Se^(4+)沉淀法提取茶多酚及制备工艺比较  

Study on the Production Technology of Polyphenols

作　　者：林建平[1] 王晓钰[1] 姚义务[1] 吴端鑫[1] 周文富[1] 

机构地区：[1]三明学院化生工程系,福建三明365004

出　　处：《三明高等专科学校学报》2004年第4期62-65,74,共5页Journal of Sanming College

基　　金：三明学院大学生课外科技"挑战杯"项目资助

摘　　要：用水、乙醇、丙酮作提取剂,用Ca2+、Al3+、Zn2+等金属离子作沉淀剂,分别提取绿茶中的茶多酚,对其得率进行比较,结果表明以Se4+作沉淀剂,茶多酚的提取率达29.5%,茶多酚硒盐在强酸中最佳转溶条件为料酸比为110(v/v),反应时间30min,条件易于控制,且得率高。Using water,alcohol,aletone as collectreagent,and using the metal ion such as Ca^2+ 、Al^3+ 、Zn^2+ and so on as sedimentreagent,picking up the tea-polyphenols of green-tea each other,compared with the draw-rate finally,we have the conclutions that using Se^4+ as sediment reagent,the sediment rate of the tea-polyphenols extraction reachs 29.5%.The salt of the tea-polyphenols-selenium of best dissolve requirement in strong alid,B that the proportion of the material and alid is one compare two,then react about twenty minutes.This condition can be easily controlledand reach a higher draw-rate.In this expriment,we also explore the combine conditions of the tea-polyphenols with other metal or nonmetal ion.

关 键 词：茶多酚 CA^2+ 制备工艺 乙醇 绿茶 控制 提取率 得率 ZN^2+ 金属离子 

分 类 号：G633[文化科学—教育学] TS202.3[轻工技术与工程—食品科学]