Table 8 Regression coefficients of the predicted quadratic polynomial model for response variables (yield% of UCF) in urea inclusion fractionation experiment of J. curcas seed oil

Intercept

72.14

11.29

0.0012

***

Linear

X ₁

16.64

70.27

0.0001

***

X ₂

-1.83

0.82

0.3911

X ₃

1.65

0.67

0.4370

Quadratic

X ₁₁

1.97

0.20

0.6662

X ₂₂

-4.18

1.21

0.3038

X ₃₃

3.74

0.96

0.3568

Interaction

X ₁₂

2.46

1.25

0.2965

X ₁₃

2.21

1.04

0.3374

X ₂₃

-0.81

0.12

0.7362

R ²

0.92