Abstract
The composition of methyl esters of the fatty acids of the total and neutral lipids from the viscera, dark muscles, and brain of pelyads from the water bodies of the Ob basin have been studied by gas-liquid chromatography in comparison with the fatty acid composition of the total lipids of the light muscles. In all the lipids, 29 acids were detected and 27 were identified, six of which made up 75 to 79% of the total. It has been shown that the uniqueness of the total lipids of the viscera and dark muscles is due to a high content of eicosapentaenoic acid, while the brain lipids are distinguished by a high palmitic acid content. In the neutral lipids, regardless of their localization, the concentration of polyenes falls and the concentration of monoenes rises.
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