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Table 4 ANOVA of the fitted quadratic polynomial model of melanin production by S. djakartensis NSS-3

From: Bioproduction and optimization of newly characterized melanin pigment from Streptomyces djakartensis NSS-3 with its anticancer, antimicrobial, and radioprotective properties

Source

Sum of Squares

df

Mean square

F value

P-value Prob > F

 

Model

6904.38

8

767.15

4.12

0.0378

Significant

A-L tyrosine

2114.45

1

2114.45

11.34

0.0120

 

B-Time

1523.52

1

1523.52

8.17

0.0244

C-Ferric ammonium citrate

25.99

1

25.99

0.14

0.7199

BC

18.84

1

18.84

0.10

0.7599

A2

36.00

1

36.00

0.19

0.6736

B2

502.21

1

502.21

2.69

0.1447

C2

2432.44

1

2432.44

13.05

0.0086

BC2

174.65

1

174.65

0.94

0.3653

Residual

8.97

8

8.97

0.048

0.8326

Lack of Fit

1304.86

4

186.41

47.47

0.0014

Significant

Pure Error

1269.21

4

423.07

  

Cor Total

35.65

16

R2 = 0.8410

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