Table 3.

Statistical analysis of the optimization design for biomass production ofKomagataella pastoris.

Coefficient	Value	SE	P*	t
β0	7.897	5.271	0.185	1.498
x1	0.026	1.092	0.982	0.024
x2	1.124	0.546	0.085	2.059
x3	−0.030	0.226	0.900	−0.131
x1x1	−0.430	0.132	0.017	−3.257
x2x2	−0.169	0.033	0.002	−5.106
x3x3	0.002	0.003	0.413	0.879
x1x2	0.192	0.066	0.027	2.909
x1x3	0.060	0.018	0.017	3.288
x2x3	0.024	0.009	0.041	2.591

x₁ = (NH₄)₂SO_4;x₂ = CMz;x₃ = time.

^*TheP values for regression coefficients in bold characters are significant atP < 0.05.