A Statistical Approach for Optimization of Simultaneous Production of β-Glucosidase and Endoglucanase by Rhizopus oryzae from Solid-State Fermentation of Water Hyacinth Using Central Composite Design

Table 4

Analysis of variance for endoglucanase production.

Source	Sum of squares	df	Mean square	F value	P value	Prob > F
Model	443015	9	49223.9	39.1325	<.0001	significant
A-sub. conc	103453	1	103453	82.2436	<.0001
B-pH	54184.2	1	54184.2	43.0758	<.0001
C-temp	2071.07	1	2071.07	1.64648	.2284
AB	7812.5	1	7812.5	6.21085	.0319
AC	0	1	0	0	1
BC	312.5	1	312.5	0.24843	.629
A^2	26670.3	1	26670.3	21.2026	.001
B^2	201171	1	201171	159.929	<.0001
C^2	88522.3	1	88522.3	70.3743	<.0001

R²−0.9724, Adj R²0.9475, Pred R²−0.7892, C.V. %  −12.39.