.
Romão,M. Vitória San
Bronze,M. Rosário
Vilas Boas,Luís
author_role author
author2 Romão,M. Vitória San
Bronze,M. Rosário
Vilas Boas,Luís
author2_role author
author
author
dc.contributor.author.fl_str_mv Teixeira,Margarida I. V.
Romão,M. Vitória San
Bronze,M. Rosário
Vilas Boas,Luís
dc.subject.por.fl_str_mv TCA
Cork taint
wine
sensory evaluation
topic TCA
Cork taint
wine
sensory evaluation
description The "cork taint" is a major problem in wine industry and may caused by the several sources of contamination although wine cork stoppers are usually subject to suspition: 2,4,6-trichloroanisole (TCA) has been frequently associated to this off-flavour. In this work, a consumer panel performed "forced choice" triangular tests in order to measure Odour Detection Thresholds (ODT) and Taste Detection Thresholds (TDT) of TCA in water, hydro-alcoholic solutions (11.5% and 18% ethanol) and white and red wines. A paired preference test was also performed by the panel in order to measure Odour Rejection Threshold (ORT) in white and red wines spiked with TCA. Results obtained show that the ODT and the TDT for TCA were respectively: 0.2 and 0.3 ng/ L in water, 0.9 and 1.7 ng/L in red wine and 1.5 and 1.0 ng/L in white wine. ODT were 4 and 10 ng/L respectively for hydro-alcoholic solutions with 11.5% and 18% ethanol. ORT for white wines was 10.4 ng/L and for red wines 16.0 ng/L. These results suggest that although this group of non trained assessors detected very low concentrations of TCA in wines, they did not reject the wine at these low concentration values.
publishDate 2006
dc.date.none.fl_str_mv 2006-01-01
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://scielo.pt/scielo.php?script=sci_arttext&pid=S0254-02232006000200001
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dc.language.iso.fl_str_mv eng
language eng
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv INIAV - DOIS PORTOS (Ex-Estação Vitivinícola Nacional)
publisher.none.fl_str_mv INIAV - DOIS PORTOS (Ex-Estação Vitivinícola Nacional)
dc.source.none.fl_str_mv Ciência e Técnica Vitivinícola v.21 n.2 2006
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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
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