Identification of n-6 Monounsaturated Fatty Acids in Acer Seed Oils

文献类型： 外文期刊

第一作者： Sun, Jin-Yue

作者： Sun, Jin-Yue;Wang, Xin-Kun;Smith, Mark A.

作者机构：

关键词： Acer;Seed oil;sn-2 MAG;Very-long-chain fatty acids;n-6 monounsaturated fatty acids;Gamma-linolenic acid;Nervonic acid

期刊名称：JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY （ 影响因子：1.849； 五年影响因子：2.299 ）

ISSN： 0003-021X

年卷期： 2018 年 95 卷 1 期

页码：

收录情况： SCI

摘要： Seed oils from Acer species are a potential source of the nutraceutical fatty acids, nervonic acid (cis-15-tetracosenoic acid, NA), and -linolenic acid (cis-6,9,12-octadecatrienoic acid, GLA). To further characterize the genus, seed fatty acid content and composition were determined for 20 species of Acer. Fatty acid content ranged from 8.2% for Acer macrophyllum to over 36% for A. mono and A. negundo. The presence of very-long-chain fatty acids (VLCFA), with chain length of 20-carbons or greater, and GLA were characteristic features of the seed oils. In all species, erucic acid (cis-13-docosenoic acid, EA) was the predominant VLCFA with the highest level of NA being only 8.6% in A. olivianum. Regioselective lipase digestion demonstrated that VLCFA are largely absent from the sn-2 position of seed triacylglycerol, whereas GLA is primarily located at this position. Five Acer species contained low levels (<2%) of cis-12-octadecenoic acid and cis-14-eicosenoic acid, uncommon n-6 fatty acids not previously reported from Acer.

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