CAJ | 학술논문

通过测定海芦笋水提物、醇提物、海芦笋粗多糖和精多糖还原能力及对羟自由基(·OH)和超氧阴离子自由基(O_2~-·)的清除能力,研究海芦笋提取物的抗氧化活性.结果表明:海芦笋水提物、醇提物和多糖对·OH都有较强清除作用,但清除能力均低于对照物VC;在相同浓度下,各提取物的还原能力和对·OH的清除能力呈相同趋势,均是海芦笋水提物较醇提物强,粗多糖较精多糖强.但海芦笋水提物和多糖在实验所选浓度范围内,对邻苯三酚自氧化没有抑制作用,而醇提物显示出一定抑制活性.
통과측정해호순수제물、순제물、해호순조다당화정다당환원능력급대간자유기(·OH)화초양음리자자유기(O_2~-·)적청제능력,연구해호순제취물적항양화활성.결과표명:해호순수제물、순제물화다당대·OH도유교강청제작용,단청제능력균저우대조물VC;재상동농도하,각제취물적환원능력화대·OH적청제능력정상동추세,균시해호순수제물교순제물강,조다당교정다당강.단해호순수제물화다당재실험소선농도범위내,대린분삼분자양화몰유억제작용,이순제물현시출일정억제활성.
Polysaccharides as the major components in Salicornia were extracted using different solvents such as water and ethanol. The antioxidant activities of water extract and ethanol extract from Salicornia, crude Salicornia polysaccharides and purified Salicornia polysaccharides were evaluated by ferric reducing antioxidant power assay, hydroxyl (·OH) free radical scavenging capacity assay and superoxide anion (O_2~-·) free radical scavenging capacity assay. Results indicated that water extract, ethanol extract and polysaccharides from Salicornia all had strong scavenging capacity for hydroxyl free radicals, which scavenging capacity than purified polysaecharides. Although water extract and polysaccharides did not exhibit scavenging capacity for superoxide anion free radicals at the experimental concentration range, ethanoll extract revealed certain scavenging capacity for superoxide anion free radicals.