茶叶活性成分的功能
文章摘要:茶是一种对人体新陈代谢具有重要调节作用的功能性饮品,饮茶可以提高人体对疾病的免疫力,可以预防许多对人体有很大威胁性的疾病。茶叶中含有诸如茶氨酸、咖啡碱和茶多酚等物质,这些物质对人体新陈代谢具有重要调节作用。在茶叶的主要活性成分中,儿茶素及其氧化物如茶黄素等有显著抗血凝、促纤溶、防止血小板粘附和聚集的作用;绿茶提取物、EGCG等可以有效抑制脂肪分解产物在消化道内的吸收,进而起到减肥的效果;在肿瘤发展的3个阶段,茶多酚类物质通过对自由基的清除... 展开
Abstract:Tea is a kind of functional drink which has important regulating effect on human metabolism. Drinking tea can improve human immunity to diseases and prevent many diseases which are very threatening to human body. Tea contains substances such as theanine,theanine and tea polyphenols,which play an important role in regulating human metabolism. Among the main active components of tea,catechins and their oxides such as theaflavins have... 展开