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茶叶科学 ›› 2008, Vol. 28 ›› Issue (6): 443-449.doi: 10.13305/j.cnki.jts.2008.06.007

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茶多酚生产水相中茶氨酸分离技术研究

张星海1, 周晓红1, 陆旋1, 王岳飞2   

  1. 1. 浙江经贸职业技术学院应用工程系,浙江 杭州 310018;
    2. 浙江大学茶学系,浙江 杭州 310029
  • 收稿日期:2008-06-23 出版日期:2008-12-15 发布日期:2019-09-12
  • 作者简介:张星海(1973— ),男,安徽合肥人,讲师,主要从事生物活性物综合利用与开发研究。E-Mail: zjuxy2001@163.com
  • 基金资助:
    基金项目,浙江省供销社2007年科学研究项目(编号:07SS05)

Study on the Isolation Technology of Theanine from Aqueous Phase of Tea Polypheonls Production

ZHANG Xing-hai1, ZHOU Xiao-hong1, LU Xuan1, WANG Yue-fei2   

  1. 1. The Department of Applied Engineering, Zhejiang Economic and Trade Polytechnic, Hangzhou 310018, China;
    2. Department of Tea Science, Zhejiang University, Hangzhou 310029, China
  • Received:2008-06-23 Online:2008-12-15 Published:2019-09-12

摘要: 研究一种从生产茶多酚后的残留液中提纯茶氨酸的制备工艺;首先通过ZTC-II型天然澄清剂对茶多酚生产废液絮凝处理,离心液经过三种规格中空超滤膜超滤,透过液用一种特制的弱极性大孔树脂(JAD-2000)初步分离,制备含量在60%以上的茶氨酸粗品,再通过C18制备柱对其溶液进行分离纯化,制备含量在98%以上高纯度茶氨酸。结果表明经过絮凝和膜超滤处理,蛋白质和果胶等杂物去除率分别达到97%、89%以上,而茶多酚、可溶糖去除率不到9%,茶氨酸保留率达到93%;JAD-2000初步分离可得含量在61%以上粗茶氨酸,回收率达到71%以上,而醇洗馏份中茶氨酸含量甚微。经C18柱制备色谱分离粗茶氨酸样液,收集12.6~15.8βmin高浓度段馏份,检测知茶氨酸的回收率为71.3%,茶氨酸含量达98.3%。

关键词: 茶氨酸, 生产废液, ZTC, 超滤, 大孔树脂

Abstract: The preparative technology of theanine from the aqueous phase of tea polypheonls production was investigated. Firstly, retreating the aqueous liquids with ZTC-II, then, Separating the clarifying liquids by three kinds of ultra-filtration, the crude theanine (>60%) can be obtained from the filtrated liquid by using the JAD-2000 which is a kind of macroporous resin with weak polarity. High purity theanine (>98%) can be obtained through preparative high performance liquid chromatography (prep-HPLC) with C18 column. Results showed that proteins and pectin compounds were removed over 97% and 89% respectively, after flocculating and ultra-filtration. The removing rate of tea polypheonls and soluble sugar was less than 9% and the theanine was reserved above 93%. Crude theanine and high purity theanine were produced through JAD-2000 and the C18 column for prep-HPLC, the final recovering rate and purity of theanine were 71.5%, 61.2% and 71.3%, 98.3% respectively.

Key words: theanine, production waste-liquor, ZTC, ultrafiltration, macroporous resin

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