Production of Chemoenzymatic Catalyzed Monoepoxide Biolubricant: Optimization and Physicochemical Characteristics

Table 3

Regression coefficients of the predicted quadratic polynomial model for response variables of the yield% of MEOA.

Variables	Coefficients (𝛽), yield% of MEOA (Y1)	T	P	Notability
Intercept	87.53	8.22	0.0034	***
Linear
X1	−2.82	4.91	0.0575
X2	−4.50	10.07	0.0131	**
X3	−0.14	0.010	0.9219
Quadratic
X11	−9.06	10.82	0.0110	**
X22	−5.43	5.41	0.0485	**
X33	−9.81	21.03	0.0018	***
Interaction
X12	−9.74	25.22	0.0010	***
X13	−7.14	12.99	0.0069	***
X23	−7.80	12.83	0.0072	***
R^2	0.90

Notes: X₁ = amount of H₂O₂; X₂ = catalyst Novozym 435; X₃ = reaction time;
** 𝑃<0.05; ***𝑃<0.01. T: F test value.
See Table 2 for a description of the abbreviations.