【摘要】 共选取6种黔产野菜灰灰菜、蕨菜、马齿苋、剪刀菜、西洋菜、水芹菜,测定其水提取液和乙醇提取液对·OH和DPPH自由基的清除能力,并采用IC50对其抗氧化能力进行评价,以油脂抗氧化实验研究其抗菜籽油和猪油氧化的能力。结果表明,这6种野菜对·OH和DPPH自由基均具有一定抗氧化作用,并且能很好地抑制菜籽油和猪油氧化,但水芹菜对猪油有一定的促氧化作用。更多还原

【Abstract】 Six potherbs including Chenopodium album linn,Pteridum aquilinum var latiusculum,purslane,Picris divaricata vaniot,water cress and Bengal waterdropwort from Guizhou were extracted with ethanol or water and the extracts were tested for their hydroxyl and DPPH free radical scavenging capabilities.Meanwhile,the IC50 values as determined using rapeseed oil and lard as antioxidant models were used to evaluate their antioxidant activity.The results indicated that the 6 potherbs exhibited high hydroxyl and DPPH free radical scavenging capabilities and had excellent antioxidant effects on rapeseed oil and lard.However,added Bengal waterdropwort could accelerate oxidantion of rapeseed oil and lard.更多还原