Enhanced xylitol production using non-detoxified xylose rich pre-hydrolysate from sugarcane bagasse by newly isolated Pichia fermentans

Table 2 ANOVA for quadratic model

Source	DF	Seq SS	Adj SS	Adj MS	F value	p value
Regression	14	3685.87	3685.87	263.28	77.1	0
Linear	4	778.17	778.17	194.54	56.97	0
X1	1	587.02	587.02	587.02	171.9	0
X2	1	120.4	120.4	120.4	35.26	0
X3	1	65.19	65.19	65.19	19.09	0.001
X4	1	5.56	5.56	5.56	1.63	0.223
Square	4	2179.18	2179.18	544.79	159.54	0
X1 * X1	1	158.66	0.58	0.58	0.17	0.685
X2 * X2	1	1106.41	1532.83	1532.83	448.87	0
X3 * X3	1	698.9	825.68	825.68	241.79	0
X4 * X4	1	215.2	215.2	215.2	63.02	0
Interaction	6	728.52	728.52	121.42	35.56	0
X1 * X2	1	12.53	12.53	12.53	3.67	0.076
X1 * X3	1	350.25	350.25	350.25	102.57	0
X1 * X4	1	359.1	359.1	359.1	105.16	0
X2 * X3	1	0.02	0.02	0.02	0.01	0.936
X2 * X4	1	3.22	3.22	3.22	0.94	0.348
X3 * X4	1	3.39	3.39	3.39	0.99	0.336
Residual error	14	47.81	47.81	3.41
Lack-of-fit	10	33.28	33.28	3.33	0.92	0.588
Pure error	4	14.53	14.53	3.63
Total	28	3733.67

DF = Degree of freedom; Seq SS = sequential sum of square; Adj SS = adjusted sum of square; Adj MS = adjusted mean square; F = variance ratio (Fisher F-value); p = probability value

ISSN: 2731-3654