Table 2.

Estimated regression model of the relationships among response variables (yield, TPC, TFC, and DPPH of H. erinaceus extracts) and independent variables (X₁, X₂, X₃).

Variable	p-Value
	Yield	TPC	TFC	DPPH
β0	< 0.001	< 0.001	> 0.001	< 0.001
X1	< 0.001	< 0.001	> 0.001	< 0.001
X2	0.0352	< 0.001	> 0.001	< 0.001
X3	< 0.001	< 0.001	> 0.001	< 0.001
X12	0.0312	< 0.001	> 0.001	< 0.001
X22	0.217	< 0.001	> 0.001	< 0.001
X32	0.281	< 0.001	> 0.001	< 0.001
X1X2	3.36	< 0.001	> 0.001	< 0.001
X1X3	10.3	< 0.001	> 0.001	< 0.001
X2X3	12.5	< 0.001	> 0.001	< 0.001