Table 7 ANOVA results of the optimization of betacyanins, betaxantins and total betalains extraction

Model

403,400

22.44

0.0020

56,224.42

63.84

 < 0.0001

711,900

36.85

 < 0.0001

X₁

14,619.41

7.32

0.0304

14,652.11

149.74

 < 0.0001

58,543.02

27.27

0.0012

X₂

9611.73

4.81

0.0644

1286.67

13.15

0.0084

3865.04

1.19

0.2216

X₃

23,920

119.73

 < 0.0001

25,450.85

260.10

 < 0.0001

420,700

195.97

 < 0.0001

X₁X₂

11,491.28

5.75

0.0476

1683.16

17.20

0.0043

21,970.27

10.23

0.0151

X₁X₃

1.48

0.0007

0.9791

3973.86

40.61

0.0004

3822

1.78

0.2239

X₂X₃

12,739.27

6.38

0.0395

192.47

1.97

0.2035

16,063.49

7.48

0.0291

X₁²

1694.81

0.8483

0.3877

108.29

1.11

0.3277

946.26

0.44

0.5280

X₂²

78,007.20

39.05

0.0004

6160.02

62.95

 < 0.0001

128,000

59.63

0.0001

X₃²

6468.23

3.24

0.1150

760.68

7.77

0.0270

11,665.64

5.43

0.0525

Residual

13,985.14

684.95

15,027.18

Lack of Fit

13,642.36

15.92

0.0602

582.56

2.28

0.3329

14,209.92

6.95

0.1305

Pure Error

342.78

102.39

817.26

Corr Total

417,400

56,909.3

726,900

R²

0.9665

0.9880

0.9793

Adj R²

0.9234

0.9725

0.9527

Pred R²

0.7498

0.9132

0.8488

Adeq precision

16.6336

25.9465

21.1313

C.V. %

9.37

2.75

5.54