茶树菇多糖抗氧化性能的研究  

STUDY ON THE ANTIOXIDANT ACTIVITY OF POLYSACCHARIDE FROM AGROCYBE AEGERITA

作　　者：余萍[1] 郑立群[1] 方一泓[1] 

机构地区：[1]福建师范大学化学与材料学院,福建福州350007

出　　处：《食品研究与开发》2009年第11期36-40,共5页Food Research and Development

摘　　要：采用水提醇沉的方法从茶树菇子实体中提取茶树菇粗多糖,经DEAE-Sephadex A-25柱层析得到茶树菇纯多糖。研究茶树菇粗多糖的还原能力及清除亚硝酸根的作用,考察茶树菇纯多糖对羟基自由基、超氧阴离子的清除作用,以此来评价该多糖的抗氧化活性。结果表明,茶树菇多糖具有较强的体外抗氧化性能,对亚硝酸根,羟基自由基及超氧阴离子具有明显的清除作用。A polysaccharide fraction, ACPS, was obtained from fruit bodies of Agrocybe aegerita following extraction with hot water, ethanol precipitation, and DEAE-Sephadex A-25 chromatography. The deoxidization and the abi｜ity of eliminating NO2^- of the A grocybe aegerita crude polysaccharide was studied. The antioxidant activities of ACPS was evaluated by scavenging ·OH and ·O2^-. The results showed that the Agrocybe aegerita polysaccharide had satisfactory antioxidant activity in vitro, and it had obvious scavenging effect on NO2^-,· OH and ·O2^-.

关 键 词：茶树菇 子实体多糖 抗氧化活性 自由基 NO2-清除作用 

分 类 号：R285[医药卫生—中药学]