Table 3.

Central composite design for multienzyme production under different inlet air relative humidity and initial substrate moisture content conditions.

Run	Levels		Enzymes (IU/g)
	Inlet air relative humidity (%)	Substrate initial moisture (%)	FPase	Endoglu-canase	Xylanase
1	−1 (60)	−1 (60)	0.18	33.9	42.0
2	+1 (80)	−1 (60)	0.15	30.2	42.0
3	−1 (60)	+1 (80)	0.22	34.9	48.6
4	+1 (80)	+1 (80)	0.22	33.4	51.1
5	−1,41 (56)	0 (70)	0.07	35.2	39.2
6	1.41 (84)	0 (70)	0.16	31.2	30.9
7	0 (70)	−1,41 (56)	0.20	30.2	49.8
8	0 (70)	1.41 (84)	0.20	39.3	41.6
9	0 (70)	0 (70)	0.16	34.2	40.9
10	0 (70)	0 (70)	0.13	33.1	38.1
11	0 (70)	0 (70)	0.09	33.4	39.3