2,4,6-Trichloroanisole: A consumer panel evaluation
Autor(a) principal: | |
---|---|
Data de Publicação: | 2006 |
Outros Autores: | , , |
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. |
id |
RCAP_0e3f52b76daf02e0aeb1550f15f5698a |
---|---|
oai_identifier_str |
oai:scielo:S0254-02232006000200001 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
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 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0254-02232006000200001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0254-02232006000200001 |
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) 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_ |
1799137248923353088 |