摘要
儿茶素属于黄烷醇类化合物,在茶叶中含量较高。现代科学研究已证明儿茶素类物质除了具有直接的抗衰老作用外,还有诸多的保健作用:(1)可抑制亚硝酸胺的形成,亚硝酸胺被认为是一种强致癌物质;(2)能降低血浆中的总胆固醇;(3)有良好的抑菌效果和较强的抗氧化活性。
This paper describes an HPLC method for determining L-EGC, D-C, L-EC, L-EGCG, L-EGC in tea products. The operation conditions were: μ-Bondapak C18 column, Acetic acid : methanol : N, N-dimethylformamide : water (2 : 3 : 35: 160) as mobile phase, 1. 5ml/min flow rate in the first sixteen minutes, then 2ml/min and UV-280nm detec-tor. The coefficients of variation were less than 5%, and the recoveries were more than 90%.
出处
《色谱》
CAS
CSCD
北大核心
1993年第4期251-254,共4页
Chinese Journal of Chromatography
