紫花地丁乙醇提取物的抗氧化性研究

Study on antioxidatant of ethanolic extract from viola yedoensis makino

研究紫花地丁乙醇提取物的抗氧化性,将其分别添加到猪油和菜籽油中,利用POV法测定其对油脂的抗氧化作用,同时利用清除DPPH·法测定其清除自由基的能力。结果表明:紫花地丁乙醇提取物对猪油的抗氧化效果明显,1.5%的乙醇提取物的抗氧化效果强于0.02%Vc,略差于0.02%VE;对菜籽油的抗氧化实验表明,1.5%的乙醇提取物强于0.02%Vc和0.02%VE;随着乙醇提取物溶液浓度的增加,清除DPPH·的能力也增强。1.5%的乙醇提取物溶液清除DPPH·能力比0.02%Vc和0.02%VE强。紫花地丁乙醇提取物可有效地延缓油脂的脂质过氧化反应,且清除DPPH·的能力较强,可为应用于医药、食品、化妆品提供依据。

In order to study antioxidative of ethanolic extract from Viola yedoensis Makino, the ethanolic extract was added to lard and rapeseed oil respectively, the antioxidatant effect to oil was inspected by the determination of POV. In the same time the ability of scavenging free-radical was measured by the Elimination of the DPPH.. The results show that the antioxidatant effect of ethanolic extract from Viola yedoensis Makino to the lard is obvious, the antioxidatant of 1.5% ethanolic extract is stronger than the 0.02% Vc and weaker than 0.02% VE. The results show that the antioxidatant activity of ethanolic extract to the rapeseed oil, the antioxidatant of 1.5% ethanolic extract on the rapeseed oil is stronger than the 0.02% Vc and 0.02% VE. Along with ethanolic extract density increasing, the ability of eliminating the DPPH- also is strengthened. The ability of 1.5% ethanolic extract eliminating DPPH. is stronger than 0.02% Vc, VE. Ethanolic Extract from Viola yedoensis Makino can restrain the reaction of lipid peroxidation of oil significantly and the ability of eliminating DPPH.is strong, which provided the evidence to the field of medicine, food, cosmetics.