【摘要】 目的:通过分析六种新疆陆地棉棉籽脂肪酸成分与含量的变化,为更好的开发,利用丰富的棉籽资源提供实验数据。方法:采用索氏提取法提取了6种新疆陆地棉棉籽油,其棉籽脂肪酸经甲酯化后用气相色谱-质谱联用仪进行分析。结果:不同品种棉籽油所含脂肪酸成分基本相同,但各脂肪酸成分的相对含量差异较大,其中亚油酸含量变化范围为50.30%~57.25%,棕榈酸、油酸含量的变化范围分别为22.24%~30.98%和12.93%~16.84%。不同棉花品种棉籽的多不饱和脂肪酸(PUFA)与饱和脂肪酸(SFA)相对含量比值也不同,变化范围为1.66~2.59。结论:不同品种棉籽,其营养价值及经济价值存在较大差异,其中,新陆早27号棉籽具有相对更好的开发利用价值。更多还原

【Abstract】 Objective:The components and relative contents of six species of Xinjiang Upland cotton were analyzed to provide scientific basis for exploitation and utilization.Method: The cottonseed oil of six varieties of Xinjiang Upland Cotton was extracted by Soxhlet extraction,and the fatty acids they contained were analyzed by gas chromatography-mass spectrometry(GC-MS).Result:The results showed that different varieties of Upland Cotton have the similar composition but the different contents of fatty acids,the contents of 9,12-Octadecadienonic acidwere different from 50.30%～57.25%,and the Hexadecanoic acid,9-Octadecadienonic acid were 22.24%～30.98%,12.93%～16.84% respectively.In addition,the ratio of polyunsaturated fatty acids(PUFA) and saturated fatty acids(SFA) is also different for different varieties of cotton(1.66～2.59).Conclusion: The nutritional and application value for different varieties of Upland Cotton was different.Among them,the 27th Xinluzao cottonseed has a relatively higher value of utilization.更多还原