摘要
为探讨菊芋叶黄酮类化合物的体外抗氧化活性,采用分光光度法测定了菊芋叶黄酮类化合物对O2-.和.OH的清除能力,以及对猪油氧化的抑制作用。结果表明:随菊芋叶黄酮类化合物浓度的增加,其对O2-.和.OH的清除能力也相应增加。当菊芋叶黄酮浓度达100μg/mL时,对O2-.的清除率达到66.45%,对.OH的清除率可达69.33%。此外,菊芋叶黄酮对油脂也表现出良好的抗氧化作用,可抑制猪油POV值的升高。
Scavenging ability of flavonoid from Helianthus tuberosus leaves on O-2·and ·OH was determined by ultraviolet and visible spectrophotometer to explore its in vitro antioxidant activity.The results showed that the scavenging ability of flavonoid from Helianthus tuberosus leaves on O-2·and ·OH increased with the increase of flavonoid concentration,and up to 66.45% and 69.33% respectively when the flavonoid concentration was 100 μg/mL,Flavonoid from Helianthus tuberosus leaves also had good antioxidant activity on lard and could inhibit the increase of POV.
出处
《贵州农业科学》
CAS
北大核心
2011年第4期52-54,共3页
Guizhou Agricultural Sciences
基金
兰州理工大学优秀青年资助计划(1008ZCX007)
兰州理工大学博士启动基金(BS08200904)
关键词
菊芋叶
黄酮类化合物
抗氧化性
清除率
Helianthus tuberosus leaves
flavonoids
antioxidant activity
scavenging rate
