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The lipid compositions of corns produced in Korea were analyzed. Free and bound lipids of the corn kernels were fractionated, quantitated and compared by silicic acid column, thin layer arid gas liquid chromatography. Corn kernels contained 5.02% total lipids, which is consisted of 4.09% free lipids and 0.93% bound lipids. Free lipids comprised of 89.61% neutral lipids, 3.75% glycolipids and 6.40% phosp holipids, while bound lipids contained 14.26% neutral lipids, 46.06% glycolipids and 37.18% phospholipids. In the neutral lipids of free lipids, triglycerides were predominant (67.68%) and minor components such as esterified sterols, free sterols, free fatty acids, 1, 3-diglycerides, 1, 2-diglycerides were present. But in the neutral lipids of bound lipids, esterified sterols were not present and the contents of triglycerides were lower(47.68%) and free fatty acids were higher than those of free lipids. Among the phospholipids in free and bound lipids, phosphatidyl choline and phosphatidyl serines and phosphafidyl inositols were also present as minor components. The major fatty acids in the three lipid classes were linoleic, oleic and palmitic acids.
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