| Abstract: | The composition of octopus (Octopus vulgaris) phospholipids was determined by analysis of hydrolytic breakdown products and by chromatography on silicic acid. The most remarkable feature of octopus phospholipids was the high content (13%) of ceramide aminoethylphosphonic acid. In addition the phospholipids contained phosphatidylcholine (42%), phosphatidylethanolamine (30%), phosphatidylserine (5%), phosphatidylinositol (4%) and sphingomyelin (3%). The fatty acid distribution of the phospholipids and the non-phosphorylated lipids was determined by gas chromatography. The major saturated fatty acids in the phospholipids and non-phosphorylated lipids were 16:0 (24 and 23%, respectively) and 18:0 (10 and 15%, respectively). The major highly unsaturated fatty acids in phospholipids and non-phosphorylated lipids were 20:5 (18 and 7%, respectively) and 22:6 (23 and 9% respectively). |
