Fungi and ochratoxin A detected in healthy grapes for wine production

Detalhes bibliográficos
Autor(a) principal: Serra, Rita
Data de Publicação: 2006
Outros Autores: Mendonça, Carla, Venâncio, Armando
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/3824
Resumo: Aims: The mycoflora of healthy grapes (i.e. without visible symptoms of rot) for wine production in Portuguese winemaking regions was assessed and its potential for ochratoxin A (OTA) production evaluated. The OTA content of grapes was also determined. Methods and Results: A total of 386 fungal strains were isolated by plating methods. The most frequent genera found in grapes were non-ochratoxigenic species: Cladosporium (28%), Penicillium (24%), Botrytis (13%) and Aspergillus (9%). Two OTA-producing strains were isolated, belonging to the species Aspergillus carbonarius and Aspergillus ochraceus. OTA was detected in three of four grape samples, up to 116 ng lֿ¹. Conclusions: OTA is being produced in healthy berries by Aspergillus species, namely A. carbonarius, at levels below the maximum recommended limit of 2000 ng lֿ¹ in wine. Significance and Impact of the Study: The OTA concentration detected in healthy Portuguese grapes does not represent a risk to wine regarding the legal limit established.
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spelling Fungi and ochratoxin A detected in healthy grapes for wine productionA. carbonariusAspergillusFungiGrapesMycotoxinsOchratoxin APenicilliumWineScience & TechnologyAims: The mycoflora of healthy grapes (i.e. without visible symptoms of rot) for wine production in Portuguese winemaking regions was assessed and its potential for ochratoxin A (OTA) production evaluated. The OTA content of grapes was also determined. Methods and Results: A total of 386 fungal strains were isolated by plating methods. The most frequent genera found in grapes were non-ochratoxigenic species: Cladosporium (28%), Penicillium (24%), Botrytis (13%) and Aspergillus (9%). Two OTA-producing strains were isolated, belonging to the species Aspergillus carbonarius and Aspergillus ochraceus. OTA was detected in three of four grape samples, up to 116 ng lֿ¹. Conclusions: OTA is being produced in healthy berries by Aspergillus species, namely A. carbonarius, at levels below the maximum recommended limit of 2000 ng lֿ¹ in wine. Significance and Impact of the Study: The OTA concentration detected in healthy Portuguese grapes does not represent a risk to wine regarding the legal limit established.EC, Quality of Life Program (QoL), Key Action 1 (KA1) on Food, Nutrition and Health; Fundação para a Ciência e a Tecnologia (FCT)Blackwell PublishingUniversidade do MinhoSerra, RitaMendonça, CarlaVenâncio, Armando20062006-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/3824eng"Letters in applied microbiology". ISSN 0266-8254. 42 (2006) 42-47.0266-825410.1111/j.1472-765X.2005.01805.x16411918info: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:RCAAP2023-07-21T11:59:06Zoai:repositorium.sdum.uminho.pt:1822/3824Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:48:50.858009Repositório 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 Fungi and ochratoxin A detected in healthy grapes for wine production
title Fungi and ochratoxin A detected in healthy grapes for wine production
spellingShingle Fungi and ochratoxin A detected in healthy grapes for wine production
Serra, Rita
A. carbonarius
Aspergillus
Fungi
Grapes
Mycotoxins
Ochratoxin A
Penicillium
Wine
Science & Technology
title_short Fungi and ochratoxin A detected in healthy grapes for wine production
title_full Fungi and ochratoxin A detected in healthy grapes for wine production
title_fullStr Fungi and ochratoxin A detected in healthy grapes for wine production
title_full_unstemmed Fungi and ochratoxin A detected in healthy grapes for wine production
title_sort Fungi and ochratoxin A detected in healthy grapes for wine production
author Serra, Rita
author_facet Serra, Rita
Mendonça, Carla
Venâncio, Armando
author_role author
author2 Mendonça, Carla
Venâncio, Armando
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Serra, Rita
Mendonça, Carla
Venâncio, Armando
dc.subject.por.fl_str_mv A. carbonarius
Aspergillus
Fungi
Grapes
Mycotoxins
Ochratoxin A
Penicillium
Wine
Science & Technology
topic A. carbonarius
Aspergillus
Fungi
Grapes
Mycotoxins
Ochratoxin A
Penicillium
Wine
Science & Technology
description Aims: The mycoflora of healthy grapes (i.e. without visible symptoms of rot) for wine production in Portuguese winemaking regions was assessed and its potential for ochratoxin A (OTA) production evaluated. The OTA content of grapes was also determined. Methods and Results: A total of 386 fungal strains were isolated by plating methods. The most frequent genera found in grapes were non-ochratoxigenic species: Cladosporium (28%), Penicillium (24%), Botrytis (13%) and Aspergillus (9%). Two OTA-producing strains were isolated, belonging to the species Aspergillus carbonarius and Aspergillus ochraceus. OTA was detected in three of four grape samples, up to 116 ng lֿ¹. Conclusions: OTA is being produced in healthy berries by Aspergillus species, namely A. carbonarius, at levels below the maximum recommended limit of 2000 ng lֿ¹ in wine. Significance and Impact of the Study: The OTA concentration detected in healthy Portuguese grapes does not represent a risk to wine regarding the legal limit established.
publishDate 2006
dc.date.none.fl_str_mv 2006
2006-01-01T00:00:00Z
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/1822/3824
url http://hdl.handle.net/1822/3824
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Letters in applied microbiology". ISSN 0266-8254. 42 (2006) 42-47.
0266-8254
10.1111/j.1472-765X.2005.01805.x
16411918
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
publisher.none.fl_str_mv Blackwell Publishing
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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