Gas chromatographic characterization of soapstocks from vegetable oil refining

被引：23

作者：

Dowd, MK ^{[1
]}

机构：

[1] USDA ARS, So Reg Res Ctr, New Orleans, LA 70124 USA

来源：

JOURNAL OF CHROMATOGRAPHY A | 1998年 / 816卷 / 02期

关键词：

vegetable oils; soapstock; fatty acids; polyalcohols; carbohydrates; sterols; glycerides; glycosides;

D O I：

10.1016/S0021-9673(98)00503-2

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Gas chromatography was used after trimethylsilyl derivatization to determine the composition of soapstocks from corn germ and peanut oil refining. Soap fatty acids, polyalcohols, small carbohydrates, sterols, steryl glycosides, mono-, di- and triglycerides were measured using a hexamethyldisilazane/pyridine preparation and a high-temperature capillary column. Additional peaks associated with the fatty acids appeared in the chromatograms when pyridine was incorporated into the sample preparation. Limiting the concentration of soapstock in the sample or replacing pyridine with a chlorinated solvent reduced the formation of these artifacts. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：185 / 193

页数：9

共 22 条

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