S.No Process variables  
Initial pH X1 Moisture ratio X2 Incubation time X3 Endo-β-1,4-glucanase activity (U/g)
1 1 1 0 1.267
2 -1 -1 0 0.437
3 0 0 0 1.496
4 1 0 1 2.111
5 0 -1 -1 0.837
6 -1 0 -1 0.378
7 0 0 0 1.326
8 0 1 1 1.948
9 -1 0 1 1.844
10 -1 1 0 0.156
11 0 1 -1 0.459
12 0 0 0 1.126
13 0 -1 1 1.882
14 1 0 -1 0.556
15 1 -1 0 0.378
Table 3: Full factorial Box-Behnken Design for production of cellulase from Bacillus licheniformis and its activity.