| Unusual fatty acid isomers of triacylglycerols and polar lipids in female limpet gonads of Cellana grata. | |
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MedLine Citation:
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PMID: 18458974 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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To investigate the occurrence of positional isomers of unsaturated fatty acids (FA) in triacylglycerols (TAG) and polar lipids (PL) in the female gonads of a dominant limpet, Cellana grata, fatty acid methyl esters (FAME) were fractionated according to the degree of their unsaturation by argentation thin-layer chromatography. Their structures were elucidated by gas chromatography-mass spectrometry of a combination of their FAME and picolinyl esters. A total of 125 different FA ranging from 12 to 24 carbon atoms were identified, and 105 unsaturated FA, including 34 nonmethylene-interrupted FA as minor components, were recognized. Although the major FA 16:0 and 18:1n-7, which accounted for more than 20 and 10%, respectively, of total FA, were present in TAG and PL, higher amounts of 20:4n-6 and 20:5n-3 were present in PL. Unsaturated FA consisting of more than five different positional isomers were 17:1, 19:1, 18:2, 19:2, 20:2, 21:2, 22:2, 20:3, and 22:3, most of which were present in TAG. Furthermore, a larger variety of nonmethylene-interrupted FA was found in TAG than in PL. This limpet gonad had a diverse assortment of unsaturated FA that comprised a wide range of unusual positional isomers with one to five double bonds. |
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Authors:
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Hideki Kawashima; Masao Ohnishi; Satoshi Ogawa; Kenji Matsui |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2008-05-06 |
Journal Detail:
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Title: Lipids Volume: 43 ISSN: 0024-4201 ISO Abbreviation: Lipids Publication Date: 2008 Jun |
Date Detail:
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Created Date: 2008-05-23 Completed Date: 2008-09-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0060450 Medline TA: Lipids Country: United States |
Other Details:
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Languages: eng Pagination: 559-67 Citation Subset: IM |
Affiliation:
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Bioscience Laboratory, Miyako College, Iwate Prefectural University, Miyako 027-0039, Japan. ajoe@iwate-pu.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Catalysis Fatty Acids / chemistry* Female Gas Chromatography-Mass Spectrometry Gonads / chemistry* Isomerism Lipids / chemistry* Mollusca Triglycerides / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Fatty Acids; 0/Lipids; 0/Triglycerides |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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