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).