Skip to main content

Table 3 Estimated coefficients for the fitted second-order polynomial model for the amount of lupeol and stigmasterol

From: Improvement and prediction of the extraction parameters of lupeol and stigmasterol metabolites of Melia azedarach with response surface methodology

Term

Regression coefficients

 

Stigmasterol

 

Lupeol

Intercept

5.69

 

1.62

Linear

   

 β1

-0.5724**

 

1.58*

 β2

-0.0919

 

1.30*

 β3

-0.3817

 

0.0690

Interaction

   

 β12

0.8318**

 

0.6421**

 β13

0.1235

 

-0.2761

 β23

-1.55*

 

0.4979***

Quadratic

   

 β11

-1.16*

 

0.4220**

 β22

-1.20*

 

0.6802*

 β33

-0.2425

 

-0.2572

  1. * p < 0.01, ** 0.01 ≤ p < 0.05, and *** 0.05 ≤ p < 0.1
Back to article page

BMC Biotechnology

ISSN: 1472-6750

Contact us