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Table 2 ANOVA for joint test

From: A modeling study by response surface methodology and artificial neural network on culture parameters optimization for thermostable lipase production from a newly isolated thermophilic Geobacillus sp. strain ARM

Source

Sum of Squares

DF

Mean Square

F Value

Prob > F

 

Model

0.083

27

3.075E-003

1176.88

< 0.0001

significant

A

1.462E-004

1

1.462E-004

55.96

0.0007

 

B

4.418E-005

1

4.418E-005

16.91

0.0092

 

C

3.536E-003

1

3.536E-003

1353.65

<0.0001

 

D

2.278E-003

1

2.278E-003

872.01

<0.0001

 

E

1.625E-003

1

1.625E-003

621.82

<0.0001

 

F

0.000

1

0.000

0.000

1.0000

 

A 2

3.236E-004

1

3.236E-004

123.86

0.0001

 

B 2

2.173E-005

1

2.173E-005

8.32

0.0344

 

C 2

2.829E-005

1

2.829E-005

10.83

0.0217

 

D 2

2.322E-004

1

2.322E-004

88.89

0.0002

 

E 2

1.457E-004

1

1.457E-004

55.78

0.0007

 

F 2

3.089E-003

1

3.089E-003

1182.37

<0.0001

 

AB

5.105E-003

1

5.105E-003

1954.11

<0.0001

 

AC

3.499E-003

1

3.499E-003

1339.22

<0.0001

 

AD

2.252E-003

1

2.252E-003

862.12

<0.0001

 

AE

1.873E-003

1

1.873E-003

716.75

<0.0001

 

AF

2.059E-004

1

2.059E-004

78.82

0.0003

 

BC

5.826E-003

1

5.826E-003

2229.90

<0.0001

 

BE

4.489E-003

1

4.489E-003

1718.28

<0.0001

 

BF

2.346E-003

1

2.346E-003

898.14

<0.0001

 

CD

2.162E-005

1

2.162E-005

8.28

0.0347

 

CE

2.992E-003

1

2.992E-003

1145.30

<0.0001

 

CF

5.720E-005

1

5.720E-005

21.90

0.0054

 

DE

9.310E-004

1

9.310E-004

356.38

< 0.0001

 

DF

1.373E-003

1

1.373E-003

525.44

< 0.0001

 

EF

6.529E-003

1

6.529E-003

2499.00

< 0.0001

 

ADE

2.820E-003

1

2.820E-003

1079.53

< 0.0001

 

Residual

1.306E-005

5

2.613E-006

   

Lack of Fit

5.625E-007

1

5.625E-007

0.18

0.6932

not significant

Pure Error

1.250E-005

4

3.125E-006

   

Cor Total

0.083

32

    
  1. A: Temperature
  2. B: Medium volume
  3. C: Inoculum size
  4. D: Agitation rate
  5. E: Incubation period
  6. F: Initial medium pH