Table 3: Regression coefficients of the predicted quadratic polynomial model for response variables of the yield% of MEOA.

VariablesCoefficients ( 𝛽 ), yield% of MEOA (Y1)TPNotability

Intercept87.538.220.0034 ***
Linear
X1−2.824.910.0575
X2−4.5010.070.0131 **
X3−0.140.0100.9219
Quadratic
X11−9.0610.820.0110 **
X22−5.435.410.0485 **
X33−9.8121.030.0018 ***
Interaction
X12−9.7425.220.0010 ***
X13−7.1412.990.0069 ***
X23−7.8012.830.0072 ***
R20.90

Notes: X1 = amount of H2O2; X2 = catalyst Novozym 435; X3 = reaction time;
** 𝑃 < 0 . 0 5 ; *** 𝑃 < 0 . 0 1 . T: F test value.
See Table 2 for a description of the abbreviations.