Abstract: Supercritical carbon dioxide extraction (SCDE) and isopropanol solvent extraction (ISE) were employed to extract millet bran oil. The fatty acid composition and the contents of sterol, vitamin E and phospholipid as well as the color change of the obtained samples were determined by gas chromatography and fluorescence spectrometry. The results showed that the content of linoleic acid in millet bran oil was even higher than other edible oils, which was up to 71.82%. The contents of unsaturated fatty acids and phospholipid in SCDE-derived millet bran oil exhibited a decrease by 0.11% and 99.60% respectively when compared with ISE-derived millet bran oil, but the contents of saturated fatty acids of C14－C22, vitamin E and sterol were higher than those of ISE, which were up to 0.93%, 20.64% and 34.82%, respectively. Moreover, SCDE-derived millet bran oil revealed a lighter color.

Key words: supercritical carbon dioxide, isopropanol, fatty acid, vitamin E, sterol content, phospholipid, color