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The models are based on extensive experimental data of microbial behavior in liquid microbiological media and food.

There can be no guarantee that predicted values will match those that would occur in any specific food system. Before the models could be used in such a manner, the user would have to validate the models for each specific food of interest.

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Growth Model: Yersinia enterocolitica (Broth Culture, Aerobic)

Input Conditions

Range: 5 to 42 °C
Range: 4.5 to 8.5
Range: 0.5 to 5.0 (% [g/dL])
Range: 0.0 to 150.0 (ppm)
Range: 1 - 6
Line chart of data points for modeled growth. Also available in a table format below the chart.
Modeled Growth Parameters
  • Max Growth Rate (log10 cfu/h):
    • Mean:0.15
    • LCL:0.13
    • UCL:0.18
  • Lag Phase Duration (h):
    • Mean:15.4
    • LCL:11.1
    • UCL:21.4
  • Maximum Population Density: 10.28 (log10 cfu/ml)
Modeled Growth
Time (h) log10 cfu/ml
Mean LCL UCL
0.00 3.011 3.004 3.024
0.50 3.014 3.005 3.029
1.00 3.016 3.006 3.034
1.50 3.019 3.007 3.041
2.00 3.023 3.008 3.049
2.50 3.026 3.010 3.058
3.00 3.031 3.011 3.068
3.50 3.036 3.013 3.079
4.00 3.042 3.015 3.092
4.50 3.048 3.018 3.106
5.00 3.055 3.020 3.122
5.50 3.063 3.023 3.140
6.00 3.072 3.027 3.159
6.50 3.082 3.030 3.181
7.00 3.093 3.034 3.204
7.50 3.105 3.039 3.230
8.00 3.118 3.044 3.258
8.50 3.133 3.050 3.288
9.00 3.148 3.056 3.320
9.50 3.165 3.062 3.355
10.00 3.183 3.070 3.392
10.50 3.203 3.078 3.432
11.00 3.224 3.086 3.475
11.50 3.247 3.096 3.519
12.00 3.272 3.106 3.567
12.50 3.297 3.117 3.617
13.00 3.325 3.129 3.669
13.50 3.354 3.141 3.724
14.00 3.386 3.155 3.782
14.50 3.418 3.170 3.842
15.00 3.453 3.185 3.904
15.50 3.489 3.202 3.969
16.00 3.527 3.219 4.036
16.50 3.567 3.238 4.105
17.00 3.609 3.258 4.176
17.50 3.652 3.278 4.249
18.00 3.698 3.300 4.324
18.50 3.745 3.324 4.401
19.00 3.793 3.348 4.479
19.50 3.844 3.374 4.560
20.00 3.896 3.400 4.641
20.50 3.949 3.428 4.724
21.00 4.005 3.458 4.808
21.50 4.062 3.488 4.894
22.00 4.120 3.520 4.980
22.50 4.180 3.553 5.067
23.00 4.241 3.587 5.155
23.50 4.303 3.623 5.244
24.00 4.367 3.659 5.333
24.50 4.432 3.697 5.423
25.00 4.498 3.736 5.512
25.50 4.566 3.777 5.603
26.00 4.634 3.818 5.693
26.50 4.703 3.861 5.783
27.00 4.773 3.905 5.873
27.50 4.844 3.950 5.963
28.00 4.916 3.996 6.052
28.50 4.989 4.044 6.141
29.00 5.062 4.092 6.230
29.50 5.135 4.141 6.318
30.00 5.209 4.192 6.405
30.50 5.284 4.243 6.492
31.00 5.358 4.296 6.578
31.50 5.433 4.349 6.663
32.00 5.509 4.403 6.747
32.50 5.584 4.458 6.831
33.00 5.659 4.513 6.913
33.50 5.735 4.570 6.994
34.00 5.810 4.627 7.074
34.50 5.886 4.685 7.154
35.00 5.961 4.743 7.231
35.50 6.036 4.802 7.308
36.00 6.111 4.862 7.384
36.50 6.185 4.922 7.458
37.00 6.259 4.983 7.531
37.50 6.332 5.044 7.602
38.00 6.406 5.105 7.673
38.50 6.478 5.167 7.742
39.00 6.550 5.229 7.810
39.50 6.622 5.291 7.876
40.00 6.693 5.354 7.941
40.50 6.763 5.417 8.005
41.00 6.833 5.480 8.068
41.50 6.902 5.543 8.129
42.00 6.970 5.606 8.189
42.50 7.037 5.669 8.247
43.00 7.104 5.732 8.304
43.50 7.170 5.795 8.360
44.00 7.235 5.858 8.415
44.50 7.299 5.921 8.468
45.00 7.363 5.984 8.520
45.50 7.425 6.047 8.571
46.00 7.487 6.110 8.620
46.50 7.548 6.172 8.669
47.00 7.607 6.234 8.716
47.50 7.666 6.296 8.762
48.00 7.724 6.357 8.807
48.50 7.782 6.418 8.850
49.00 7.838 6.479 8.893
49.50 7.893 6.539 8.934
50.00 7.947 6.599 8.974
50.50 8.001 6.659 9.014
51.00 8.053 6.718 9.052
51.50 8.105 6.777 9.089
52.00 8.155 6.835 9.125
52.50 8.205 6.893 9.160
53.00 8.254 6.950 9.194
53.50 8.302 7.007 9.228
54.00 8.348 7.063 9.260
54.50 8.394 7.119 9.291
55.00 8.440 7.174 9.322
55.50 8.484 7.228 9.351
56.00 8.527 7.282 9.380
56.50 8.570 7.335 9.408
57.00 8.611 7.388 9.435
57.50 8.652 7.440 9.461
58.00 8.692 7.492 9.487
58.50 8.731 7.542 9.512
59.00 8.769 7.593 9.536
59.50 8.807 7.642 9.559
60.00 8.843 7.691 9.582
60.50 8.879 7.739 9.604
61.00 8.914 7.787 9.625
61.50 8.948 7.834 9.646
62.00 8.982 7.881 9.666
62.50 9.014 7.926 9.686
63.00 9.046 7.971 9.704
63.50 9.078 8.016 9.723
64.00 9.108 8.059 9.740
64.50 9.138 8.103 9.758
65.00 9.167 8.145 9.774
65.50 9.196 8.187 9.791
66.00 9.224 8.228 9.806
66.50 9.251 8.268 9.821
67.00 9.277 8.308 9.836
67.50 9.303 8.348 9.850
68.00 9.329 8.386 9.864
68.50 9.353 8.424 9.878
69.00 9.377 8.461 9.890
69.50 9.401 8.498 9.903
70.00 9.424 8.534 9.915
70.50 9.446 8.570 9.927
71.00 9.468 8.605 9.938
71.50 9.489 8.639 9.949
72.00 9.510 8.673 9.960
72.50 9.530 8.706 9.970
73.00 9.550 8.738 9.981
73.50 9.569 8.770 9.990
74.00 9.588 8.802 10.000
74.50 9.606 8.832 10.009
75.00 9.624 8.863 10.018
75.50 9.642 8.892 10.026
76.00 9.659 8.921 10.034
76.50 9.675 8.950 10.042
77.00 9.691 8.978 10.050
77.50 9.707 9.005 10.058
78.00 9.722 9.032 10.065
78.50 9.737 9.059 10.072
79.00 9.752 9.085 10.079
79.50 9.766 9.110 10.085
80.00 9.780 9.135 10.092
80.50 9.793 9.160 10.098
81.00 9.806 9.184 10.104
81.50 9.819 9.208 10.109
82.00 9.831 9.231 10.115
82.50 9.843 9.253 10.120
83.00 9.855 9.276 10.126
83.50 9.867 9.297 10.131
84.00 9.878 9.319 10.136
84.50 9.889 9.340 10.140
85.00 9.899 9.360 10.145
85.50 9.909 9.380 10.149
86.00 9.920 9.400 10.154
86.50 9.929 9.419 10.158
87.00 9.939 9.438 10.162
87.50 9.948 9.456 10.166
88.00 9.957 9.474 10.169
88.50 9.966 9.492 10.173
89.00 9.974 9.509 10.177
89.50 9.983 9.526 10.180
90.00 9.991 9.543 10.183
90.50 9.999 9.559 10.186
91.00 10.006 9.575 10.190
91.50 10.014 9.591 10.193
92.00 10.021 9.606 10.195
92.50 10.028 9.621 10.198
93.00 10.035 9.636 10.201
93.50 10.042 9.650 10.203
94.00 10.048 9.664 10.206
94.50 10.055 9.678 10.208
95.00 10.061 9.692 10.211
95.50 10.067 9.705 10.213
96.00 10.073 9.718 10.215
96.50 10.078 9.730 10.217
97.00 10.084 9.743 10.219
97.50 10.089 9.755 10.221
98.00 10.094 9.766 10.223
98.50 10.100 9.778 10.225
99.00 10.104 9.789 10.227
99.50 10.109 9.800 10.229
100.00 10.114 9.811 10.231
Source:

S. Bhaduri, C.O. Turner-Jones, R.L. Buchanan and J.G. Phillips, Response Surface Model of the Effect of pH, Sodium Chloride and Sodium Nitrite on Growth of Yersinia enterocolitica at Low Temperatures:  International Journal of Food Microbiology (1994) 23:333-343.

S. Bhaduri, R.L. Buchanan and J.G. Phillips, Expanded response Surface Model for Predicting the Effects of Temperatures, pH, Sodium Chloride Contents and Sodium Nitrite Concentrations on the Growth Rate ofYersinia enterocolitica:  Journal of Applied Bacteriology (1995) 79:163-170.