Table 10 ANOVA-model results to check for variations in LA yield (g/g). (r2 = 92.5%).

From: Nutrient-free biorefinery of corn steep water into lactic acid by Bacillus licheniformis OP16-2 under thermo-alkaline conditions with a pilot-scale assessment

Source

df

Adj SS

Adj MS

F-Value

p-Value

Model

19

24703.4

1300.2

115.41

0.000

Linear (Main Effect)

19

0.060026

0.003159

27.34

0.000

Sugar Conc.

5

0.007041

0.001408

12.19

0.000

Temp.

1

0.004901

0.004901

42.41

0.000

Inoculum Size

1

0.000145

0.000145

1.25

0.269

pH

1

0.001970

0.001970

17.05

0.000

YE

1

0.000013

0.000013

0.11

0.737

Square

1

0.000012

0.000012

0.10

0.750

Sugar Conc. × Sugar Conc.

4

0.048376

0.012094

104.6

0.000

Temp. × Temp.

1

0.014447

0.014447

125.0

0.000

Incula. Size × Incula. Size

1

0.021126

0.021126

182.8

0.000

pH × pH

1

0.009208

0.009208

79.6

0.000

2-Way Interaction

1

0.018373

0.018373

159.0

0.000

Sugar Conc. × Temp.

10

0.004609

0.000461

3.99

0.001

Sugar Conc. × Incula. Size

1

0.000229

0.000229

1.98

0.166

Sugar Conc. × pH

1

0.003797

0.003797

32.8

0.000

Sugar Conc. × YE

1

0.000059

0.000059

0.51

0.477

Temp. × Incula. Size

1

0.000000

0.000000

0.00

0.972

Temp. × pH

1

0.000322

0.000322

2.79

0.102

Temp. × YE

1

0.000001

0.000001

0.01

0.931

Incula. Size × pH

1

0.000000

0.000000

0.00

0.973

Inocula. Size × YE

1

0.000196

0.000196

1.70

0.200

pH × YE

1

0.000003

0.000003

0.03

0.866

Error

1

0.000000

0.000000

0.00

0.997

Lack-of-Fit

42

0.004853

0.000116

  

Pure Error

30

0.004648

0.000155

9.04

0.000

Total

61

0.064879