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Abstract
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Electrochemical evaluations are useful for the determination of antioxidant activity for example, their application as a rapid evidence of the antioxidant capacity of many organic compounds. The oxidation potentials measured by cyclic voltammetry (CV) used to compare the antioxidant strength of phenolic acids, flavonoids, cinnamic acids as natural compounds in medicinal plants. [1] On the other hand, it is clear that medicinal plants used in the traditional medicine and healing are one of the sources of antioxidants. The dietary intake of antioxidants plays an important role in the protection of the human organism against free radicals. Free radicals or reactive oxygen species generated by our body by various endogenous systems by exposure to different physiochemical conditions or pathological states. In the normal condition and for proper physiological function, a balance between free radicals and antioxidants is necessary [2]. Artemisia absinthium L. is an important perennial shrubby plant that has been widely used for the treatment of several ailments. Traditionally, A. absinthium has always been of pharmaceutical and botanical importance and used to manage several disorders including hepatocyte enlargement, hepatitis, gastritis, jaundice, wound healing, splenomegaly, dyspepsia, indigestion, flatulence, gastric pain, anemia, and anorexia. [3]. In the present work the electrochemical oxidation of Artemisia absinthium L. extract has been investigated by cyclic voltammetry and differential pulse voltammetry techniques in the biological pH at the surface of glassy carbon electrode at various concentrations and scan rates. The results revealed that the extract had an irreversible redox reaction. Also our results show that Artemisia absinthium L. extract oxidize at low potentials in comparison of quercetin, gallic acid and salicylic acid as a standard antioxidants. Antioxidant activities of this extract was evaluated using the 2,2-diphenyl-2-picrylhydrazyl (DPPH) radic
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