云南栽培的西蒙得木种子蜡的化学成分

CHEMICAL COMPOSITION OF JOJOBA OIL INTRODUCED BY YUNNAN

西蒙得木(Simmondsia chinensis)为重要油脂植物。我所引种栽培的西蒙得木种子蜡(液体蜡)经化学处理后,用GC及GC/MS分析,化学成分与原产地一致。我们采用“远端基团修饰法”确定了未见前人报道的脂肪酸的双键位置。分析结果,西蒙得木液体蜡的脂肪酸部分,其主要成分(％):十六碳烯-7-酸0.07—0.10,十八碳烯-9-酸3.73—5.92,二十碳烯-11-酸37.59—38.83,二十二碳烯-13-酸7.09—9.27,二十四碳烯-15-酸0.62—1.11。脂肪醇部分主要成分(％):十八碳烯醇0.21—0.24,二十碳烯醇16.15—22.07,二十二碳烯醇19.93—23.09,二十四碳烯醇2.96—4.96。

After chemical treatment of Jojoba oil, analyses of GC and GC/MS were made for determining the composition of the oil. The result shows no difference from that reported by Thomas K Miwa. Double bond positions of the fatty acids have been elaborated by means of 'remote functional group modification' . The Jojoba oil contains mainly the following percentages of fatty acids and fatty alcohol,Fatty acids(%).Hexadec-7C-enoic 0.07-0.1,Octadec-9C-enoic 3.73-5.92, Eicos-llC-enoic 37.09-38.83, Docos-13C-enoic 7.09-9.29, Tetracos-15C-enoic 0.62-l.ll; Fatty alcohol(%): Octadecenoic alcohol 0.21-0.24, Eicosenoic alcohol 16.15-22.07, Docosenoic alcohol 19.93-23.09, Tetracosenoic alcohol 2.96-4.96.