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. 2010 Aug;2(8):1984-96.
doi: 10.3390/toxins2081984. Epub 2010 Aug 3.

Natural occurrence of ochratoxin A in musts, wines and grape vine fruits from grapes harvested in Argentina

María Lorena Ponsone  1 , María Laura Chiotta, Mariana Combina, Adriana Torres, Patricia Knass, Ana Dalcero, Sofía Chulze
Affiliations

Natural occurrence of ochratoxin A in musts, wines and grape vine fruits from grapes harvested in Argentina

María Lorena Ponsone et al. Toxins (Basel). 2010 Aug.

Abstract

In this study, ochratoxin A (OTA) occurrence in Argentinean musts, wines and dried vine fruits was evaluated, alongside with the performance of OchraStar(TM) columns for OTA extraction. In all the three matrices analyzed, the OchraStar(TM) columns showed good performance. The analysis of natural occurrence of OTA in the red must and the red wine samples showed low incidence with low levels of mean OTA contamination (0.12 ng/mL and 0.37 ng/mL, respectively), while 60% of the dried vine fruit samples were contaminated with OTA, in levels ranging from 0.26 to 20.28 ng/g.

Keywords: Argentina; Ochratoxin A; dried vine fruits; immunoaffinity columns; must; wines.

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Figures

Figure 1
Figure 1
Binding performance of anti-ochratoxin A antibodies used in the OchraStarTM immunoaffinity columns. Averages of duplicate measurements (± SD) are represented.
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