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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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Listeria monocytogenes (Broth Culture, Anaerobic, Aw)

Input Conditions

Range: 4 to 37 °C
Range: 4.5 to 8.0
Range: 0.970 to 0.997
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:0.45
    • LCL:0.40
    • UCL:0.50
  • Lag Phase Duration (h):
    • Mean:2.6
    • LCL:2.3
    • UCL:3.0
  • Maximum Population Density: 9.34 (log10 cfu/ml)
Modeled Growth
Time (h) log10 cfu/ml
Mean LCL UCL
0.00 3.070 3.067 3.072
0.25 3.086 3.081 3.091
0.50 3.105 3.098 3.114
0.75 3.128 3.116 3.140
1.00 3.153 3.138 3.171
1.25 3.182 3.162 3.207
1.50 3.215 3.189 3.247
1.75 3.252 3.219 3.292
2.00 3.294 3.253 3.343
2.25 3.339 3.289 3.400
2.50 3.389 3.330 3.461
2.75 3.443 3.373 3.529
3.00 3.502 3.421 3.602
3.25 3.566 3.472 3.680
3.50 3.634 3.526 3.764
3.75 3.706 3.585 3.853
4.00 3.782 3.647 3.947
4.25 3.863 3.712 4.046
4.50 3.947 3.781 4.149
4.75 4.036 3.853 4.256
5.00 4.127 3.928 4.366
5.25 4.223 4.006 4.480
5.50 4.321 4.088 4.596
5.75 4.421 4.172 4.715
6.00 4.525 4.258 4.836
6.25 4.630 4.347 4.958
6.50 4.737 4.438 5.082
6.75 4.846 4.531 5.206
7.00 4.956 4.625 5.331
7.25 5.066 4.721 5.455
7.50 5.178 4.819 5.580
7.75 5.290 4.917 5.703
8.00 5.402 5.016 5.826
8.25 5.514 5.116 5.948
8.50 5.625 5.216 6.067
8.75 5.736 5.317 6.186
9.00 5.846 5.417 6.302
9.25 5.955 5.518 6.416
9.50 6.062 5.618 6.528
9.75 6.168 5.717 6.637
10.00 6.273 5.816 6.744
10.25 6.376 5.914 6.848
10.50 6.477 6.011 6.949
10.75 6.577 6.107 7.048
11.00 6.674 6.202 7.144
11.25 6.769 6.296 7.236
11.50 6.862 6.388 7.326
11.75 6.953 6.479 7.413
12.00 7.041 6.568 7.497
12.25 7.128 6.656 7.578
12.50 7.212 6.742 7.657
12.75 7.293 6.826 7.732
13.00 7.372 6.908 7.805
13.25 7.449 6.989 7.875
13.50 7.524 7.067 7.942
13.75 7.596 7.144 8.006
14.00 7.666 7.219 8.068
14.25 7.733 7.292 8.128
14.50 7.798 7.364 8.185
14.75 7.861 7.433 8.239
15.00 7.922 7.500 8.292
15.25 7.981 7.566 8.342
15.50 8.038 7.629 8.389
15.75 8.092 7.691 8.435
16.00 8.145 7.751 8.479
16.25 8.195 7.809 8.521
16.50 8.244 7.866 8.561
16.75 8.291 7.920 8.599
17.00 8.336 7.973 8.635
17.25 8.379 8.025 8.670
17.50 8.421 8.074 8.703
17.75 8.461 8.122 8.735
18.00 8.499 8.168 8.765
18.25 8.536 8.213 8.793
18.50 8.571 8.256 8.820
18.75 8.605 8.298 8.846
19.00 8.638 8.338 8.871
19.25 8.669 8.377 8.895
19.50 8.699 8.415 8.917
19.75 8.727 8.451 8.938
20.00 8.755 8.486 8.959
20.25 8.781 8.519 8.978
20.50 8.806 8.552 8.996
20.75 8.830 8.583 9.014
21.00 8.853 8.613 9.030
21.25 8.875 8.642 9.046
21.50 8.896 8.670 9.061
21.75 8.916 8.696 9.075
22.00 8.935 8.722 9.089
22.25 8.953 8.747 9.102
22.50 8.971 8.771 9.114
22.75 8.988 8.794 9.125
23.00 9.004 8.816 9.136
23.25 9.019 8.837 9.147
23.50 9.034 8.857 9.157
23.75 9.048 8.877 9.166
24.00 9.061 8.896 9.175
24.25 9.074 8.914 9.184
24.50 9.086 8.931 9.192
24.75 9.098 8.948 9.199
25.00 9.109 8.964 9.206
Source:

R.L. Buchanan, H.G. Stahl and R.C. Whiting, Effects and Interactions of Temperature, pH, Atmosphere, Sodium Chloride, and Sodium Nitrite on the Growth of Listeria monocytogenes:  Journal of Food Protection (1989) 52(12):844-851.

R.L. Buchanan and J.G. Phillips, Response Surface Model for Predicting the Effects of Temperature, pH, Sodium Chloride content, Sodium Nitrite Concentration, and Atmosphere on the Growth of Listeria monocytogenes.:  J. Food Protection (1990) 53:370-376.