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Table 2 The observed and predicted responses of the Box Behnken design

From: Statistical optimization and gamma irradiation on cephalosporin C production by Acremonium chrysogenum W42-I

Run order

pH

Inoculum size (% v/v)

Incubation period (days)

Observed response

Predicted response

1

6.5

1

1

0

2.50

2

9

2.5

1

16

15.63

3

6.5

2.5

3.5

18

19.44

4

6.5

2.5

3.5

19

19.44

5

9

2.5

6

0

0.88

6

6.5

2.5

3.5

20

19.44

7

4

2.5

6

20

19.13

8

4

2.5

1

16

13.87

9

6.5

4

1

0

0

10

6.5

1

6

20

21.25

11

9

1

3.5

17

14.82

12

6.5

2.5

3.5

20

19.44

13

6.5

2.5

3.5

19

19.44

14

4

1

3.5

24

23.07

15

9

4

3.5

16

15.82

16

6.5

4

6

0

1.25

17

4

4

3.5

22

24.07

\(\begin{aligned} {\text{CPC activity}}\; = & \; - \;{26}.{81167}\; + \;{1}.{15}000 \;*{\text{A}}\; + \;{11}.{3}0000\;*{\text{B}}\; + \;{2}0.00{111} \;*{\text{C}}\; \\ - & \;0.{8}0000\;*{\text{A}}\;*{\text{C}}\; - \;{3}.{13333}\;*{\text{B}}\;*{\text{ C}}\; - \;{1}.{13111}\;*{\text{C2}} \\ \end{aligned}\) (2)