Occurrence of novel nonmethylene-interrupted C24 polyenoic fatty acids in female gonad lipids of the limpet Cellana grata.
The occurrence of positional isomers of minor C(24) 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 C(24) unsaturated fatty acids detected were present only in triacylglycerols.
Kawashima
Hideki
H
Bioscience Laboratory, Miyako College, Iwate Prefectural University, Japan. ajoe@iwate-pu.ac.jp
Ohnishi
Masao
M
D000818:Animals; D004952:Esters; D005231:Fatty Acids, Unsaturated / Q000032:analysis*; D005260:Female; D008401:Gas Chromatography-Mass Spectrometry; D049851:Gastropoda / Q000737:chemistry*; D006066:Gonads / Q000737:chemistry*; D008055:Lipids / Q000032:analysis*; D013237:Stereoisomerism; D014280:Triglycerides / Q000032:analysis
D004952:Esters; D005231:Fatty Acids, Unsaturated; D008055:Lipids; D014280:Triglycerides