Journal
LIPIDS
Volume 47, Issue 8, Pages 827-833Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11745-012-3692-z
Keywords
Archaeogastropods; Gonad; Non-methylene-interrupted fatty acid; Odd-chain fatty acid
Funding
- Atmosphere and Ocean Research Institute, The University of Tokyo [118]
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To investigate unusual odd-chain fatty acids (FA) from gonads of archaeogastropods, limpets Cellana grata and Cellana toreuma, a subfraction enriched in FA with two double bonds extracted from the gonads was obtained by using argentation thin-layer chromatography. The resulting fraction was analyzed by using capillary gas chromatography-mass spectrometry of its methyl esters, 3-pyridylcarbinol esters and pyrrolidide derivatives. Six novel all-cis diene isomers were identified as 7,18-heneicosadienoic (21:2 Delta 7,18), 8,14-tricosadienoic (23:2 Delta 8,14), 9,15-tricosadienoic (23:2 Delta 9,15), 7,18-tricosadienoic (23:2 Delta 7,18), 9,18-tricosadienoic (23:2 Delta 9,18), and 9,20-tricosadienoic (23:2 Delta 9,20) acids. In the present study, the differences in the proportion of tricosadienoic acid isomers between the ovary lipids of C. grata and C. toreuma were recognized.
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