大叶苦丁茶抗氧化活性研究进展

Research Progress on Antioxidant Activity of Large-leaved Ku-dingcha

大叶苦丁茶是我国南方一种药食两用的传统饮品与药材,也是市场上广泛流通、被普遍当作“苦丁茶正品”的别样茶(non-Camellia teas),具有清热解毒、抗氧化、抗炎、止血凉血、抗菌等多种功效,其次生代谢物质化学成分复杂,主要包括多酚、多糖、黄酮、三萜等多种活性成分。大叶苦丁茶活性成分是天然的抗氧化剂,具有绿色、无毒、高效等特点,在食用油脂储藏、食品保鲜、化妆品、保健品以及抗氧化药物等方面具有良好的应用前景。本文以大叶苦丁茶化学成分的抗氧化作用为主线,综述大叶苦丁茶中具有代表性的多酚、多糖、黄酮、三萜等化学成分的含量、组成及其抗氧化作用,探讨大叶苦丁茶的应用并对其进行展望,拟为大叶苦丁茶的开发与利用提供参考。

Large-leaved Kudingcha is a traditional drink and medicinal material for both medicine and food in southern China.It is also a kind of non-Camellia tea which is widely circulated in the market and is generally regarded as the‘authentic Kudingcha’.It has multiple effects such as heat-clearing and detoxifying,anti-oxidation,anti-inflammatory,hemostasis and blood-cooling,antibacterial and so on.The chemical composition of the secondary metabolites is complex,mainly including polyphenols,polysaccharides,flavonoids,triterpenes and other active ingredients.The active ingredients of large-leaved Kudingcha are natural antioxidants,which have the characteristics of green,non-toxic and high efficiency.They have good application prospects in edible oil storage,food preservation,cosmetics,health products,and antioxidant drugs.This article focuses on the antioxidant properties of chemical composition in large-leaved Kudingcha.The content,composition and antioxidant effect of representative polyphenols,polysaccharides,flavonoids,triterpenes and other chemical components in large-leaved Kudingcha were reviewed,and the application of large-leaved Kudingcha was discussed and prospected.It is intended to provide reference for the development and utilization of large-leaved Kudingcha.