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  • Title: Detection of ochratoxin A in tropical wine and grape juice from Brazil.
    Author: Terra MF, Prado G, Pereira GE, Ematné HJ, Batista LR.
    Journal: J Sci Food Agric; 2013 Mar 15; 93(4):890-4. PubMed ID: 22836915.
    Abstract:
    BACKGROUND: Ochratoxin A (OTA) is the main mycotoxin found in grapes, wines and grape juices and is considered one of the most harmful contaminants to human health. In this study, samples of tropical wines and grape juices from different grape varieties grown in Brazil were analysed for their OTA content by high-performance liquid chromatography. RESULTS: The detection and quantification limits for OTA were 0.01 and 0.03 µg L(-1) respectively. OTA was detected in 13 (38.24%) of the samples analysed, with concentrations ranging from < 0.03 to 0.62 µg L(-1). OTA was not detected in any of the grape juice samples. Most of the red wine samples proved to be contaminated with OTA (75%), while only one white wine sample was contaminated. However, the OTA levels detected in all samples were well below the maximum tolerable limit (2 µg L(-1)) in wine and grape juice established by the European Community and Brazilian legislature. CONCLUSION: The results of this study indicate a low risk of exposure to OTA by consumption of tropical wines and grape juices from Brazil.
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