Components of Sesame Seed Oil Precipitate

Abstract

Analysis was made of the precipitate formed during the settling of crude sesame seed oil. It was found mainly to consist of dicarboxylic acid (DA, 78%), sterylglycoside (SG, 7%), and non-lipid (7%). About 92% of DA was octacosanedioic acid and four other DA with different carbon numbers. DA and SG content in crude oil was about 0.5% and 700 ppm, respectively.
DA and SG were removed for the most sort from the crude oil as the precipitate.