Skip to main content

Table 5 Parametric estimations and confidence intervals (α = 0.05) corresponding to the equation (1) applied to the selected acids on bacterial growth measured by relative viable cell count.

From: Evaluation of toxic effects of several carboxylic acids on bacterial growth by toxicodynamic modelling

Parameters

Acetic_Cb

Propionic_Cb

Formic_Ln

Propionic_Ln

 

X m

8.84 ± 0.44

9.78 ± 0.39

8.33 ± 0.36

8.58 ± 0.30

growth model

v m (h-1)

1.79 ± 0.36

1.52 ± 0.12

1.57 ± 0.38

1.81 ± 0.12

 

λ (h)

0.82 ± 0.40

0.93 ± 0.91

0.89 ± 0.40

2.81 ± 2.00

 

K x

1.00 ± 0.09

1.00 ± 0.52

1.00 ± 0.06

0.67 ± 0.28

effect on X m

m x (mM)

25.21 ± 3.91

32.18 ± 16.86

19.39 ± 2.26

19.81 ± 8.78

 

a x

1.35 ± 0.29

1.53 ± 0.59

1.66 ± 0.56

2.76 ± 0.51

 

K v

1.35 ± 0.96

0.99 ± 0.11

0.69 ± 0.67

1.00 ± 0.95

effect on v m

m v (mM)

14.91 ± 12.19

40.34 ± 12.64

14.67 ± 10.12

36.67 ± 27.97

 

a v

0.56 ± 0.42

0.64 ± 0.31

1.90 ± 1.06

5.32 ± 2.31

 

K λ

NS

NS

NS

NS

effect on λ

m λ (mM)

NS

NS

NS

NS

 

a λ

NS

NS

NS

NS

 

EC 50,τ

14.99

29.19

15.74

33.77

 

p-value

< 0.001

< 0.001

< 0.001

< 0.001

 

Bf

1.15

0.98

1.16

0.88

 

Af

1.30

1.15

1.23

1.34

 

R2adj

0.974

0.970

0.975

0.977

  1. EC 50, τ is expressed in mM. NS: non significant. R2adj: adjusted coefficient of multiple determination. p-value from Fisher's F test (α = 0.05). Keys for parameter and bacteria details are described in Tables 6 and 7, respectively.