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Table 7 ANOVA (Analysis of variance) for response surface quadratic model for optimization of tannase production of Klebsiella pneumoniae using agro-residue as substrate

From: Improved production of tannase by Klebsiella pneumoniae using Indian gooseberry leaves under submerged fermentation using Taguchi approach

Source

Sum of squares

Df

Mean square

F value

P value Prob > F

 

Model

0.0040867

14

0.0002919

13.2114

5.553721E−06

Significant

 A-pH

0.0000257

1

0.0000257

1.1619

2.981019E−01

 

 B-Incubation temp.

0.0001554

1

0.0001554

7.0332

1.811788E−02

 

 C-Incubation time

0.0001503

1

0.0001503

6.8041

1.976303E−02

 

 D-tannin content

0.0002212

1

0.0002212

10.0123

6.416836E−03

 

 AB

0.0001657

1

0.0001657

7.4990

1.523655E−02

 

 AC

0.0000110

1

0.0000110

0.5001

4.903135E−01

 

 AD

0.0001000

1

0.0001000

4.5249

5.040503E−02

 

 BC

0.0000095

1

0.0000095

0.4321

5.209274E−01

 

 BD

0.0000658

1

0.0000658

2.9770

1.049926E−01

 

 CD

0.0000352

1

0.0000352

1.5945

2.259671E−01

 

 A2

0.0012408

1

0.0012408

56.1576

1.907611E−06

 

 B2

0.0011574

1

0.0011574

52.3822

2.889849E−06

 

 C2

0.0008288

1

0.0008288

37.5096

1.944786E−05

 

 D2

0.0012493

1

0.0012493

56.5403

1.831271E−06

 

Residual

0.0003314

15

0.0000221

   

Lack of fit

0.0002059

10

0.0000206

0.8205

6.318597E−01

Not significant

Pure error

0.0001255

5

0.0000251

   

Cor total

0.0044181

29