Chitinase from a Novel Strain of Serratia marcescens JPP1 for Biocontrol of Aflatoxin: Molecular Characterization and Production Optimization Using Response Surface Methodology

Table 3

Test of significance for regression coefficient.

Model; term	Coefficient; estimate	Standard; error	𝑡 value	𝑃 value
Intercept	13.2343	0.2384	55.514	0
𝐴	0.8496	0.1287	6.599	0
𝐵	4.2096	0.1287	32.696	0
𝐶	0.3279	0.1287	2.547	0.022
𝐷	−1.5237	0.1287	−11.835	0
𝐴∗𝐴	−0.5053	0.1179	−4.284	0.001
𝐵∗𝐵	−0.1903	0.1179	−1.614	0.126
𝐶∗𝐶	−0.2153	0.1179	−1.826	0.087
𝐷∗𝐷	−0.6066	0.1179	−5.143	0
𝐴∗𝐵	0.0756	0.1577	0.48	0.638
𝐴∗𝐶	−0.1394	0.1577	−0.884	0.390
𝐴∗𝐷	0.0769	0.1577	0.488	0.632
𝐵∗𝐶	0.0381	0.1577	0.242	0.812
𝐵∗𝐷	−0.1756	0.1577	−1.114	0.282
𝐶∗𝐷	−0.1656	0.1577	−1.05	0.309