对宁夏固原种植的小茴香籽油用正己烷进行了回流提取 ,萃取物经皂化和甲酯化反应处理后 ,利用气相色谱 质谱 (GC MS)进行分析 ,鉴定了产物中的脂肪酸组分 .结果表明 ,17种脂肪酸中 ,含量最高的是十八碳烯 5 酸(78.5 6 2 % ) ,其次是十八碳二烯酸 (8.35 2 % )、棕榈酸 (7.2 5 9% )和硬脂酸 (2 .10 3% ) . The cumin seed oil planted in Guyuan of Ningxia was extracted with n-hexane by refluxing, and the extracts were analyzed by gas chromatography-mass spectrometry (GC-MS) after saponification and methyl esterification, and the fatty acid components in the product were identified. The highest content of 17 fatty acids was octadecene 5 acid (78.5 6 2%), followed by octadecadienoic acid (8.35 2%), palmitic acid (7.2 5 9%) and stearic acid (2.10 3%).