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茶氨酸提取纯化工艺研究 被引量:37

ISOLATION AND PURIFICATION OF THEANINE
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摘要 系统研究了从茶多酚工业废液中提取纯化茶氨酸的工艺。采用絮凝、吸附、阳离子树脂交换、重结晶工艺来分离纯化茶氨酸。结果表明 ,絮凝能有效的去除茶多酚工业废液中的蛋白质等杂质 ,杂质的去除率为5 0 % ;吸附能进一步去除色素、多酚类物质及大分子有机物 ;阳离子交换树脂能较专一吸附氨基酸。茶多酚工业废液经絮凝→吸附→阳离子树脂交换工艺可得纯度 5 0 %的茶氨酸 ,得率为 1.8% ;通过重结晶可得到纯度90 %的茶氨酸 ,得率为 0 .8%。 Technique of isolation and purification of theanine from tea polyphenol industrial waste liquid was studied. To get rid of tea polyphenols,protein,soluble sugar,some of chemical technique for separation,such as flocculation,adsorption,ion-exchange adsorption and re-crystalization were used. The result suggested that flocculation and adsorption can efficiently remove protein and tea polyphenols;Cation ion-exchange resin can adsorb amino acids specially. High purity theanine could be produced through re-crystalization,the final yield and purity of theanine were 0.8% and 90%,respectively.
出处 《天然产物研究与开发》 CAS CSCD 2004年第5期442-447,共6页 Natural Product Research and Development
基金 浙江省科技计划重点项目"茶氨酸提取制备产业化技术研究"( 2 0 0 2C2 10 2 3 )
关键词 阳离子树脂 重结晶 工艺 纯度 大分子 化工 阳离子交换树脂 茶氨酸 得率 茶多酚 theanine flocculation adsorption ion exchange re-cystalization.
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