Abstract
The hepatopancreas and muscle of the prawn, Penaeus japonicus, were analyzed as to the phospholipid fatty acid composition. The most important lipids in the hepatopancreas are triglycerides and phospholipids, while the lipids in muscle are principally phospholipids and free cholesterol. Fatty acids such as palmitic (16:0), stearic (18:0), oleic (18:1 n-9), eicosapentaenoic (20:5 n-3), and docosahexaenoic (22:6 n-3) were prominent in the total phospholipid fatty acid composition. However, phosphatidylethanolamine appeared to be particularly rich in n-3 polyunsaturated fatty acids, sphingomyelin in saturated fatty acids (mainly 18:0), and phosphatidylinositol in monounsaturated fatty acids (mainly 18:1 n-9). Our data indicated that each phospholipid class is characterized by a specific paraffin chain composition.
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