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气相色谱-质谱法分离鉴别溪黄草叶中的弱极性有机组分

作  者:
林恋竹;赵谋明
单  位:
华南理工大学轻工与食品学院
关键词:
气相色谱-质谱法(GC-MS);溪黄草叶;弱极性有机成分;抗氧化
摘  要:
利用气相色谱-质谱法分析石油醚相及乙酸乙酯相中弱极性有机组分是否含有与抗氧化性有关的化合物。通过制备溪黄草叶60%乙醇提取物,并采用溶剂分离法,从溪黄草叶提取物中分出4个组分:石油醚相、乙酸乙酯相、正丁醇相、水相。气相色谱-质谱法共鉴定出15种成分,其中大多数为高级脂肪酸,尤其以棕榈酸、亚麻酸甲酯含量最为丰富。虽从溪黄草叶石油醚相中鉴定出2,2'-亚甲基双-(4-甲基-6-叔丁基苯酚)(工业强抗氧化剂),但其含量很低。
译  名:
Gas Chromatography Mass Spectrometry Separation and Identification of Organic Weak Polar Components from Rabdosia serra (Maxim.) Hara Leaves
作  者:
LIN Lian-zhu, ZHAO Mou-ming* (College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China)
关键词:
gas chromatography-mass spectrometry (GC-MS);Rabdosia serra (Maxim.) Hara leaves;extract;weak polar components;antioxidant
摘  要:
Rabdosia serra (Maxim.) Hara leaves were extracted with 60% ethanol, and were further separated by solvent extraction into four fractions, i.e., petroleum ether fraction, ethyl acetate fraction, n-butanol fraction and water fraction. Components in petroleum ether and ethyl acetate fractions were analyzed by using gas chromatography-mass spectrometry. Totally 15 compounds were identified, and most of these compounds are higher fatty acids, especially n-hexadecanoic acid and 9,12,15-octadecatrienoic acid. Trace 2,2'-methylene bis(6-tert-butyl-4-methylphenol), a strong antioxidant, was found in the petroleum ether fraction.

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