15种食用植物油脂肪酸的气相色谱-质谱分析

doi:10.7506/spkx1002-6630-201306047

食品科学 ›› 2013, Vol. 34 ›› Issue (6): 211-214.doi: 10.7506/spkx1002-6630-201306047

15种食用植物油脂肪酸的气相色谱-质谱分析

杨春英，刘学铭，陈智毅

广东省农业科学院蚕业与农产品加工研究所，广东省农产品加工公共实验室，广东广州 510610

收稿日期:2011-12-22 修回日期:2013-01-30 出版日期:2013-03-25 发布日期:2013-03-01
通讯作者: 杨春英 E-mail:ychying@163.com

Determination of Fatty Acid Profiles in Fifteen Kinds of Edible Vegetable Oil by Gas Chromatography-Mass Spectrometry

YANG Chun-ying，LIU Xue-ming，CHEN Zhi-yi

Sericulture & Agri-Food Research Institute, Guangdong Open Access Laboratory of Agricultural Product Processing,Guangdong Academy of Agricultural Sciences, Guangzhou 510610, China

Received:2011-12-22 Revised:2013-01-30 Online:2013-03-25 Published:2013-03-01
Contact: Chun-Ying YANG E-mail:ychying@163.com

摘要/Abstract

摘要： 建立了气相色谱-质谱联用法测定食用植物油中脂肪酸组成的方法。方法选用NaOH-甲醇溶液作为衍生试剂，色谱柱为极性毛细管柱，分流比为20:1，对15种常见植物油中的脂肪酸组成进行了分析，并用SPSS软件对植物油样品进行了系统聚类分析。结果表明，植物油中的脂肪酸组成以棕榈酸（C16:0）、硬脂酸（C18:0）、油酸（C18:1）和亚油酸（C18:2）为主；除椰子油外，其余14种植物油中不饱和脂肪酸含量均达75 %以上，大于饱和脂肪酸含量。

关键词: 脂肪酸, 植物油, 气相色谱-质谱联用

Abstract: A gas chromatography-mass spectrometry (GC-MS) method for rapid determination of fatty acids in vegetable oil was developed. The vegetable oil samples were derived by sodium hydroxide-methanol solution. The analysis was completed on a polar capillary column with split ratio of 20:1. The cluster analysis was applied for the classification of 15 vegetable oil samples through SPSS software. Results showed that major fatty acids were palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1) and linoleic acid (C18:2) and the content of unsaturated fatty acids in these edible oil samples was more than 75%, which was much higher than that of saturated fatty acids.

Key words: fatty acid profile, vegetable oil, gas chromatography-mass spectrometry (GC-MS)

中图分类号:

TS207.3

杨春英，刘学铭，陈智毅. 15种食用植物油脂肪酸的气相色谱-质谱分析[J]. 食品科学, 2013, 34(6): 211-214.

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15种食用植物油脂肪酸的气相色谱-质谱分析

Determination of Fatty Acid Profiles in Fifteen Kinds of Edible Vegetable Oil by Gas Chromatography-Mass Spectrometry

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