A STUDY OF THE DISTRIBUTION OF EICOSAPENTAENOIC ACID AND DOCOSAHEXAENOIC ACID BETWEEN THE ALPHA AND BETA GLYCEROL CHAINS IN FISH OILS BY C-13-NMR SPECTROSCOPY

被引：36

作者：

GUNSTONE, FD

SETH, S

机构：

[1] School of Chemistry, University of St Andrews, St. Andrews

来源：

CHEMISTRY AND PHYSICS OF LIPIDS | 1994年 / 72卷 / 02期

关键词：

C-13-NMR SPECTRA; DHA; DOCOSAHEXAENOIC ACID; EPA; EICOSAPENTAENOIC ACID; FISH OILS; DISTRIBUTION BETWEEN ALPHA AND BETA CHAINS;

D O I：

10.1016/0009-3084(94)90095-7

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Using the C-13-NMR signals for the C1 and C2 carbon atoms it is possible to determine the proportion of EPA and of DHA in the alpha and beta chains of triacylglycerols. This has been applied to seven fish oils and to EPA/DHA enriched fractions obtained from four of these. The results show that these two important n-3 polyene acids are distributed differently in fish oil triacylglycerols. DHA is concentrated in the beta position (59-87%), but EPA is more randomly distributed between the alpha and beta chains. These results accord with those obtained for other fish oils by stereospecific gas chromatographic procedures.

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页码：119 / 126

页数：8

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