摘要
以DPPH·清除能力作为考察指标,通过正交实验确定铃兰抗氧化物质的最佳提取方案,并测定铃兰提取物清除羟自由基(·OH)和过氧化氢(H2O2)的能力及还原力.结果表明:提取铃兰抗氧化物质的最优方案是用蒸馏水在75℃下提取30min,其对DPPH·的清除率达96.1%,且对DPPH·的清除能力随浓度的增加而增强;铃兰水提取物对·OH和H2O2表现出较强的清除能力及还原力,这说明铃兰水提物具有较好的抗氧化性.
Antioxidant activities of water extract of Convallaria keiskei Miq.are determined through the orthogonal experiment of DPPH · scavenging capacity.Moreover,the · OH and H2O2 scavenging capacity and reducting power of Convallaria keiskei Miq.extract are analyzed.The optimized extract technology for the antioxidant extract of Convallaria keiskei Miq.are as follows： the Convallaria keiskei Miq.with water extraction solvent for 30 min at 75 ℃.The DPPH · scavenging capacity is 96.1%,and the scavenging ability of DPPH · is enhanced with increasing concentration.Convallaria keiskei Miq.water extract show stronger· OH and H2O2 scavenging ability and reducting power.It is show that Convallaria keiskei Miq.water extract here stronger antioxidant ability.
出处
《延边大学学报（自然科学版）》
CAS
2012年第1期64-66,共3页
Journal of Yanbian University（Natural Science Edition）
基金
延边大学"211"工程三期建设项目(YB211-0302)
关键词
铃兰
水提液
抗氧化性
Convallaria keiskei Miq.
water extract
antioxidant activity
