Fatty Chain Composition of Phospholipids from Muscle of Crayfish, Procambarus clarkii

概要

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The lipids of the crayfish muscle, composed simply of phospholipids (78%) and free sterols (20%), were analyzed precisely, since furan fatty acids (F acids) had previously been found in the neutral lipids from hepatopancreas of the animal. The analysis yielded the following findings. (i) The main phospholipids were choline phosphoglycerides (CPG, 40.3%) and ethanolamine phosphoglycerides (EPG, 16.6%). (ii) The fatty acid analysis of EPG and CPG (mixtures of diacyl and ether-containing phosphoglycerides) showed that the predominant acyl chains at the sn-1 position were 18 : 1 in EPG and 16 : 0 in CPG, and that acyl chains at the sn-2 position were rich in polyunsaturated fatty chains. (iii) F acids were detected at the sn-2 position of EPG. The profile of F acids in the total phospolipid fraction was the same as that in the case of the hepatopancreas. (iv) EPG and CPG contained significant amounts of ether-containing phosphoglycerides (40% and 45%, respectively). (v) In the ether-containing phosphoglycerides, 1-O-alkenyl and 1-O-alkyl chains were composed of saturated, monounsaturated, and branched chains. Acyl chains at the sn-2 position consisted of polyunsaturated chains for the most part and of phytanic chains in a small amount.
社団法人日本薬学会の論文
1989-06-25