Optimization of Xylanase Production from Aspergillus foetidus in Soybean Residue

Table 4

Analysis of variance (ANOVA) for the model regression 2.

Source	SS	DF	MS	-value	value
Model ^2	274.80	9	30.53	4.39	0.0319
, agitation	3.79	1	3.79	0.55	0.4844
, Temp.	1.25	1	1.25	0.18	0.6839
, pH	70.78	1	70.78	10.19	0.0152
	0.024	1	0.024	0.007	0.9549
	0.024	1	0.024	0.007	0.9545
	12.16	1	12.16	1.75	0.2274
	4.67	1	4.67	0.67	0.4393
	137.41	1	137.41	19.78	0.0030
	91.73	1	91.73	13.20	0.0084
Residual	48.63	7	6.95
Lack of fit	43.34	5	8.67	3.27	0.2504
Pure error	5.30	2	2.65
Total	323.43	16

Model regression is xylanase activity = ; ; SS, sum of squares; DF, degrees of freedom; MS, mean square. Significance level = 95%.