Table 5 The Analysis of variance for the experimental results of Plackett–Burman design.

From: Investigation of impact of siderophore and process variables on production of iron enriched Saccharomyces boulardii by Plackett–Burman design

Term

Bimass weight (R1)

Organic iron content (R2)

df

Sum of

Squares

Mean

Square

F-value

p-value

Confidence

level%

df

Sum of squares

Mean

Square

F-value

p-value

Confidence

level%

Model

11

225.10

20.46

41.87

 < 0.0001

 > 99.99%

11

80,572.46

7324.77

204.31

 < 0.0001

 > 99.99%

A

1

29.70

29.70

60.77

 < 0.0001

 > 99.99%

1

2955.49

2955.49

82.44

 < 0.0001

 > 99.99%

B

1

48.45

48.45

99.13

 < 0.0001

 > 99.99%

1

6812.46

6812.46

190.02

 < 0.0001

 > 99.99%

C

1

0.26

0.260

0.532

0.4794

52.06%

1

30.53

30.53

0.851

0.3743

62.57%

D

1

3.45

3.45

7.06

0.0209

97.91%

1

1129.57

1129.57

31.51

0.0001

99.99%

E

1

0.843

0.843

1.73

0.2134

78.66%

1

184.87

184.87

5.16

0.0424

95.76%

F

1

0.093

0.093

0.191

0.6692

33.08%

1

89.20

89.20

2.49

0.1407

85.93%

G

1

106.26

106.26

217.41

 < 0.0001

 > 99.99%

1

57,345.04

57,345.04

1599.56

 < 0.0001

 > 99.99%

H

1

1.45

1.45

2.97

0.1106

88.94%

1

1399.19

1399.19

39.03

 < 0.0001

 > 99.99%

J

1

5.32

5.32

10.89

0.0063

99.37%

1

3237.10

3237.10

90.29

 < 0.0001

 > 99.99%

K

1

10.01

10.01

20.48

0.0007

99.93%

1

1591.04

1591.04

44.38

 < 0.0001

 > 99.99%

L

1

19.26

19.26

39.41

 < 0.0001

 > 99.99%

1

5797.97

5797.97

161.73

 < 0.0001

 > 99.99%

intercept

1

     

1

     

Pure Error

12

5.86

0.488

   

12

430.21

35.85

   

Cor Total

23

230.97

    

23

81,002.67

    

model

Std. Dev.

0.6991

R2

0.9746

Std. Dev.

5.99

R2

0.9947

Mean

3.60

Adj R2

0.9513

Mean

54

Adj R2

0.9898

C.V.%

19.44

Pred R2

0.8984

C.V.%

11.09

Pred R2

0.9788

PRESS

23.46

Adeq Presision

18.3071

PRESS

1720.83

Adeq Presision

38.2975

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