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茶叶科学 ›› 2010, Vol. 30 ›› Issue (S1): 551-555.

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白茶多糖的提取与结构初探

郑德勇1,3, 杨江帆2,3, 潘晓云1, 凌宏有1, 林清霞1   

  1. 1. 福建农林大学材料工程学院;
    2. 福建农林大学园艺学院;
    3. 福建农林大学茶业科技与经济研究所,福建 福州 350002
  • 收稿日期:2010-09-23 修回日期:2010-12-10 出版日期:2010-12-20 发布日期:2019-09-11
  • 作者简介:郑德勇(1966— ),男,副教授。主要研究方向为林产化工和茶叶有效成分提取与分析。ffczdy@163.com
  • 基金资助:
    福建省发改委“白茶资源高效利用关键技术熟化研究”(闽发改投资[2006]781号),科技部科技富民强县专项行动计划“政和白茶现代生产技术集成与产业化示范”(国科发农[2008]471号)

Studies on the Extraction of White Tea Polysaccharide and Its Structure

ZHENG De-yong1,3, YANG Jiang-fan2,3, PAN Xiao-yun1, LIN Hong-yong1, LIN Qing-xia1   

  1. 1. College of Material Engineering, Fujian Agriculture and Forestry University;
    2. College of Horticulture, Fujian Agriculture and Forestry University;
    3. Institute of Science, Technology and Economics of Tea Industry, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2010-09-23 Revised:2010-12-10 Online:2010-12-20 Published:2019-09-11

摘要: 白茶经热水浸提、浓缩、醇沉、透析等工序制得一种白茶多糖,这种多糖采用saveg法处理前后的IR谱图和单糖组成均无变化。结果表明,白茶多糖是一种由8个单糖组成的寡糖,分子量为1453~1468,其结构中含有1个鼠李糖基、2个阿拉伯糖基、1个未知单糖A基、1个葡萄糖基和3个半乳糖基,单糖通过苷键结合。白茶多糖结构中不含氨基酸或其他酸性基团。

关键词: 白茶, 茶多糖, 单糖, 提取, 结构

Abstract: A polysaccharide preparation was obtained from white tea by using hot water extraction, condensation, alcohol-sedimentation, dialysis and protein isolation. The results showed that the product is a white tea oligosaccharide with a molecular weight of 1453~1468. The white tea oligosaccharide is consist of 1 rhamnose, 2 arabinose, 1 unknown monosaccharide, 1 Glucose and 3 Galactose. There is no amino acid or other acid group in the structure of white tea oligosaccharide.

Key words: white tea, tea polysaccharide, monosaccharide, extraction, structure

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