Synthesis, Characterization and Antioxidant Activity of Fe(III)-Valex Complex

Abstract

Iron (III) complex with a mixture of hydrolysable tannins from the fruits of Valonia Oak (Quercus ithaburensis sp. macrolepsis) known as Valex was synthesized and characterized using various techniques. Stoichiometry of the complex was determined to be M2L at pH 4.4 with the stability constant (K) of 1.5 ´ 108 L2mol-2. The antioxidant, antimicrobial and antifungal activity of the Fe(III)-Valex complex was studied. The Fe(III)-Valex complex was found to have antioxidant activity but did not show any antimicrobial and antifungal activity against the tested microorganisms.