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茶叶科学 ›› 2008, Vol. 28 ›› Issue (3): 172-180.doi: 10.13305/j.cnki.jts.2008.03.011

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膜过滤绿茶多糖的系统分级纯化及免疫活性分析

寇小红1,2, 江和源1,*, 崔宏春1,2, 张建勇1, 高晴晴1,2, 袁新跃1, 舒爱民1, 刘晓辉1,2, 高琪1   

  1. 1. 农业部茶叶化学工程重点开放实验室,中国农业科学院茶叶研究所,浙江 杭州 310008;
    2. 中国农业科学院研究生院,北京 100081
  • 收稿日期:2008-03-10 修回日期:2008-04-09 出版日期:2008-06-15 发布日期:2019-09-16
  • 通讯作者: *jianghy@mail.tricaas.com
  • 作者简介:寇小红(1983— ),女,湖北荆门人,硕士研究生,从事天然产物化学研究。
  • 基金资助:
    国家自然科学基金项目(30400306)和浙江省钱江人才计划(QJD0702012)

Systematic Separation, Purification of Water-soluble Green Tea Polysaccharides and Their Immunological Activities

KOU Xiao-hong1,2, JIANG He-yuan1,*, CUI Hong-chun1,2, ZHANG Jian-yong1, GAO Qing-qing1,2, YUAN Xin-yue1, SHU Ai-min1, LIU Xiao-hui1,2, GAO Qi1   

  1. 1. Key laboratory of Tea Chemical Engineering, the Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agriculture Science, Hangzhou 310008, China;
    2. Chinese Academy of Agriculture Science, Beijing 100081, China
  • Received:2008-03-10 Revised:2008-04-09 Online:2008-06-15 Published:2019-09-16

摘要: 采用150 kD、20 kD、6 kD的超滤膜和对水溶性茶多糖进行分级和浓缩,得到的三部分截留液分别经过DEAE-52纤维素离子交换层析和丙烯葡聚糖凝胶Sephacryl S-300柱层析系统分离、纯化,共得到了20多个分级组分;HPGPC-ELSD鉴定各多糖组分的纯度及分子量分布,结果表明得到5个均一多糖组分;用小鼠巨噬细胞系Raw264.7检测免疫活性,发现对小鼠巨噬细胞Raw264.7有显著活性的多糖组分大多集中在20 kD左右,大多为不均一多糖。

关键词: 茶多糖, 超滤, 分级, 纯化, 免疫活性

Abstract: Water-soluble green tea polysaccharides were separated and purified by Ultrafiltration membranes with pore diameter of 150 kD, 20 kD, 6 kD in turn. All the three fractions were further separated and purified by DEAE-cellulose ion-exchange chromatography and Sephacryl S-300 column chromatography, and more than 20 green tea polysaccharide components totally were obtained. Their purity and molecular weight distribution were determined with high performance gel permeation chromatography (HPGPC) equipped with ELSD detector, and five components of homogeneous polysaccharide were obtained. The immunological activities of these green tea polysaccharides were determined by stimulated phagocytosis and nitric oxide production on RAW264.7 macrophage cell line of mice. Results showed that the tea Polysaccharides with 20 kD MW possessed significant immunological activities on NO production or phagocytosis of mice macrophage Raw 264.7 cells.

Key words: tea polysaccharide, ultrafiltration, seperation, purification, immunologic activity

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