楮头红皂苷的抗氧化活性  

Study on anti-oxidant activity of saponins from Sarcopyramis nepalensis Wall

作　　者：李宇翔[1] 申爱丽[2] 李清禄[2] LI Yuxiang;SHEN Aili;LI Qinglu(Fujian Center of Disease Control and Prevention, Fuzhou, Fujian 350002, China;Engineering Laboratory of Animal Phar^maceuticals, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China)

机构地区：[1]福建省疾病控制中心,福建福州350002 [2]福建农林大学动物药物工程实验室,福建福州350002

出　　处：《亚热带农业研究》2016年第2期93-96,共4页Subtropical Agriculture Research

基　　金：福建省自然科学基金(2013J01360)

摘　　要：通过测定楮头红皂苷的总还原力、对超氧阴离子(O_2^(-·))的清除率以及对脂质体过氧化的抑制率来探讨其抗氧化能力。结果表明,楮头红皂苷具有较强的还原能力,显著降低O_2^(-·)自由基的活性和抑制脂质体过氧化,其抗氧化活性与浓度之间均有良好的量效关系,具有较强的体外抗氧化活性。To study the antioxidant of saponins of Sarcopyramis nepalensis Wall in vitro, the total antioxidant capacity of saponins from S. nepalensis Wall was deter^mined by optimized ferricyanide/prussian blue method. The superoxide anion radical scavenging of saponins was observed in the ways of pyrogallol oxidation systems, lipid peroxidation by means of 2-thiobarbituric acid (TBA). The saponins from S.nepalensis Wall had an effective antioxidant capacity as well as the pow-er of reducing the activity of free radicals 0 2' and the capable of inhibiting lipid peroxidation, and had a good dose-effect relationship between the antioxidant activity and its concentration.It has been concluded that saponins from S.nepalensis Wall show-ed a certain extent of antioxidant effect in vitro.

关 键 词：楮头红 皂苷 抗氧化 

分 类 号：R284.2[医药卫生—中药学]