Table 5 The eta squared (η2) for the magnitude of effect of Calcium salt concentrations or the time and the interaction between them on changes of each studied parameter in Bacillus subtilis.

From: Assessment of ecofriendly carbon capture using Bacillus subtilis induced calcium carbonate precipitation with focus on applications mechanisms and cost efficiency

Salts

Source

OD

Protein

Ammonia content

Nitrgenase activity

η2

F-value

η2

F-value

η2

F-value

η2

F-value

Acetate

Time

0.15 L

3.62*

0.637L

76.87*

0.016S

51.8*

0.015S

98.62*

Ac

0.21 L

5.1**

0.183 L

22.06*

0.974 L

2995.6*

0.044S

280.11*

Time * Ac

0.11 M

0.7*

0.076 M

2.289*

0.004

3.230*

0.937 L

1470.1*

Error

0.52 L

 

0.10 M

 

0.004

 

0.001

 

Citrate

Time

0.08 M

68.3*

0.56 L

85.43*

0.166 L

5.55**

0.024S

124.23*

Cit

0.85 L

720.1*

0.281 L

42.81*

0.306 L

10.234*

0.109 M

553.60*

Time * Cit

0.03S

8.18*

0.077 M

2.92*

0.152 L

1.275*

0.86 L

1096.3*

Error

0.01S

 

0.082 M

 

0.374 L

 

0.002

 

Chloride

Time

0.32 L

25.5*

0.559 L

201.44*

0.019S

73.091*

0.015S

239.72*

Cl

0.24 L

18.7*

0.330 L

119.07*

0.96 L

3627.4*

0.216 L

3258.4*

Time * Cl

0.30 L

5.9*

0.076 M

6.875*

0.008

7.875*

0.767 L

2889.4*

Error

0.16 L

 

0.035S

 

0.003

 

0.001

 

Nitrate

Time

0.21

22.9*

0.532

100.81*

0.011

30.300*

0.022

146.61*

Nit

0.51

55.04*

0.339

64.27*

0.98

2652.1*

0.106

689.44*

Time * Nit

0.10

2.928

0.063

3.002*

0.002

1.669*

0.868

1400.13*

Error

0.11

 

0.066

 

0.004

 

0.002

 
  1. The significant effect of each factor on the parameters is achieved from the two-way ANOVA.
  2. The positive sign (+) indicates positive correlations and the negative sign (−) indicates negative correlations while one star (*) indicates weak correlation value (< 0.7) and two stars (**) indicate strong correlation (≥ 0.7); no star indicates no correlation. L, M and S indicate the effect size.
Back to article page