| 牛蒡多酚的提取及清除DPPH自由基的研究 |
| |
| 引用本文： | 滕道祥,马利华,秦卫东.牛蒡多酚的提取及清除DPPH自由基的研究[J].安徽农业科学,2010(25):13703-13704,13706. |
| |
| 作者姓名： | 滕道祥 马利华 秦卫东 |
| |
| 作者单位： | 徐州工程学院数理学院,江苏徐州,221008;徐州工程学院食品学院,江苏徐州,221008 |
| |
| 基金项目： | 江苏省高校自然科学基金项目 |
| |
| 摘 要： | 目的]提取牛蒡多酚,并进行抗氧化性试验。方法]采用不同预处理方法处理牛蒡,并提取牛蒡多酚物质;采用电子顺磁共振技术（EPR）,分别检测不同浓度牛蒡多酚对DPPH自由基的清除作用。结果]Vc浸泡处理后,牛蒡多酚提取率最高;牛蒡多酚浓度与清除效用呈线性关系,其半数清除率EC50为202.04μg/ml。结论]Vc浸泡处理后的牛蒡多酚在一定浓度范围内具明显的清除DPPH自由基作用。EPR检测自由基方法快速、灵敏。
|
| 关 键 词： | 多酚 自由基 电子顺磁共振 |
Study on Extract of AIP and Scavenging Effects of DPPH Free Radical |
| |
| TENG Dao-xiang et al.Study on Extract of AIP and Scavenging Effects of DPPH Free Radical[J].Journal of Anhui Agricultural Sciences,2010(25):13703-13704,13706. |
| |
| Authors: | TENG Dao-xiang |
| |
| Institution: | TENG Dao-xiang et al (College of Mathematics , Physical Sciences,Xuzhou Institute of Technology,Xuzhou,Jiangsu 221008) |
| |
| Abstract: | Objective]Polyphenols of Arctum lappa L were extracted and the antioxidant activity experiment was conducted.Method]Polyphenols of Arctum lappa L was treated with processing method.And polyphenols were extracted.The effects of different concentration of AIP on cleaning DPPH free radical with EPR were studied.Result]The concentration of AIP was the highest after soaking of Vc.There was dose-effect relationship between the concentration and the scavenging effects.EC50 was 202.04 μg/ml.Conclusion]AIP after soaking of Vc had obvious effect on cleaning DPPH free radical within concentration limits.EPR technique was rapid and sensitive. |
| |
| Keywords: | Polyphenols Free radical EPR |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
