Triacylglycerol structure of an african peanut oil

摘要: Triacylglycerols were isolated from an African peanut oil, then fractionated by unsaturation into classes, and the triacylglycerol structure was determined on these classes using pancreatic lipase hydrolysis. Fatty acid analysis of monoacylglycerols and, in some cases, 1 or 2 diacylglycerols, allowed proportions 84 isomers to be calculated. The oil had a high oleic content (60.3%) contained nearly 25% trioleoylglycerol, major triacylglycerol. 4 most abundant together represented more than one-half total triacylglycerols. In 30 isomers, 2-position occupied linoleic acid, 39 acid. very long-chain saturated fatty acids (20:0, 22:0, 24:0) that formed 5.1% not found 2-position. each associated with molecules unsaturated placement acids, respectively, at 1,3-position relatively close l,3-random-2-random distribution, except for trioleoylglycerol (24.7% instead 21.7% random hypothe-sis).