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Table 5 Full factorial design and experimental results of exo-PG activity in the screening step of A. sojae CBS 10928

From: Efficient polygalacturonase production from agricultural and agro-industrial residues by solid-state culture of Aspergillus sojae under optimized conditions

Trial

Experimental factors

Response

Moisture level (%)

Temperature (°C)

Time (d)

exo-PG activity (U/g)

1

80

24

4

23.6

2

160

24

4

36.4

3

80

30

4

31.6

4

160

30

4

39.6

5

80

24

8

33.9

6

160

24

8

106.0

7

80

30

8

34.1

8

160

30

8

104.2

9 – 10*

120

24

6

69.8 ± 1.8

11 – 12*

120

30

6

108.1 ± 5.9

  1. *The standard variation between the center point repetitions was below 6%.