脑脉康不同极性配比提取物的体外抗氧化研究

Study on Anti-oxidation Activity in Vitro of Naomaikang Extracts in Different Polarity Proportion

目的:初步探讨脑脉康不同极性配比提取物的体外抗氧化的作用;方法:采用分光光度法分别测定脑脉康不同极性配比提取物的总还原性,以及对DPPH自由基、超氧阴离子自由基的清除作用;结果:分别得到了脑脉康不同极性配比提取物的总还原性曲线以及DPPH自由基、超氧阴离子抑制率曲线,并得到不同提取物清除50%DPPH自由基和50%超氧阴离子自由基时的浓度。结论:脑脉康不同极性配比提取物均有一定抗氧化性。

Objective ： Discuss the anti - oxidation effects in vitro of Naomaikang extracts of different polarity proportion. Methods ： The UV spectrophotometry was used to determine the anti - oxidation effects of Naomaikang extracts with different composition. The anti - oxidation effects in vitro were analyzed hy different assay such as total reducing power ,DPPH radical scavenging assay and superoxide radical scavenging assay. Results ： Obtain the curve of total reducing power , DPPH radical scavenging and superoxide radical scavenging respectively. The inhibitory concentration of 50% DPPH radical and superoxide radical were obtained together. Conclusion ： Naomaikang extracts of different polarity proportion have antioxidation in vitro.