Research Article

Microbial Decolorization of Triazo Dye, Direct Blue 71: An Optimization Approach Using Response Surface Methodology (RSM) and Artificial Neural Network (ANN)

Figure 5

Three-dimensional plots showing the effect of (a) pH and yeast extract, (b)yeast extract and dye concentration, and (c)pH and dye concentration and their mutual effect on the decolorization of Direct Blue 71 dye. Other variables are constant: pH (6.645), yeast extract (3 g/L), and dye concentration (150 ppm).
(a)
(b)
(c)