膜分离技术在提取银杏叶黄酮类化合物中的应用  

The Application of Membrane Technology in Extracting Flavones Compounds in Ginkgo Leaves

作　　者：于涛[1] 钱和[1] 

机构地区：[1]江南大学 食品学院,江苏无锡214036

出　　处：《无锡轻工大学学报（食品与生物技术）》2004年第6期55-58,共4页Journal of Wuxi University of Light Industry

摘　　要：研究了银杏叶中黄酮类化合物的提取过程及工艺,使用超滤技术对粗提的产品进行精制,对影响超滤的工艺条件如压力、温度、时间进行考察,确定了最佳的提取条件:乙醇水溶液体积分数50%、提取温度80℃、料液质量体积比1 g:10 mL、提取时间2 h.提取物中黄酮质量分数达到5.96%,超滤后的产品中黄酮质量分数达到33.99%.This paper studied extracting process and technique of flavones compounds in Ginkgo leaves, and the purification of the crude product with ultra filtration technology. The conditions affecting ultra filtration such as pressure, temperature, and time were also studied. The optimum extracting conditions were obtained as follow: water-alcohol 1: 1, T=80 ℃ , material-water 1 g :10 mL, t=2 h, 5. 96% flavones in extractions. Product contained 33. 99% flavones after ultra filtration.

关 键 词：银杏叶 黄酮 提取 超滤 

分 类 号：TQ28[化学工程—有机化工]