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Table 3 ANOVA for the quadratic models of ethanol concentration and productivity

From: Paper mulberry fruit juice: a novel biomass resource for bioethanol production

Sources of variance

Ethanol concentration

Ethanol productivity

Sum of square

F value

p value

Sum of square

F value

p value

Model

9885.36

226.42

 < 0.0001

16.47

69.87

0.0001

Temperature—X1

6818.78

1405.66

 < 0.0001

11.28

430.61

 < 0.0001

Yeast conc.—X2

0.30

0.06

0.8122

0.00

0.17

0.6953

pH—X3

13.73

2.83

0.1533

0.09

3.45

0.1225

X1X2

11.39

2.33

0.1876

0.13

4.81

0.0798

X1X3

1.39

0.28

0.6151

0.03

1.04

0.3548

X3X4

5.86

1.21

0.3219

0.02

0.86

0.3966

X12

2985.41

615.43

 < 0.0001

4.81

183.70

 < 0.0001

X22

1.47

0.30

0.6062

0.01

0.27

0.6225

X32

5.14

1.06

0.3505

0.02

0.92

0.3813

Lack of fit

20.87

4.12

0.2016

0.12

5.37

0.1610

R2

0.9976

  

0.9921

  

CV

3.92

  

3.85

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