Enhanced Production of Cellulase from Pineapple Waste by Response Surface Methodology

Table 6

Analyses of variance (ANOVA) for response surface quadratic model for the production of cellulose.

Source	Sum of square	df	Mean square value	𝐹 value	𝑃 value
Model	54.46	14	3.89	17.23	<0.0001
A-Avicel	4.77	1	4.77	21.13	0.003
B-Soybean cake flour	4.42	1	4.42	19.58	0.0005
C-KH2PO4	6.93	1	6.93	30.72	<0.0001
D-Yeast extract	5.90	1	5.90	26.14	0.0001
AB	0.86	1	0.86	3.79	0.0705
AC	0.11	1	0.11	0.47	0.5044
AD	0.016	1	0.016	0.069	0.7961
BC	1.50	1	1.50	6.65	0.0120
BD	0.076	1	0.076	0.34	0.5713
CD	0.77	1	0.77	3.39	0.0854
A^2	15.47	1	15.47	68.54	<0.0001
B^2	10.33	1	10.33	45.74	<0.0001
C^2	7.59	1	7.59	33.63	<0.0001
D^2	7.59	1	7.59	33.63	<0.0001
Residual	3.39	15	0.23
Lack of fit	3.37	10	0.34	126.47	<0.0001
Pure error	0.013	5	2.66𝐸−003
Cor total	57.85	29