Optimized Biotransformation of Icariin into Icariside II by β-Glucosidase from Trichoderma viride Using Central Composite Design Method

Table 3

ANOVA of the quadratic regression model for conversion rate of ICA.

Source	SS	MS	DF		Prob. >
Model	1249.94	138.88	9	14.24	0.0001
	569.58	569.58	1	58.40	<0.0001
	0.32	0.32	1	0.032	0.8606
	20.07	20.07	1	2.06	0.1820
	28.24	28.24	1	2.90	0.1197
	43.85	43.85	1	4.50	0.0600
	2.84	2.84	1	0.29	0.6010
	301.53	301.53	1	30.91	0.0002
	290.22	290.22	1	29.76	0.0003
	13.45	13.45	1	1.38	0.2675
Residual	97.54	9.75	10
Lack of fit	95.65	19.13	5	50.78	0.0003
Pure error	1.88	0.38	5
Total	1347.48		19