2006 Volume 70 Issue 10 Pages 2575-2578
The occurrence of positional isomers of minor C24 unsaturated fatty acids in female gonad lipids of the limpet Cellana grata was clarified by gas chromatography–mass spectrometry of the combination of their 4,4-dimethyloxazoline and picolinyl ester derivatives. In this study, in addition to 5,9-24:2, 9,15-24:2, 5,9,15-24:3, and 5,9,17-24:3, previously identified, 24:4n-6, 24:5n-3, and four novel nonmethylene-interrupted fatty acids, 9,17-24:2, 9,15,18-24:3, 5,9,15,18-24:4, and 5,9,15,18,21-24:5, were newly recognized. All C24 unsaturated fatty acids detected were present only in triacylglycerols.
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