Contamination of staple cereals with deoxynivalenol and nivalenol in Japan

Abstract

The provisional regulation level for deoxynivalenol in wheat is 1.1mg/kg in Japan. However, the regulation level for nivalenol and the occurrence of trichothecenes in rice still remain as matters to be settled. In this paper, we described a risk assessment for daily exposure of trichothecene mycotoxin based on the data obtained for wheat and rice harvested in 2002. By empoloying the weighted mean of trichothecene contamination levels, the trichothecenes risk in Japan was evaluated. The tolerable daily intake of the trichothecenes in Japanese dietary intake was also described.