Table 7 Box-Behenken design experimental results

Model

0.69

9

0.077

8.75

0.0139

significant

A-Temperature

0.47

1

0.47

53.82

0.0007

B-Time

0.046

1

0.046

5.22

0.0712

 C-MgSO₄

7.424E-004

1

7.424E-004

0.084

0.7830

AB

0.081

1

0.081

9.21

0.0289

AC

0.055

1

0.055

6.31

0.0537

BC

8.417E-003

1

8.417E-003

0.96

0.3726

A²

4.242E-003

1

4.242E-003

0.48

0.5181

B²

0.023

1

0.023

2.67

0.1629

C²

3.247E-004

1

3.247E-004

0.037

0.8551

Residual

0.044

5

8.786E-003

Lack of Fit

0.038

3

0.013

3.99

0.2069

Not significant

Pure Error

6.291E-003

2

3.145E-003

Cor Total

0.74

14

0.0139