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Table 10 Regression coefficients of the predicted quadratic polynomial model for response variables (MUFA (OA%)) in urea inclusion fractionation experiment of J. curcas seed oil

From: Selectively increasing of polyunsaturated (18:2) and monounsaturated (18:1) fatty acids in Jatropha curcas seed oil by crystallization using D-optimal design

Variables

Coefficients (ß), MUFA (OA%) (Y 7 )

T

P

Notability

Intercept

52.35

1.43

0.3118

 

Linear

    

X 1

1.40

1.26

0.2940

 

X 2

-1.07

0.72

0.4218

 

X 3

0.78

0.38

0.5571

 

Quadratic

    

X 11

-8.33

9.08

0.0167

**

X 22

0.71

0.089

0.7728

 

X 33

1.58

0.43

0.5281

 

Interaction

    

X 12

-1.68

1.47

0.2604

 

X 13

0.39

0.082

0.7821

 

X 23

-1.89

1.68

0.2315

 

R 2

0.61

   
  1. Notes: ** P < 0.05; *** P < 0.01. T: F test value.
  2. See Table 7 for a description of the abbreviations.