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Table 2 Analysis of variance (ANOVA) for the response of bioemulsifier production ( Y 1 ) a and emulsifying activity ( Y 2 ) b of T. mycotoxinivorans cultivated in medium containing biodiesel refinery residue

From: Bioconversion of biodiesel refinery waste in the bioemulsifier by Trichosporon mycotoxinivorans CLA2

Response

Terms of the Model

Degrees of freedom

Estimated

Sum of squares

Mean squares

F-value

P-value

Y 1

b0

-

53.6818

-

-

-

0.000

 

X 2

1

−25.0418

33066316

33066316

47.56

0.000c

 

X 3

1

299.589

146492422

146492422

210.73

0.000c

 

X 2 *X 3

1

26.2696

12962460

12962460

18.65

0.000c

 

Full model

3

-

192521198

64173733

92.31

0.000c

 

Total Error

56

-

38930197

695182

-

-

 

Total

59

-

-

-

-

-

Y 2

b0

-

−37.7272

-

-

-

0.000

 

X 2

1

1.63938

4270.1

4270.1

22.21

0.000c

 

X 3

1

32.3493

15038.7

15038.7

78.22

0.000c

 

X 2 2

1

- 0.0141048

1384

1384.0

7.20

0.010c

 

X 3 2

1

- 3.50229

2059

2059.2

10.71

0.002c

 

Full model

4

-

22473

5618.2

29.22

0.003c

 

Total Error

55

-

10574

192.2

-

-

 

Total

59

-

-

-

-

-

  1. Coefficient of variation (CV): a 31.45, b 23.87. Coefficient of determination (R2): a 83.18,b 68.00. c Significant at 5% level (P < 0.05).