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TitleAssessing the degradation of ochratoxin a using a bioassay: the case of contaminated winery wastewater
Author(s)Nogueira, R.
Estevinho, I.
Abrunhosa, Luís
Mendonça, Carla
Machado, Patrícia
Carballa, M.
Brito, A. G.
Venâncio, Armando
KeywordsActivated sludge
Ochratoxin A
Winery wastewater
Issue date2007
PublisherIWA Publishing
JournalWater Science & Technology
Citation"Water Science & Technology". iSSN 0273-1223. 56:2 (2007) 55-61.
Abstract(s)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.
TypeConference paper
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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