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Table 1 Effect of inoculum size, nutrients, initial pH and temperature on bioflocculant production

From: Bioflocculation of pollutants in wastewater using flocculant derived from Providencia huaxiensis OR794369.1

Inoculum size (%)

%FA

Carbon source

%FA

Nitrogen source

%FA

pH

%FA

Temperature (oC)

%FA

1

60 ± 3.8a

Starch

93 ± 5.3a

Peptone

71 ± 8.9a,b

4

68 ± 3.2a

20

73 ± 2.1a,b

2

70 ± 3.1a

Glucose

66 ± 6.2b

Urea

74 ± 3.8b

5

70 ± 4.2a

25

78 ± 2.3b

3

85 ± 6.2b

Maltose

90 ± 4.3a

Yeast extract

78 ± 9.0b

6

92 ± 0.3c

30

92 ± 0.2c

4

83 ± 9.0b

Sucrose

63 ± 5.8b

Ammonium sulphate

79 ± 7.1b

7

80 ± 3.2b

35

80 ± 0.8b

  

Fructose

85 ± 7.5a

Casein

83 ± 4.7b

8

81 ± 1.0b

40

76 ± 2.1b

  

Lactose

37 ± 1.2c

Mixed nitrogen sources (yeast extract, urea and ammonium sulphate

66 ± 6.2a

9

73 ± 1.3a,b

45

62 ± 1.2a

      

10

45 ± 2.3a

  
  1. The superscripts (a, b and c) show the statistically significant (p < 0.05); similar letters illustrate no statistical difference (p > 0.05)