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我国是茶树的原产地,是世界上最早发现和利用茶叶的国家,发现野生茶树迄今已有五千年的历史,人工栽培也有三千多年。现在,茶叶已成为世界人民普遍喜爱的一种日常饮料,在世界三大无酒精饮料(茶叶、咖啡、可可)中,堪称经济实惠饮料。茶叶中含有丰富的维生素C、维生素B类和P类,还含有少量的氨基酸、蛋白质、糖、脂肪酸、矿物质和芳香物顷,对人体健康十分有益,近年来国内外的研究还表明,茶叶中的茶多酚含有儿茶素,具有抑制癌细胞的功效。
China is the country of origin of tea trees and the earliest country in the world to find and use tea leaves. It has been found that wild tea trees have a history of 5,000 years and cultivated for more than 3,000 years. Now, tea has become a popular drink of the world, an affordable drink among the world’s three major non-alcoholic beverages (tea, coffee, cocoa). Tea is rich in vitamin C, vitamin B and P, but also contains a small amount of amino acids, proteins, sugars, fatty acids, minerals and aromatic substances are very beneficial to human health, in recent years, domestic and foreign research also shows that tea The polyphenols contained in catechins have the effect of inhibiting cancer cells.