海南新老苦丁茶浸提液中功能性成分的测定与比较研究

对海南苦丁茶新茶和老茶中的主要功能性成分蛋白质、可溶性氨基酸、茶多糖、茶多酚进行了含量检测。结果表明,海南苦丁茶是一类茶多糖含量较高的茶,茶多酚的含量较一般的茶叶低。此外,新茶的茶多酚、氨基酸含量要高于老茶,而老茶的茶多糖含量要高于新茶。两种茶类的蛋白质含量相差不多。

Determination and Comparison of Functional Ingredients Between New and Old Hainan I. latifolia

The contents of functional ingredient in Hainan I. latifolia extract include proteins,amino acids,polyphenols,tea polysaccharide was measured and compared. The result showed that Hainan I. latifolia is a type of tea which had higher polysaccharides than other tea. In addition,the tea extract made from new leaves had more polyphenols,and amino acid than extract made from old leaves,while the content of polysaccharide in old leaves was higher than the new leaves. Protein content of these two kinds of tea were almost the same.