Abstract
A total of 119 wines, including 115 dry wines (77 red, 34 white, 4 rose) and 4 ice wines, were obtained from four major regions around China (east, northeast, west, and northwest) from 1999 to 2009. Ochratoxin A (OTA) was detected by solid-phase extraction and high-performance liquid chromatography with fluorescence detection. The OTA levels ranged from <0.1 to 5.65 μg/L. The wines from the northeast area had the highest OTA level, with an average concentration of 2.18 μg/L. Analysis of the correlation between meteorological parameters and the OTA concentration in red wine revealed that the OTA concentration was positively correlated with rainfall in August, but negatively correlated with the average temperature. No significant correlation was found with the daily range of temperature and relative humidity. The results show that climate factors affect the OTA distribution in wines from the four major regions of China.
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