沈阳农业大学学报2012，Vol.43Issue(2)：179-183,5.
富硒蛹虫草水浸提物的体外抗氧化活性研究
In Vitro Evaluation of Antioxidant Activities of Aqueous Extracts from Selenium-enriched Cultured Mycelia and Fruit Body of Cordyceps militaris
摘要
Abstract
Aqueous extracts from Selenium-enriched cultured mycelia and fruit body of Cordyceps militaris were tested in vitro for their antioxidant ability in different systems. The hydroxyl free radical scavenging of extracts under optimized conditions of Fenton system were studied. The scavenging activities on superoxide were tested by pyrogallol autooxidation reaction. Comparison for reducing power was run in potassium hexacyanoferrate (III) reduction. The results showed that in the different antioxidant systems, extract gave a dose-dependant effect antioxidation activities. Selenium polysaccharide from fruiting body possessed the strongest antioxidant capacity. Hydroxyl radicals scavenging capacity is 6 times more than regular mycelium Polysaccharides. After 90 s superoxide anion scavenging rate was equal to BHT, autoxidation inhibition rate remained at 27%. At a concentration of 50 mg -mL-1A-rah reducing power reached 0.886. Selenium enriched fruiting body extract antioxidant ability of Cordyceps extracts antioxidant capacity could be enhanced.关键词
蛹虫草/富硒/羟自由基/邻苯三酚/还原能力/抗氧化Key words
Cordyceps militaris L/ selenium-enrich/ hydroxyl radical/ pyrogallol autooxidation/ reducing power/ antioxidant分类
生物科学引用本文复制引用
孙军德,侯静,杨逸,王鹤..富硒蛹虫草水浸提物的体外抗氧化活性研究[J].沈阳农业大学学报,2012,43(2):179-183,5.基金项目
辽宁省自然科学基金项目(20102196) （20102196）
沈阳市科技局大型仪器共事服务项目(090048) （090048）
