毛胶薯蓣多糖的体外抗氧化活性研究  

Study on Antioxidant Effective of Polysaccharides from Dioscarea subcalva Prain et Burk

作　　者：单承莺[1] 任红荣[1,2] 何海玲[1,2] 张卫明[1] 

机构地区：[1]南京野生植物综合利用研究院,江苏南京210042 [2]南京师范大学生命科学学院,江苏南京210097

出　　处：《食品与发酵工业》2009年第12期86-89,共4页Food and Fermentation Industries

基　　金：国家科技基础性工作和社会公益研究专项资金资助(NO.2003DEB6J074);国家科技支撑计划项目资金资助(NO.2006BAD06B05)

摘　　要：从毛胶薯蓣中提取多糖(DSP),采用生物化学的方法测定了DSP对H2O2、超氧阴离子自由基(O2-·)、羟基自由基(·OH)的清除能力,还原能力和总抗氧化能力。结果表明:DSP对H2O2、O2-·、·OH、具有良好的清除能力,同时还具有较强的还原能力和一定的抗氧化能力,活性大小与多糖的浓度呈明显的量效关系。Polysaccharide（DSP） from Dioscarea subcalva Prain et Burk was extracted and the scavenging effects of DSP on free radical oxygen （O·,·OH, H2O2） was measured . Meanwhile the reduction capacity and total antioxidant capacity were determined. Vc was used as control. Results showed that the reducing effects of DSP on ·OH, H2O2 were significant , DSP also had a strong reduction capacity and a weaker total antioxidant capacity. All these activities were concentration dependent.

关 键 词：毛胶薯蓣 多糖 抗氧化 

分 类 号：R285[医药卫生—中药学]