Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater

Bibliographic Details
Main Author: Nogueira, R.
Publication Date: 2007
Other Authors: Estevinho, I., Abrunhosa, Luís, Mendonça, Carla, Machado, Patrícia, Carballa, M., Brito, A. G., Venâncio, Armando
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/1822/7077
Summary: In vineyards the presence of certain fungi may lead to the production of the mycotoxin ochratoxin A (OTA) and subsequent contamination of grapes and wine. Furthermore, winery wastewaters contaminated with OTA may represent an environmental hazard. Therefore, it is imperative to assess the fate of this mycotoxin in conventional wastewater treatment systems. The aim of the present work was to assess the biological degradation of OTA. Experimental work was carried out in batch experiments with initial OTA to biomass concentration ratios of 1.4 mgmg-1, 7.4mgmg-1 and, 11.9 mgmg-1. The assays were inoculated with activated sludge biomass unadapted to the substance under examination. The proposed bioassay demonstrates that OTA concentrations up to 100 mgL -1can be degraded by microbial activity in activated sludge.
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spelling Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewaterActivated sludgeBioassayBiodegradabilityOchratoxin AOECDWinery wastewaterScience & TechnologyIn vineyards the presence of certain fungi may lead to the production of the mycotoxin ochratoxin A (OTA) and subsequent contamination of grapes and wine. Furthermore, winery wastewaters contaminated with OTA may represent an environmental hazard. Therefore, it is imperative to assess the fate of this mycotoxin in conventional wastewater treatment systems. The aim of the present work was to assess the biological degradation of OTA. Experimental work was carried out in batch experiments with initial OTA to biomass concentration ratios of 1.4 mgmg-1, 7.4mgmg-1 and, 11.9 mgmg-1. The assays were inoculated with activated sludge biomass unadapted to the substance under examination. The proposed bioassay demonstrates that OTA concentrations up to 100 mgL -1can be degraded by microbial activity in activated sludge.Fundação para a Ciência e a Tecnologia (FCT)IWA PublishingUniversidade do MinhoNogueira, R.Estevinho, I.Abrunhosa, LuísMendonça, CarlaMachado, PatríciaCarballa, M.Brito, A. G.Venâncio, Armando20072007-01-01T00:00:00Zconference paperinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/7077eng"Water Science & Technology". iSSN 0273-1223. 56:2 (2007) 55-61.18433960090273-122310.2166/wst.2007.47217849978info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-11T04:56:27Zoai:repositorium.sdum.uminho.pt:1822/7077Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T15:03:29.037115Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater
title Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater
spellingShingle Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater
Nogueira, R.
Activated sludge
Bioassay
Biodegradability
Ochratoxin A
OECD
Winery wastewater
Science & Technology
title_short Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater
title_full Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater
title_fullStr Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater
title_full_unstemmed Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater
title_sort Assessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater
author Nogueira, R.
author_facet Nogueira, R.
Estevinho, I.
Abrunhosa, Luís
Mendonça, Carla
Machado, Patrícia
Carballa, M.
Brito, A. G.
Venâncio, Armando
author_role author
author2 Estevinho, I.
Abrunhosa, Luís
Mendonça, Carla
Machado, Patrícia
Carballa, M.
Brito, A. G.
Venâncio, Armando
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Nogueira, R.
Estevinho, I.
Abrunhosa, Luís
Mendonça, Carla
Machado, Patrícia
Carballa, M.
Brito, A. G.
Venâncio, Armando
dc.subject.por.fl_str_mv Activated sludge
Bioassay
Biodegradability
Ochratoxin A
OECD
Winery wastewater
Science & Technology
topic Activated sludge
Bioassay
Biodegradability
Ochratoxin A
OECD
Winery wastewater
Science & Technology
description In vineyards the presence of certain fungi may lead to the production of the mycotoxin ochratoxin A (OTA) and subsequent contamination of grapes and wine. Furthermore, winery wastewaters contaminated with OTA may represent an environmental hazard. Therefore, it is imperative to assess the fate of this mycotoxin in conventional wastewater treatment systems. The aim of the present work was to assess the biological degradation of OTA. Experimental work was carried out in batch experiments with initial OTA to biomass concentration ratios of 1.4 mgmg-1, 7.4mgmg-1 and, 11.9 mgmg-1. The assays were inoculated with activated sludge biomass unadapted to the substance under examination. The proposed bioassay demonstrates that OTA concentrations up to 100 mgL -1can be degraded by microbial activity in activated sludge.
publishDate 2007
dc.date.none.fl_str_mv 2007
2007-01-01T00:00:00Z
dc.type.driver.fl_str_mv conference paper
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/7077
url http://hdl.handle.net/1822/7077
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Water Science & Technology". iSSN 0273-1223. 56:2 (2007) 55-61.
1843396009
0273-1223
10.2166/wst.2007.472
17849978
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 IWA Publishing
publisher.none.fl_str_mv IWA Publishing
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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