compared the ascorbic acid degradation kinetics in a buffer solution of pH 3.5 using conventional and ohmic heating. The kinetics of degradation can be described adequately by a first order model for both conventional and ohmic treatments, but
unlike conventional heating, the temperature dependence of degradation for some ohmic treatments cannot be represented by the Arrhenius relation. Electrode reactions, electrolysis of the solution, as well as reactions between electrode materials and the electrolysis products may all influence the reaction mechanism and the kinetic parameters. These researchers observed a brown color to the buffer solution, indicating the presence of ferric chloride. Insoluble brown deposits were also observed on the electrode surfaces,indicating the possible formation of iron(III) oxide or ferric chloride