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Bioresources and Bioprocessing

Table 3 Effect of carbon sources on xylanase production from A. tubingensis FDHN1 under SSF

From: Optimization of upstream and downstream process parameters for cellulase-poor-thermo-solvent-stable xylanase production and extraction by Aspergillus tubingensis FDHN1

Carbon source a

Xylanase activity

Protein

Specific activity

Cellulase activity

U/g

mg/g

U/mg

U/g

Controlb

1,875 ± 13

26.84 ± 0.33

69.85 ± 2.86

2.31 ± 0.11

Glucose

1,601 ± 14

28.06 ± 0.79

57.05 ± 1.93

3.68 ± 0.07

Fructose

1,871 ± 11

27.70 ± 1.13

67.54 ± 2.37

2.06 ± 0.14

Sucrose

1,644 ± 10

25.51 ± 0.94

64.44 ± 2.11

2.57 ± 0.06

Xylose

2,267 ± 12

28.61 ± 1.22

79.23 ± 3.40

1.85 ± 0.09

Lactose

1,267 ± 19

24.36 ± 1.05

52.01 ± 1.23

1.63 ± 0.13

Maltose

1,463 ± 12

23.87 ± 0.98

61.29 ± 2.74

3.11 ± 0.13

Mannitol

1,206 ± 19

20.96 ± 0.87

57.53 ± 2.66

2.49 ± 0.08

  1. aSSF was carried using 9 g sorghum straw under optimized physiological conditions (at 5-day incubation, 1:5 (w/v) substrate/moisture ratio, pH 6.0 and 40°C); bthe control medium used was devoid of any carbon source. The data presented are the mean values of three replicates with the standard deviations.
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