Crude oil and oryzanolum content in rice bran among three kinds of color rice

Thirty-four color rice varieties' brown rice were selected to study the content of five kinds of fatty acids (FA) and oryzanolum in the rice bran crude oil. The difference of nutrient quality among three kinds of color rice varieties and the variant tendency was compared. The result showed that lipid content and linoleic acid (LA) proportion in the fatty acid of black rice bran were significantly higher than that of red rice bran, but there were no significant difference between white rice bran and red rice bran. No significant difference in the unsaturated fatty acid among three color rice bran, Oryzanolum content of black rice bran was significantly higher than that in red rice bran and white rice bran,and there were no significant differences in those of white rice bran and red rice bran. The Chongyangnuo variety had the highest unsaturated fatty acid proportion in rice bran. The oryzanolum content in the JHZZ variety (white rice) and black rice varieties were higher than those in the others, and the character in the early and the late season in Fuzhou was steady;when the same variety cultivated in the same locality, the content of lipid grown in the late season (from July to November) was higher than that in the early season (from March to July), and the content of the oryzanolum and linoleic acid proportion was lower than that in the early season.