مشخصات پژوهش

Antioxidants help organisms deal with oxidative stress, caused by free radical damage [1]. Such electrochemical determination is fast and cheap and allows making measurements under a variety of experimental conditions. The accuracy of the electrochemical measurements is the same for all the compounds, irrespective of their scavenging activity, the opposite of what occurs in the DPPH• test [1-3]. In the present study the voltammetric response of the Leaves and flowers of Alcea setosa(Boiss.) Alef. extract has been investigated in the aqueous solution and various concentrations and scan rates at biological pH. On the other hand the cyclic voltammogram 2,2-diphenyl-1-picrylhydrazyl | 2,2-diphenyl-1-picrylhydrazin (DPPH˙ | DPPH) redox couple has been recorded in the absence and presence of various concentration of extract for evaluation of its antioxidant activity. The results show the good antioxidant activity of the extract and the electrochemical behavior of the constituents in it at glassy carbon electrode.