摘要
采用DPPH法、Fenton反应和邻苯三酚自氧化法分别测定以蒸馏水、60%乙醇、95%乙醇、丙酮、氯仿为溶剂的马齿苋提取物清除羟基自由基、超氧阴离子自由基和DPPH自由基的能力。结果表明,在试验条件下,马齿苋不同溶剂提取物对OH·,O2-·和DPPH·自由基均有一定程度的清除作用,其中95%乙醇提取物对3种自由基有较好的清除能力。马齿苋可作为天然抗氧化物质的良好来源,可进一步开发利用。
The methods of DPPH methylrosaniline chloride, pyrogallol autoxidation were used to assay the scavenging abilityof extracts with water, 60% ethanol, 95% ethanol, acetone, chloroform to hydroxyl free radical （OH.）, super oxide free radical（O2-·） and DPPH free radical of activity. The results were that different solvent extracts from Portulaca oleracea L. had certainscavenging ability to OH. free radical, O2-· free radical and DPPH free radical. Especially 95% ethanol solvent extract had significantscavenging effects. Portulaca oleracea L. is good natural antioxidants, which can further be developed.
出处
《食品工业》
北大核心
2014年第6期76-78,共3页
The Food Industry
基金
贵州省科技厅项目(黔科合J字[2010]2263号)
贵州民族大学引进人才科研项目
关键词
马齿苋
提取物
自由基
抗氧化作用
Portulaca oleracea L.
extract
free radical
antioxidation
