Condition   Decolorization (%)24 h Decolorization (%)48 h
Temperature
20°C 32 ± 0.2 51.3 ± 0.5*
30°C 68 ± 0.6 71.7 ± 0.6***
40°C 85 ± 0.7 95 ± 0.5*
50°C 59 ± 0.1 83.5 ± 0.3*
60°C 41 ± 0.3 54.31 ± 0.06*
70°C 35 ± 0.6 47.2 ±  0.6*
80°C 21 ± 0.08 43.2 ± 0.2*
pH
2 Nil Nil
3 Nil Nil
4 42 ± 0.4 61 ± 0.2*
5 48 ± 0.2 66 ± 0.2*
6 74 ± 3.2 92 ± 1.3*
7 95 ± 0.8 99 ± 0.43***
8 47 ± 0.1 74 ± 0.3*
9 8 ± 0.2 10 ± 0.2*
Oxygen
Aerobic 86±7.6 91±2*
Anaerobic 73.96±3.2 92.1 ±1.3***
Dye concentration
50mg/L 62 ± 1.1 88 ± 2.1*
100mg/L 48 ± 3.1 97 ± 1.8***
200mg/L 50 ± 1.1 84 ± 2.2***
400mg/L 35 ± 2.1 86 ± 2.1*
Values are mean of three experiments (±) SEM. Signifi cantly different from control cells at *P < 0.05, ***P < 0.001 by t test, Oneway analysis of variance (ANOVA) with Turkey–Kramer comparison test.
Table 1: Effect of different physicochemical parameters on decolorization: (LB medium, incubated at various time intervals with different temperature, pH, oxygen condition).