Table 5: Regression coefficients of the predicted quadratic polynomial model for response variables of the IV mg/g for the MEOA.

Variables

Coefficients (), IV mg/g (Y_{3})

T

P

Notability

Intercept

56.24

3.42

0.0489

**

Linear

X_{1}

−18.82

21.45

0.0017

***

X_{2}

−8.91

3.87

0.0849

X_{3}

−10.57

5.47

0.0474

**

Quadratic

X_{11}

8.06

0.84

0.3865

X_{22}

4.15

0.31

0.5935

X_{33}

−4.41

0.42

0.5369

Interaction

X_{12}

11.59

3.50

0.0985

X_{13}

10.81

2.92

0.1259

X_{23}

5.42

0.61

0.4580

R^{2}

0.79

Notes: X_{1 }= amount of H_{2}O_{2}; X_{2 }= catalyst Novozym 435; X_{3 }= reaction time;
**
; ***. T: F test value. See Table 2 for a description of the abbreviations.