However,at high protein concentration(>6.0 mg/ml),the activity became decreasing. The IC50 of scavenging superoxide radical of BWPr from sweet and tartary buckwheat was 4.1mg/ml and 3.2 mg/ml respectively.

• 0mg/ml浓度范围内；随着蛋白液浓度的增加；清除率近乎直线升高；而再增加蛋白液的浓度；清除率增加幅度下降；甜荞蛋白和苦荞蛋白的IC50分别为4.；1mg/ml、3