红景天超临界CO_2提取物抗氧化作用研究  

Antioxidant Effect of Extract from Rodiola by Supercritical CO_2

作　　者：龚钢明[1] 王化田[1] 荣绍丰[1] 孙晔[1] 

机构地区：[1]上海应用技术学院生物与食品工程系,上海200235

出　　处：《食品工业》2007年第4期13-15,共3页The Food Industry

摘　　要：对红景天超临界CO_2提取物抗氧化作用进行研究。采用二苯代苦味酰基自由基分析法、邻苯三酚自氧化法、过氧化氢检测法和过氧化值测定法,测定了红景天超临界CO_2提取物对二苯代苦味酰基自由基、超氧阴离子和羟基自由基的清除能力以及对油脂过氧化作用的影响。结果表明:红景天超临界CO_2提取物具有明显清除自由基的能力,对猪油,菜油有较强的抗氧化作用。The antioxidant effects of extract from rodiola were studied .The scavenging capacities of extract of rodiola on 2,2-diphenyl-l-picrylhydrazyl, superoxide, hydroxyl free radical were assayed. The results showed the extract of rodiola had character of scavenging 2,2-diphenyl- 1-picrylhydrazyl, superoxide, hydroxyl free radical and definite antioxidant effects on rapeseed oil, lard.

关 键 词：红景天 抗氧化 自由基 

分 类 号：R285[医药卫生—中药学]