Fig. 1.
Statistical analysis of decolorization of tartrazine (TART) and Acid Orange 63 (AO63) in relation to temperature (35 and 60 °C), type of mediators (acetosyringone, AS; syringaldehyde, SA; methyl syringate, MeS) and mediator concentration (0.1 and 0.5 mM). A: Effect of the temperature on TART and AO63 decolorization (%) obtained with the mean of three mediators. B: Effect of the mediators on TART and AO63 decolorization (%) obtained by using the mean of both temperatures. C: Effect of the concentration of the three mediators on decolorization of both dyes (%) regardless mediators and dyes. Results are the means of triplicate measurements with standard errors shown.