茶叶中茶多酚提取分离技术的研究进展

Extraction and separation technology of tea polyphenols from tea leaves

简单介绍了茶叶中茶多酚和咖啡因的药理活性以及茶叶有效成分的组成和几种主要儿茶素类化合物的结构,分析探讨了提取分离废弃茶叶的原因和意义,并综述了近年来国内外有关茶叶中茶多酚提取分离技术的研究进展,包括溶剂提取法、离子沉淀法、超声波提取法、超临界流体萃取法、微波辅助萃取法、柱色谱法、大孔吸附树脂法和高速逆流色谱法,通过不同的实验过程对不同技术手段的应用及特点进行概述,并对这一研究领域的发展前景和发展方向做出展望。

This paper introduces pharmacological activities of tea polyphenols and caffeine in tea leaves, effective ingredients of tea composition, and structures of several main catechines compounds, and discusses the cause and significance for extraction and separation of the waste tea. The research progress of relevant extraction and separation techniques of tea polyphenols was reviewed, including solvent extraction, ion precipitation, ultrasonic extraction, supercritical fluid extraction, microwave-assisted extraction, column chromatography, macroporous adsorption resin, and high speed counter current chromatography. The application and features of different techniques were summarized through diverse experiment process, so as to look to the development prospect and development direction of this research in the field.