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Table 7 Analysis of variance (ANOVA) of chitinase activity for the reduced model

From: Optimization of chitinase production by a new Streptomyces griseorubens C9 isolate using response surface methodology

Model term

SS

df

MS

F value

P value

B

40.2562

1

40.2562

12.13898

0.002103

B × B

18.0203

1

18.0203

5.43391

0.029313

D

117.0238

1

117.0238

35.28771

0.000006

D × D

28.6104

1

28.6104

8.62727

0.007624

B × D

2.0968

1

2.0968

0.63228

0.435014

Residual

72.9581

22

3.3163

  

Lack of fit

63.193

3

21.064

40.9865

1.708e-08

Pure error

9.765

19

0.514

  
  1. R 2 = 0.7323; Adj R 2 = 0.6714
  2. df degrees of freedom; SS sum of squares; MS mean square;
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Annals of Microbiology

ISSN: 1869-2044

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