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Table 3 ANOVA for response surface polynomial equation and corresponding F-values and p-values for zeaxanthin production by A. gandavensis

From: Ameliorating process parameters for zeaxanthin yield in Arthrobacter gandavensis MTCC 25325

Source

Degree of freedom

Adj SS

Adj MS

F-value

P-value

Model

9

3.95944

0.43994

14.46

0.000

Linear

3

0.78525

0.26175

8.60

0.004

X1

1

0.67081

0.67081

22.05

0.001

X2

1

0.10000

0.10000

3.29

0.100

X3

1

0.01444

0.01444

0.47

0.507

Square

3

2.90165

0.96722

31.79

0.000

X21

1

2.46055

2.46055

80.88

0.000

X22

1

0.50633

0.50633

16.64

0.002

X23

1

0.00100

0.00100

0.03

0.860

2-way interaction

3

0.27254

0.09085

2.99

0.083

X1X2

1

0.23461

0.23461

7.71

0.020

X1X3

1

0.00281

0.00281

0.09

0.767

X2X3

1

0.03511

0.03511

1.15

0.308

Error

10

0.30422

0.03042

  

Lack-of-fit

5

0.30422

0.06084

  

Pure error

5

0.00000

0.00000

  

Total

19

4.26365

   

R2

0.928