Ochratoxin A in wines, musts and grape juices from Spain

• Published in: Journal of the science of food and agriculture Vol. 84; no. 6; pp. 591 - 594
• Main Authors: Bellí, Neus, Marín, Sonia, Duaigües, Araceli, Ramos, Antonio J, Sanchis, Vicente
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 30-04-2004; Wiley; John Wiley and Sons, Limited
• Subjects: Beverages; Biological and medical sciences; Citrus fruits; Fermented food industries; Food industries; Fundamental and applied biological sciences. Psychology; grape beverages; HPLC; immunoaffinity columns; ochratoxin A; Spain; wine; Wines; Wines and vinegars; Europe; Spain; Wine; Alcoholic beverage; Toxin; Ochratoxin; ochratoxin A; Mycotoxin; grape beverages; immunoaffinity columns; Grape must; HPLC; Spain
• ISSN: 0022-5142; 1097-0010
• DOI: 10.1002/jsfa.1702

A survey on the occurrence of ochratoxin A (OTA) in 240 grape‐based beverages was carried out. Red and white wines from four different Spanish Designations of Origin (n = 160), musts (n = 20), grape juices (n = 10), ordinary wines (n = 20), special wines (Malaga, muscatel, sherry, vermouth, etc) (n = 20) and sparkling wines (n = 10) were assayed for OTA content using immunoaffinity column clean‐up and high‐performance liquid chromatography with fluorimetric detection (detection limit 0.05 µg l−1). Forty‐three (17.9%) of the samples tested contained detectable levels of OTA. The overall mean OTA concentration in red and white wines of Designations of Origin was 0.30 and 0.18 µg l−1 respectively (ranges 0.05–3.19 and 0.05–1.13 µg l−1 respectively). The percentage of wine samples with detectable amounts of OTA was higher for red (18.3%) than for white (10%) wines. OTA was also found in two of 10 red ordinary wines (0.68 and 4.24 µg l−1), whereas none of 10 white ordinary wines contained OTA. The mean OTA amount detected in sparkling wines was 0.44 µg l−1 (range 0.14–0.71 µg l−1). Two of 20 must samples contained OTA at low levels (0.08 and 0.18 µg l−1), while none of 10 grape juice samples contained OTA. Highest amounts of OTA were found in special wines (45%), with a maximum of 15.25 µg l−1 in a muscatel sample. Copyright © 2004 Society of Chemical Industry