In liaoning province in three kinds of corn as raw material,soxhlet extraction method to extract three corn oil,on three kinds of corn oil methyl ester,by gas chromatography-mass spectrometry instrument are analyzed. Three kinds of corn oil production rate is respectively: 4. 85% yellow corn,white corn,black corn,3. 25%to 11. 7%. Analysis results show that the yellow corn identified 9 kinds of fatty acid in fatty oil,accounting for93. 97% of the yellow corn fatty oil,unsaturated fatty acids accounted for 72...