穿破石总黄酮抗氧化性的研究  

Antioxidant activity of total flavonoids from Radix Cudraniae

作　　者：许丹妮[1] 梁云贞[1] 韦方立[1] XU Dan-ni;LIANG Yun-zhen;WEI Fang-li(Guangxi Normal University of Nationalities,Chongzuo 532200,Guangxi,China)

机构地区：[1]广西民族师范学院

出　　处：《湖北农业科学》2019年第11期93-96,共4页Hubei Agricultural Sciences

基　　金：2017年度广西壮族自治区中青年教师基础能力提升项目(2017KY0843);2018年度崇左市科技计划项目(崇科FA2018018);广西民族师范学院校级立项项目(2014YB001);广西民族师范学院应用化学优势特色重点学科立项项目(ZDXK-C2012003)

摘　　要：为了探讨穿破石(Radix Cudramiae)总黄酮抗氧化活性,采用不同方法(Fenton法、邻苯三酚自氧化法和DPPH法)测定了穿破石总黄酮的抗氧化活性,以维生素C为阳性对照。结果表明,穿破石总黄酮清除羟自由基、超氧阴离子自由基和DPPH自由基的能力比维生素C强,其EC50分别为2.33、2.15、0.27μg/mL,维生素C清除羟自由基、超氧阴离子自由基和DPPH自由基的EC50分别为12.88、7.76、11.23μg/mL。In order to study the antioxidant activity of total flavonoids from Radix Cudraniae, taking vitamin C as positive control, the antioxidant activity of total flavones from Radix Cudraniae was determined by different methods, including Fenton reaction, self-oxidation of 1, 2, 3-phentriolassay method and DPPH radical-scavengings. The results show that the flavonoids from Radix Cudraniae have very strong scavenging capabilities for hydroxyl radical, superoxide anion and DPPH free radical, their EC50 values are 2.33, 2.15 and 0.27 μg/mL, respectively, and the EC50 of vitamin C scavenging capabilities for hydroxyl radical, superoxide anion and DPPH free radical are 12.88, 7.76 and 11.23 μg/mL, respectively.

关 键 词：穿破石(Radix Cudramiae) 总黄酮 抗氧化性 

分 类 号：Q949.737.4[生物学—植物学]