摘要
用氮蓝四唑（NBT）光还原法，对六月霜中提取物清除超氧离子自由基O-·2的效果进行了测定。结果显示，六月霜提取物对超氧离子自由基有较强的清除效果，清除效果与提取物中黄酮浓度有关，当黄酮浓度达到一定值时，对O-·2的清除效果可高达88．41％。提取物与抗坏血酸（VC）进行了对照实验，结果显示其对O-·2的清除能力比VC高。六月霜提取物在VC－CU2+－H2O2体系中，对OH·自由基的清除效果的研究显示，最高清除率为84．02％。
The superoxide free radical (o)scavenging capacity of Artemisia anomala S.Moore was studied by nitro blue telrazolium (NBT) photo-ueduction.The results showed that the extract from Artemisia anomala S.Moore had strong scavenging effect on superoxide free radical.The seavenging effect was related to the content of the flavonoids.When the concentration of the flavonoids in extract is high enough it had strong scavenging rate as 88.41 % .Using the models of VCCu2+-H2O2 for hydroxyl radical (OH· ).the scavenging capacity of the extract of Artemisia anomala S.Moore on OH· was investigated.The maximum scavenging capacity on hydroxyl radical was 84.02%.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2000年第7期31-34,共4页
Food Science
关键词
六月霜
提取物
清除
超氧离子自由基
Artemisia anomala.S.Moore Extract Scavenge Superoxide free radical Hydroxyl free radical
