银杏外果皮挥发油的化学组成及其抗氧化活性研究  

Chemical Composition of the Essential Oil from Sarcotesta of Ginkgo biloba and Its Antioxidative Activity

作　　者：涂小曼 刘茂林 张烁 谢光波[1] TU Xiao-man;LIU Mao-lin;ZHANG Shuo(School of Life Science and Technology,University of Electronic Science and Technology of China,Chengdu,Sichuan 610054)

机构地区：[1]电子科技大学生命科学与技术学院,四川成都610054

出　　处：《安徽农业科学》2018年第34期145-147,共3页Journal of Anhui Agricultural Sciences

基　　金：中央高校基本科研业务费(ZYGX2016J120)

摘　　要：[目的]分析银杏外果皮中挥发油的化学成分组成并评价其体外抗氧化活性。[方法]采用溶剂冷浸法提取银杏外果皮中的挥发油,用气相色谱-质谱(GC-MS)联用技术分析挥发油化学组成,通过检测挥发油对DPPH和ABTS自由基的清除能力进行体外抗氧化活性的评价。[结果]从银杏外果皮挥发油中共鉴定出7种化合物,占挥发油总量的85.46%,其主要成分为酚类衍生物(75.98%)。挥发油的体外抗氧化活性检测显示,该挥发油对DPPH和ABTS自由基的半数清除浓度分别为4.23和2.36 mg/m L。[结论]银杏外果皮挥发油具有一定的体外抗氧化活性,该研究可为银杏外果皮的综合利用提供依据。[Objective]To analyze the chemical composition and evaluate the antioxidative activity of essential oil from sarcotesta of Ginkgo biloba.[Method]The essential oil was obtained by solvent extraction,and its chemical composition was analyzed by GC-MS.Antioxidative activity of the essential oil was evaluated by scavenging effect against DPPH and ABTS free radical.[Results]7compounds were identified,making up85.46%of the total contents,with predominance of phenol derivatives(75.98%).The IC50for scavenging effect of essential oil aganist DPPH and ABTS free radical were4.23and2.36mg/mL,respectively.[Conclusion]The essential oil from sarcotesta of G.biloba exhibits moderate antioxidative activity,and these results can provide basis for comprehensive utilization of the sarcotesta of G.biloba.

关 键 词：银杏 外果皮 挥发油 气相色谱-质谱联用 抗氧化 

分 类 号：R284.1[医药卫生—中药学]