茶叶中原花青素研究进展
摘要： 原花青素是茶叶中一类重要的多酚类物质,也是一种天然的抗氧化剂,近年来茶叶中含有的原花青素类物质（Proanthocyanidins,PAs）受到广泛关注。对茶树中原花青素类物质的研究有助于推进茶树生长过程中多酚类代谢途径研究,在茶叶生物化学基础研究方面具有重要意义。基于国内外学者对原花青素的研究现状,综述了原花青素与花青素的关系、茶叶中原花青素的生物合成途径、缩合机理、茶叶中原花青素的类型,以及在茶叶中的含量差异和应用现状,并探讨其研究利用的发展趋势。
关键词: 原花青素, 花青素, 缩合机理, 研究进展
Abstract: Proanthocyanidins are an important kind of polyphenols in tea leaves, and regarded as natural antioxidants. In recent years, proanthocyanudins in tea leaves had attracted widespread attention. Relative research would promote the study on polyphenol metabolic pathways during tea growth process. Moreover it is of great significance in conducting fundamental research on tea plant biochemistry. Based on domestic and overseas research status, this study summarized the relationship between proanthocyandins and anthocyandins, the biosynthetic pathways of procyanidins in tea and the condensation mechanism of proanthocyandins. The types, the application status and content difference of proanthocyanidins were also concerned in an attempt to discuss the development trend in the future.
Key words: proanthocyanidins, anthocyanins, condensation mechanism, research progress
中图分类号:
S571.1
TS272.5+4
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