茶多酚乙醇水溶液提取过程及搅拌槽放大规律  

Study on extraction process of tea-polyphenols and scale up law of agitating tank

作　　者：车红荣[1] 苟小锋[1] 郭笃信[1] 张效林[1] 亢茂德[1] 

机构地区：[1]西北大学化工系,西安710069

出　　处：《现代化工》2001年第1期29-31,共3页Modern Chemical Industry

基　　金：陕西省科技攻关项目!( 2 0 0 0K1 2-G1 )资助

摘　　要：研究了茶多酚乙醇水溶液提取过程中各因素对提取率的影响 ,确定最优工艺条件为 :乙醇质量分数 50 % ,溶剂用量 7ml/g,提取温度 60℃ ,提取时间 35min。通过冷、热模放大实验得出 ,茶多酚提取为内扩散过程 ,按临界悬浮转速放大是比较理想的放大方法。The effects of different factors on the extraction of tea-polyphenols were studied by using mixed solvent composed of alcohol and water. The optimal conditions were mass percentage of alcohol 50%, solvent 7 ml/g, extracting temperature 60°C, and extracting time 35 min. The results show that the process is controlled by interior diffusion and critical suspension speed is an ideal magnification method.

关 键 词：茶多酚 提取 搅拌槽 乙醇水溶液 放大方法 

分 类 号：TQ28[化学工程—有机化工]