玫瑰花鞣质提取物体外抗氧化的活性研究

Study on Antioxidative Activity of Tannin Extraction from Rosa Rugosa

目的：研究玫瑰花鞣质提取物体外抗氧化活性的能力。方法：采用Fenton体系和邻苯三酚自氧化法评价了玫瑰花鞣质的体外抗氧化能力,采用多元线性回归对鞣质浓度与抗氧化活性相关性进行了分析。结果：玫瑰花鞣质提取物浓度在0.05~4.00μg/mL范围内与对—OH和O2-清除能力呈量效关系,其最大清除率分别为62.85%和72.67%;浓度对抗氧化能力的线性回归方程为Y=-0.517＋1.732X1-0.903X2。结论：玫瑰花鞣质具有较强的抗氧化能力,是1种天然有效的抗氧化剂。

Objective： To study the antioxidant activity of tannin extraction from Rosa Rugosa. Methods： The antioxidative activity was evaluated by hydroxyl radical system and pyrogallol autooxidation methods. The correlation relationship was surveyed by multiple linear regression analysis. Results： The tannin concentrations were bewteen 0,05 and 4.00 μg/mL, it showed correlation relationship for -OH and O2 clearance abilities. The linear regression equation of concentrations against antioxidative activity was Y=- 0.517＋ 1.732X1- 0.903X2,. Conclusion： The tannin from Rosa Rugosa shows strong antioxidative activities and is an effective natural antioxidant.