Lipid Profiles of Turtle (Aspideretes gangeticus) Organs

概要

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Total lipid was extracted from four organs of the turtle Aspidertes gangeticus namely liver, muscle, eye and brain. Lipids like phospholipid and cholesterol were estimated in the total lipids. Fatty acid compositions of the total lipids were also determined. A. gangeticus liver shows a much higher content of total lipid (11.2%) than in muscle (0.5%). Phospholipid content is more in brain (6.5%) and muscle (7.2%) than in liver (2.4%) and eye (1.5%). Cholesterol occurs in brain (12.6%), eye (7.6%) and muscle (6.1%). The phospholipid and cholesterol ratio is maximum in muscle (1.1), gradually lowering in liver (0.8), brain (0.5) and eye (0.2) in the proportions indicated. In turtle all the organs studied are rich in palmitic (C16:0) and stearic (C18:0) acids. The amount of saturated fatty acid is more or less in equal proportion in the organs like eye (36.7%) and liver (37.9%). Turtle muscle and liver are more rich in polyunsaturated fatty acids in comparison with the other organs. Liver is enriched in the monoenoic C18:1 acid (38.2%) that is relatively much less in brain (16.9%), eye (16.6%) and muscle (15.6%), respectively. Eicosapentaenoic acid (C20:5) is especially high in Aspideretes eye (12.9%). Arachidonic acid (C20:4) is present in all the tissues studied.
日本油化学会の論文
2004-02-01