Abstract
Tocopherol and tocotrienol contents in 18 oils extracted from the different rice varieties in different districts in Japan and in 5 commercial rice bran oils were determined by HPLC.
α-, β-, and γ-Tocopherols, and α- and γ-tocotrienols were identified. Extracted oils contained 4511, 370μg/g of tocopherols. Tocotrienol contents were about 57% of tocopherols. Tocopherol and tocotrienol contents in commercial oils were about 44% of extracted oils.
Tocopherol and tocotrienol contents varied with the same varieties in the different districts and the different varieties in the same districts.
Fluctuation of observed value in extracted oil was in the range of 5.410.5%.
