摘要
为了促进蛇莓的综合利用,采用总抗氧化能力、·OH清除率和DPPH·清除率来考察蛇莓总多酚的体外抗氧化活性。结果表明:蛇莓总多酚总抗氧化能力高于VC,且蛇莓总多酚的·OH清除率远高于VC。此外,蛇莓总多酚对DPPH·的IC50(18.2μg·mL-1)与VC(IC50=17.6μg·mL-1)相近。蛇莓总多酚是天然的抗氧化活性剂和自由基清除剂。
In order to promote the comprehensive utilization of Duchesnea indica Focke ,the antioxidant activity in vitro of total polyphenol from Duchesnea indica Focke was evaluated by total antioxidant activity ,hydroxyl and DPPH free radical scavenging activity .The results showed that the total antioxidant activity of total poly-phenol from Duchesnea indica Focke was slightly higher than VC ,and the hydroxyl free radical scavenging ac-tivity of total polyphenol from Duchesnea indica Focke was much higher than VC .In addition ,the half-maximal inhibitory concentration（IC50 ）for DPPH free radicals of total polyphenol from Duchesnea indica Focke and VC was similar ,which was 18 .2 and 17 .6μg·mL-1 ,respectively .Total polyphenol from Duchesnea indica Focke is natural antioxidant and free radical scavenger .
出处
《黑龙江农业科学》
2014年第9期94-96,共3页
Heilongjiang Agricultural Sciences
基金
国家青年自然科学基金资助项目(41303016)
贵州省科技厅自然科学基金资助项目(黔科合J字[2011]2079号)
凯里学院博士专项基金资助项目(BS201003)
贵州省高校优秀科技创新人才计划资助项目(黔教合KY字[2012]099号)
贵州省教育厅"高层次人才引进项目"资助项目(院科通[2012]7号)
凯里学院重点资助项目(Z1202)
贵州省特色重点学科资助项目(黔教高发[2011]208号)
凯里学院重点学科资助项目(院通字[2010]86号)
关键词
蛇莓
总多酚
抗氧化活性
Duchesnea indica Focke
total polyphenol
antioxidant activity
