不同玉米中脂肪酸成分的比较分析

Different components of fatty acids in different corn comparative analysis

以辽宁地区3种玉米为原料,采用索氏提取的方法提取3种玉米油,对3种玉米油进行甲酯化处理,以气相色谱-质谱联用仪进行了分析.3种玉米油的产率分别为:黄玉米4.85%、白玉米3.25%、黑玉米6.7%.分析结果表明,黄玉米脂肪油中鉴定出9种脂肪酸,占黄玉米脂肪油的93.97%,其中不饱和脂肪酸占72.56%;黑玉米脂肪油中鉴定出7种脂肪酸,占黑玉米脂肪油的89.78%,其中不饱和脂肪酸占80.56%;白玉米脂肪油中鉴定出6种脂肪酸,占白玉米脂肪油的76.34%,其中不饱和脂肪酸占62.61%.

In liaoning province in three kinds of corn as raw material,soxhlet extraction method to extract three corn oil,on three kinds of corn oil methyl ester,by gas chromatography-mass spectrometry instrument are analyzed. Three kinds of corn oil production rate is respectively： 4. 85% yellow corn,white corn,black corn,3. 25%to 11. 7%. Analysis results show that the yellow corn identified 9 kinds of fatty acid in fatty oil,accounting for93. 97% of the yellow corn fatty oil,unsaturated fatty acids accounted for 72. 56%; Black corn identified seven kinds of fatty acids in the fatty oil,89. 78% of black corn fatty oil,unsaturated fatty acids accounted for 80. 56%;White corn identified 6 kinds of fatty acid in fatty oil,76. 34% of fat white corn oil,unsaturated fatty acids accounted for 62. 61%.