Regression
Coefficient

Anthocyanins
Yield

β0

143.6

b1

+3.00**

b2

+8.00

b3

+0.25**

b11

-2.50**

b12

+1.50

b22

+1.50

b13

-11.80

b23

-5.30

b33

-7.30**

R2

0.9673

P value

0.0002***

**significant at 0.01 level *** significant at 0.001 level
Table 3: Regression coefficients, R2, and P values for dependent variable for anthocyanins extraction.