银杏叶活性成分萃取工艺的研究  

Study of the Leaching Technology of Flavonoids from Ginkgo Biloba Leaves

作　　者：韩玉谦[1] 隋晓[2] 

机构地区：[1]青岛海洋大学国家海洋药物工程技术研究中心,山东青岛266003 [2]青岛大学天然色素研究所,山东青岛266071

出　　处：《精细化工》2000年第9期505-506,514,共3页Fine Chemicals

摘　　要：采用 φ(乙醇 ) =70 %的乙醇热回流法和超临界CO2 萃取法提取银杏叶中的活性成分 ,并用定性、定量的方法测定了银杏叶提取物中活性成分及其质量分数 ;结果表明 :两种方法萃取的物质是相同的。φ(乙醇 ) =70 %的乙醇热回流法提取率为 2 5 6 % ,总黄酮质量分数为 2 7 1% ;超临界CO2 萃取法提取率为 3 95 % ,总黄酮质量分数为 35 2 8% ,超临界CO2 萃取法有着明显的优越性。The leaves of G biloba were extracted with ethyl alcohol [φ(ethannol)=70%] under reflux and with supercritical CO\-2 separately.The results showed that the yield of alcohol extraction was 2.56% with a flavonoid mass fraction 27.1%,the yield of supercritical CO\-2 extraction was 3.95% with a flavonoid mass fraction 35.28%.The supercritical CO\-2 extraction is obviously advantageous.

关 键 词：银杏黄酮 银杏内酯 超临界二氧化碳萃取 银杏性 

分 类 号：TQ289[化学工程—有机化工]