Table 5. Analysis of variance (ANOVA) for the experimental results of the CCD quadratic model for IPS production the mycelium of G. lucidum strain QRS_5120.

Source	Sum of Squares	DF	Mean Square	F Value	Prob > F
Model	3.935181818	9	0.437242424	34.47789725	<0.0001*	significant
A: pH	3.844	1	3.844	303.1111111	<0.0001*	significant
B: Glucose	0.009	1	0.009	0.709677419	0.4192
C: Agitation	0.004	1	0.004	0.315412186	0.5867
A2	0.030056818	1	0.030056818	2.370071685	0.1547
B2	0.005681818	1	0.005681818	0.448028674	0.5184
C2	0.025056818	1	0.025056818	1.975806452	0.1901
AB	0.005	1	0.005	0.394265233	0.5441
AC	0.02	1	0.02	1.577060932	0.2377
BC	0.005	1	0.005	0.394265233	0.5441
Residual	0.126818182	10	0.012681818
Lack of Fit	0.098484848	5	0.01969697	3.475935829	0.0989	not significant
Pure Error	0.028333333	5	0.005666667
Cor Total	4.062	19
Std. Dev. = 0.11261357902943		R2 = 0.96877937424466		Adeq Precision = 17.969511850411
Mean = 0.83		Adjusted R2 = 0.94068081106486

* Significant value.