Modeling, Simulation, and Kinetic Studies of Solvent-Free Biosynthesis of Benzyl Acetate

Table 3

Results of significance test on the nonlinear model coefficients, standard errors, 𝑇 statistics, and 𝑃 values for the lipase activity (coded form).

SI. no	Terms	Standard coefficient	Error coefficient	𝑇	𝑃
1	Constant	94.9260	0.5609	169.225	0.000
2	𝑋1	−0.4533	0.3588	−1.264	0.230
3	𝑋2	3.3772	0.3588	9.413	0.000
4	𝑋3	−0.3994	0.3588	−1.113	0.287
5	𝑋4	5.4272	0.3588	15.127	0.000
6	𝑋^21	−2.1741	0.9492	−2.290	0.041
7	𝑋^22	−4.8891	0.9492	−5.150	0.000
8	𝑋^23	−1.8891	0.9492	−1.990	0.070
9	𝑋^24	−6.8891	0.9492	−7.257	0.000
10	𝑋1𝑋2	−0.2244	0.3805	−0.590	0.566
11	𝑋1𝑋3	0.5719	0.3805	1.503	0.159
12	𝑋1𝑋4	−0.4806	0.3805	−1.263	0.231
13	𝑋2𝑋3	−0.5044	0.3805	−1.325	0.210
14	𝑋2𝑋4	−2.5869	0.3805	−6.798	0.000
15	𝑋3𝑋4	−0.3331	0.3805	−0.875	0.399

SS = 1.522, 𝑅-Sq = 98.6%, 𝑅-Sq(adj) = 97.1%.