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茶叶中多酚类及其衍生物的含量有20～33％,其中儿茶素类含有12～24％,占多酚类总量的60～80％。它们对茶树的生长发育,新陈代谢和制茶品质关系非常密切,对人体也具有重要的生理活性,因而受到人们的广泛重视。茶叶中儿茶素生物合成是一个重要而.又未解决的问题,它不仅在茶树生理生化上有重要意义,在提高茶叶产量和质量上也有重要作用,甚至在整个生物化学领域里,芳香环核的生物合成也是有重要意义
Tea polyphenols and their derivatives content of 20 to 33%, of which catechins contain 12 to 24%, accounting for 60 to 80% of the total polyphenols. They are closely related to the growth and development of tea trees, metabolism and tea quality, and also have important physiological activity on the human body, which has attracted people’s extensive attention. Catechin biosynthesis in tea is an important but unresolved problem. It not only has important physiological and biochemical significance in tea, but also plays an important role in improving the yield and quality of tea. Even in the whole field of biochemistry, aromatic rings Nuclear biosynthesis is also of great significance