Evaluation of the Stress Tolerance of Salmonella with Different Antibiotic Resistance Profiles
Table 3
Parameter estimates and statistical analysis of the Modified Gompertz, Huang, Logistic, and Baranyi models fitted to MDR S. Typhimurium HZC3 and DS S. Typhimurium SA62 growth curves at 12, 16, 28, and 36°C.
Model
Strain
Temperature (°C)
(CFU/cm2)
(h)
(log CFU/cm2/h)
(CFU/cm2)
AIC
RMSE
Modified Gompertz
HZC3
12
3.43
14.27
0.07
4.65
0.82
-22.19
0.26
16
3.08
4.12
0.31
7.01
0.98
-30.17
0.22
28
2.93
0.00
0.47
7.22
0.96
-34.54
0.29
36
2.61
0.10
0.83
7.00
0.97
-39.07
0.24
SA62
12
3.30
11.81
0.47
4.90
0.70
19.40
0.39
16
3.14
4.71
0.27
6.62
0.96
31.21
0.27
28
2.63
0.00
0.57
7.36
0.99
-47.47
0.14
36
2.56
0.00
0.47
7.52
0.89
36.21
0.34
Huang
HZC3
12
3.41
12.32
0.10
4.66
0.84
-23.10
0.25
16
3.15
3.66
0.25
7.00
0.97
-28.15
0.24
28
3.04
0.00
0.39
7.19
0.95
-26.16
0.33
36
2.61
0.00
0.69
6.98
0.97
-36.24
0.24
SA62
12
3.28
6.11
0.18
4.94
0.88
20.21
0.43
16
3.19
4.21
0.23
6.63
0.96
31.20
0.27
28
3.01
0.37
0.47
7.33
0.99
-41.86
0.17
36
2.56
0.00
0.76
7.31
0.92
-17.38
0.42
Logistic
HZC3
12
3.43
24.63
0.21
4.66
0.82
-31.81
0.26
16
3.14
11.64
0.25
7.05
0.98
-35.86
0.21
28
2.89
5.25
0.63
7.48
0.98
-39.12
0.21
36
2.62
3.11
0.55
7.18
0.98
-38.57
0.23
SA62
12
3.30
34.06
0.17
5.93
0.67
-20.35
0.41
16
2.87
11.47
0.37
6.70
0.95
-32.94
0.26
28
3.28
5.39
0.43
7.45
0.99
-61.42
0.11
36
3.30
1.17
0.90
7.91
0.91
-31.43
0.30
Baranyi
HZC3
12
3.56
-0.91
0.10
4.72
0.76
-21.95
0.30
16
3.14
-1.62
0.32
6.97
0.97
-26.34
0.24
28
3.07
13.74
0.39
7.19
0.95
-25.29
0.33
36
2.61
67.54
0.69
6.98
0.97
-9.28
0.24
SA62
12
3.14
0.00
0.18
4.94
0.64
19.91
0.43
16
2.22
4.58
0.23
6.62
0.95
31.18
0.28
28
2.84
6.14
0.47
7.33
0.98
-41.30
0.18
36
4.45
0.00
0.44
7.46
0.86
32.34
0.38
: the lag time (h); : the physiological state of the microorganism; : the maximum specific growth rate (log CFU/cm2/h); : maximum bacterial populations (CFU/cm2/h).
