LARGE-SCALE PREPARATION OF LINOLEIC ACID-D2-ENRICHED TRIGLYCERIDES FROM CREPIS-ALPINA SEED OIL

被引：10
|
作者：
ADLOF, RO
EMKEN, EA
机构：
[1] USDA, ARS, Food Quality and Safety Research Unit, Peoria, 61604, Illinois
来源：
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 1993年 / 70卷 / 08期
关键词：
ACETYLENIC FATTY ACIDS AND ESTERS; C18 FATTY ACIDS AND DERIVATIVES; CREPIS OIL SEEDS AND CREPENYNIC ACID; DEUTERIUM AND DEUTERATION; LINOLEIC ACID AND ESTERS;
D O I：
10.1007/BF02542609
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Catalytic deuteration of Crepis alpina seed oil provided a convenient one-step method for the direct synthesis of large quantities of triglycerides enriched with deuterium-labelled linoleic acid. Crepis alpina seed (19 kg) was crushed, and the oil [74% crepenynic acid (cis-9-octadecen-12-ynoic acid)] was extracted with hexane. After purification by column chromatography (silica gel), > 170-g batches of oil were deuterated with Lindlar catalyst and deuterium (D2) gas. Purification (silica gel) resulted in > 150-g samples of triglyceride containing 74% cis-9, cis-12-octadecadienoic acid-12,13-d2 (18:2-d2) and 14% unlabelled linoleic acid. Pure (> 99%) tricrepenynin was recovered by further fractionation of the Crepis alpina triglycerides on silica gel. Deuteration of this sample produced deuterium-labelled trilinolein containing linoleic acid-d2 of > 98% isotopic purity.
引用
收藏
页码：817 / 819
页数：3
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