The methods of HPLC determination of citrinin in red rice

The methods of HPLC determination of citrinin in red rice was studied in this paper. The drying temperature and solvent extraction are important for the citrinin contents of red rice. The results indicated that the amount of citrinin was reduced with the increase of drying temperature. When it was 50℃, the citrinin contents was the highest. Formic acid has proved to extract citrinin from red rice most effectively. The citrinin contents of red rice was alao closely related with culture time.