银杏叶黄酮提取溶剂研究  

RESEARCH OF SOLVENTS FOR EXTRACTING FLAVONE FROM GINKGO LEAVES

作　　者：张济龙[1] 张光先[1] 张凤秀[1] 李学刚[1] 任红勤 

机构地区：[1]西南农业大学基础科技学院

出　　处：《西南农业大学学报（自然科学版）》1999年第2期180-182,共3页Journal of Southwest Agricultural University

基　　金：四川省科学基金;重庆市攻关项目

摘　　要：对几种银杏叶黄酮提取溶剂研究表明，ＮａＯＨ水溶液提取效果最好，ＮａＯＨ乙醇溶液次之。０．２５％ＮａＯＨ乙醇溶液中银杏叶黄酮的最大提取率比用乙醇提取提高２８．４％，时间缩短０．５ｈ；在０．１％ＮａＯＨ水溶液中，银杏叶黄酮的最大提取率提高４６．５％，时间缩短１ｈ。Some solvent systems for extracting flavone from gingko (Ginkgo bibola) leaves were studied, i. e. ethanol, NaOH ethanol solution, NaOH water solution and Na 2CO 3 water solution. NaOH water solution gave the best results, followed by NaOH ethanol solution. Compared with extraction with ethanol, the greatest extraction rate of flavone increased by 28.4% and 46.5% and the extraction time was reduced by 0.5 and 1 h in the treatments of 0.25% NaOH ethanol solution and 0.1% NaOH water solution, respectively.

关 键 词：银杏叶黄酮 提取溶剂 氢氧化钠水溶液 氢氧化钠乙醇溶液 心脑血管系统药物 

分 类 号：R284.2[医药卫生—中药学] R972[医药卫生—中医学]