Estimation The Scavenging Activities of Ascorbic Acid, Uric Acid, Gallic Acid and GSH to DPPH Radical

The “?,?-diphenyl-?-picrylhydrazyl radical (DPPH)” method from the estimation methods to determine the antioxidants activity in vitro, through the lowering the absorbance of DPPH with color changing from violet into yellow with increasing the strength of antioxidants activity. So, the results of this study show the uric acid is the strongest scavenging, then ascorbic acid when compared with other compounds used. But the reduced glutathione is the weakest although has acidic hydrogen.