磁性分离长白红景天提取物中抗氧化组分  

Magnetic Separation of Antioxidant Components from Rhodiola angusta Nakai Extract

作　　者：尹秀梅[1] 张敬东 王思宏 YIN Xiu-mei;ZHANG Jing-dong;WANG Si-hong(College of Pharmacy,Yanbian University,Jilin Yanji 133002;Analysis and Inspection Center,Yanbian University,Jilin Yanji 133002,China)

机构地区：[1]延边大学药学院,吉林延吉133002 [2]延边大学分析测试中心,吉林延吉133002

出　　处：《广州化工》2020年第3期106-108,共3页GuangZhou Chemical Industry

基　　金：国家自然科学基金资助(No:21964017,21365023)

摘　　要：为从复杂中草药基质中筛选和分离有效成分,利用磁性材料的优点,配体垂钓,磁性分离长白山地区景天科植物长白红景天(黄酮含量为:49.6 mg·g^-1)中具有DPPH(1,1-二苯基-2-三硝基苯肼)清除能力的物质,其提取物浓度为0.248 mg·mL^-1时,DPPH清除率达到90.34%,磁性分离后提取物的DPPH清除率18.09%,说明硼酸功能化磁性材料可以选择吸附长白红景天提取物中抗氧化组分。To screen and isolate effective components from complex matrices of Chinese herbal medicines,using the advantages of magnetic materials to carry out ligand fishing,the magnetic separation of DPPH(1,1-diphenyl-2-picrylhydrazyl)scavenging substances from R.angusta Nakai,a kind of Crassulaceae in Changbai Mountain region(its content of flavonoids was 49.6 mg·g-1),was investigated.When the concentration of extract was 0.248 mg·mL-1,DPPH scavenging rate reached 90.34%,and DPPH scavenging rate after magnetic separation Rhodiola angusta Nakai extract was 18.09%.This indicated that the boric acid functionalized magnetic materials could selectively adsorb DPPH scavenging components from R.angusta Nakai extract.

关 键 词：长白红景天 黄酮 抗氧化组分 磁性分离 

分 类 号：O656.9[理学—分析化学]