Abstract
Wine contaminated with ochratoxin A (OTA) has been reported all over the world. Sixty-eight wine samples were analysed to assess OTA wine contamination in various regions of Argentina and Chile. In addition, some imported wines were analysed. Wine samples were collected at manufacturers' stock and retail markets in Argentina in 2003 and Chile in 2002. A high- performance liquid chromatographic method with fluorescence detection and two different immunoaffinity clean-up columns were employed, with recoveries higher than 90% (Argentina: LOD:0.008 µg/l, LOQ:0.015 µg/l; Chile: LOD:0.012 µg/l, LOQ: 0.04 µg/l). None of the analysed wines produced in Argentina or Chile were contaminated. The presence of OTA in wines would appear to be a lesser problem in Argentina and Chile than in other countries, but it still could contribute to OTA exposure of human populations and more studies of the occurrence of OTA in wine should be done.
Highlights
Ochratoxin A (OTA) is a mycotoxin produced by some species of the genera Aspergillus and Penicillium, and can contaminate a wide variety of foods.[1,2] According to the Joint FAO/WHO Expert Committee on Food Additives (JECFA),[3] OTA is produced by a single Penicillium species, P. verrucosum, by Aspergillus ochraceus and several related Aspergillus species, and byA. carbonarius, with small percentage of isolates of the closely related A. niger
None of the red wines produced in Argentina or Chile analysed by us presented contamination
The number of imported wine samples analysed was limited, our results showed that OTA contaminations in European red wines was in the range of the SCOOP study.[20]
Summary
Ochratoxin A (OTA) is a mycotoxin produced by some species of the genera Aspergillus and Penicillium, and can contaminate a wide variety of foods.[1,2] According to the Joint FAO/WHO Expert Committee on Food Additives (JECFA),[3] OTA is produced by a single Penicillium species, P. verrucosum, by Aspergillus ochraceus and several related Aspergillus species, and byA. carbonarius, with small percentage of isolates of the closely related A. niger. Wine contamination with OTA has been reported all over the world.[3,5,6,7,8,9,10,11,12,13,14,15] no similar study has been performed on Argentinian and Chilean wines.
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