番茄红素油树脂中脂肪酸组成的分析

Analysis on the Content of Fatty Acids in Lycopene Oleoresin

番茄红素油树脂是以番茄皮渣为原料、以非极性溶剂为介质来进行抽提而得到的油溶性成分的混合物 ,其中除含有番茄红素外 ,还含有一定数量油脂及脂肪酸 ,维生素E、甾醇及磷脂等类脂性成分 .本研究通过对皂化后所得脂肪酸经AMP衍生化所产生衍生产物的GC/MS法 ,对其中的脂肪酸组成及其含量进行了分析 .结果表明 ,番茄红素油树脂中脂肪酸组成包括 14∶0 ,16∶0 ,18∶0 ,18∶1,18∶2 ,18∶3等几种 ,以饱和脂肪酸为主 ,约占脂肪酸总量的 75% ,而不饱和脂肪酸仅占2 5% ,并且所有脂肪酸的碳链均较短 .

Lycopene oleoresin is a mixture of some kinds of oil soluble compounds extracted from tomato puree using lipophilic solvents as a medium. It may contain many kinds of lipid such as fats and fatty acids, Vitamin E, sterol and phospholipid besides lycopene. The author analyzed the type and content of fatty acids in the lycopene oleoresin through the GC/MS of the AMP derivatives of them. The results show that the fatty acids in the lycopene oleoresin include 14∶0, 16∶0,18∶0,18∶1,18∶2,and 18∶3. The contents of saturated fatty acids and the unsaturated are about 75% and 25% respectively, and all of the fatty acids are no more than 18 C.