Optimization of Xylanase Production from Aspergillus foetidus in Soybean Residue

Table 3

Analysis of variance (ANOVA) for the model regression 1.

Source	SS	DF	MS	-value	value
Model ^1	167.53	9	18.61	5.87	0.0147
, agitation	1.55	1	1.55	0.49	0.5073
, Temp.	6.27	1	6.27	1.98	0.2027
, pH	26.56	1	26.56	8.37	0.0232
	3.75	1	3.75	1.18	0.3130
	1.11	1	1.11	0.35	0.5730
	26.81	1	26.81	8.45	0.0227
	12.81	1	12.81	4.04	0.0844
	10.68	1	10.68	3.37	0.1092
	101.05	1	101.05	31.86	0.0008
Residual	22.20	7	3.17
Lack of fit	17.22	5	3.44	1.38	0.4700
Pure error	4.98	2	2.49
Total	189.73	16

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