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  • Title: Neutral lipids, their fatty acids, and the sterols of the marine ciliated protozoon, Parauronema acutum.
    Author: Sul D, Kaneshiro ES, Jayasimhulu K, Erwin JA.
    Journal: J Eukaryot Microbiol; 2000; 47(4):373-8. PubMed ID: 11140451.
    Abstract:
    The neutral lipids and their fatty acids and the sterol fractions of the marine ciliated protozoon, Parauronema acutum, were characterized. The neutral lipids consisted of triglycerides (30%), sterols (29%), free fatty acids (24%), steryl esters (9%), and diglycerides (8%) and small amounts of fatty alcohols. The fatty acid profiles of these lipids were very similar although quantitative differences were detected. Saturated fatty acids, primarily 14:0, 16:0, and 18:0 constituted 20-30% of the total. Unsaturated fatty acids containing one to three double bonds, primarily 18:1(9), 18:2 (9,12), 18:3 (9, 12, 15) and 20:3 (11, 14, 17), constituted 35-50% of the total. Highly unsaturated fatty acids, 18:4 (6, 9, 12, 15), 20:5 (5, 8, 11, 14, 17) and 22:6 (4, 7, 10, 16, 19), constituted 16-25% of the total. The fatty alcohols consisted of 14:0 (2%), 16:0 (66%), 18:0 (3%), 20:0 (8%), and 22:0 (21%). The sterols of Parauronema acutum consisted of cholesterol (53%), campesterol (32%), desmosterol (7%), and beta-sitosterol (8%).
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