Table 6 ANOVA for response surface quadratic model

Model

1.392E + 006

9

1.546E + 005

6.88

0.0029

Significant

A-pH

4.010E + 005

1

4.010E + 005

17.83

0.0018

B-Maltose

1.758E + 005

1

1.758E + 005

7.82

0.0189

C-NaH₂PO₄

44.14

1

44.14

1.963E-003

0.9655

AB

93312

1

93312

4.15

0.069

AC

3.925E + 005

1

3.925E + 005

17.46

0.0019

BC

5000

1

5000

0.22

0.6474

A²

2.075E + 005

1

2.075E + 005

9.23

0.0125

B²

5628.9

1

5628.9

0.25

0.6277

C²

1.483E + 005

1

1.483E + 005

6.59

0.0280

Residual

2.249E + 005

10

22485.08

Lack of fit

1.715E + 005

5

34307.37

3.22

0.1127

Not significant

Pure error

53314

5

10662.80

Cor total

1.617E + 006

19