应用化学 ›› 1995, Vol. 0 ›› Issue (2): 107-109.

• 研究论文 • 上一篇    下一篇

茶多酚的离子沉淀提取法

葛宜掌, 金红   

  1. 煤炭科学研究总院合肥研究所化工室, 合肥 230001
  • 收稿日期:1994-07-03 修回日期:1994-11-02 出版日期:1995-04-10 发布日期:1995-04-10

Extraction of Tea-Polyphenols by Precipitation Method

Ge Yizhang, Jin Hong   

  1. Hefei Research Institute, Central Coal Mining Research Institute, Hefei 230001
  • Received:1994-07-03 Revised:1994-11-02 Published:1995-04-10 Online:1995-04-10

摘要: 茶叶中富含一类多经基的酚性化合物—茶多酚(Tea-Polyphenols,简称TP)是一种新型的天然抗氧化剂,且具有抗癌、抗衰老、抗辐射、清除人体自由基、降血糖血脂等一系列重要的药理功能,在油脂、食品、医药、日化等领域具有广阔的应用前景.TP的提取技术和应用开发近年来受到了国内外关注.

关键词: 茶多酚, 金属离子, 提取, 沉淀法

Abstract: The conditions of extraction of tea-polyphenols(TP)from tea dusts by precipitation method using metal ions Ca2+,Mg2+,Ba2+,Fe3+,Zn2+and Al3+ as precipitating agentshave been investigated.The influences of pH value,temperture,time,type and content ofbasic solutions used to regulate the pH value on the extraction rate of TP were examined.Itis shown that the extraction rate of TP could reach 10.5% and the content of the effective ingredients of TP could reach 99.5% by the proposed method.

Key words: tea-polyphenol, metalion, extraction, precipitation method