Abstract
Total 7933 wheat, barley and rye samples collected from major cultivation areas in Japan were examined for deoxynivalenol (DON) contamination in 2002 - 2006. From about a half of these samples, more than 0.05 mg/kg of DON was detected. More than 1.1 mg/kg of DON, which is the provisional limit regulated by the Ministry of Health, Labour and Welfare in Japan was detected from 7.8 % of the samples in 2002, 4.0 % of the samples in 2003, 2.5 % of the samples in 2004, 0.2 % of the samples in 2005 and 2.8 % of the samples in 2006.
