植物油中脂肪酸组成的GC-MS分析  

GC-MS Analysis of Composition of Fatty Acids in Plant Oils

作　　者：娄婷婷[1] 赵婷[1] 王伟[1] 林安清[1] 赵璟源 

机构地区：[1]天津出入境检验检疫局,天津300461

出　　处：《食品研究与开发》2014年第21期100-102,共3页Food Research and Development

摘　　要：建立几种常见植物油中脂肪酸组成的GC-MS分析方法。并对甲酯化条件进行了优化,甲酯化后待测液经离心过膜后,进入气相色谱-质谱进行测试。通过对谱图进行分析,得到各植物油中主要脂肪酸组成及含量。结果表明,所选几种植物油以16碳脂肪酸和18碳脂肪酸为主,不饱和脂肪酸含量较高,均超过总脂肪酸的70%,平行实验的最大允许偏差均小于10%,各脂肪酸含量均符合国家标准中对食用植物油脂肪酸组成的规定。A GC-MS detection method for detection of content of fatty acids in plant oils was established. After optimized the conditions of fatty acid methyl ester reaction, GC-MS was taken to determine the composition of fatty acid. The results indicated that large amount of unsaturated fatty acid was contained in the plant oils in the experiment, more than 70%of total fatty acid. The maximum allowable deviation was less than 10%in all the parallel experiments and the contents of fatty acids conform to national standards.

关 键 词：脂肪酸组成 GC—MS 植物油 

分 类 号：TS227[轻工技术与工程—粮食、油脂及植物蛋白工程] O657.63[轻工技术与工程—食品科学与工程]