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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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Bacillus cereus (vegetative) in Broth Culture (Aerobic)

Input Conditions

Range: 5 to 42 °C
Range: 4.7 to 7.5
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:0.27
    • LCL:0.19
    • UCL:0.36
  • Lag Phase Duration (h):
    • Mean:13.9
    • LCL:10.3
    • UCL:18.7
  • Maximum Population Density: 8.87 (log10 cfu/ml)
Modeled Growth
Time (h) log10 cfu/ml
Mean LCL UCL
0.00 3.000 3.000 3.000
0.25 3.000 3.000 3.000
0.50 3.000 3.000 3.000
0.75 3.000 3.000 3.000
1.00 3.000 3.000 3.000
1.25 3.000 3.000 3.000
1.50 3.000 3.000 3.000
1.75 3.000 3.000 3.000
2.00 3.000 3.000 3.000
2.25 3.000 3.000 3.000
2.50 3.000 3.000 3.000
2.75 3.000 3.000 3.000
3.00 3.000 3.000 3.001
3.25 3.000 3.000 3.001
3.50 3.000 3.000 3.001
3.75 3.000 3.000 3.002
4.00 3.001 3.000 3.002
4.25 3.001 3.000 3.003
4.50 3.001 3.000 3.004
4.75 3.001 3.000 3.006
5.00 3.002 3.001 3.008
5.25 3.002 3.001 3.010
5.50 3.003 3.001 3.013
5.75 3.004 3.001 3.017
6.00 3.005 3.001 3.022
6.25 3.006 3.001 3.028
6.50 3.007 3.002 3.034
6.75 3.008 3.002 3.043
7.00 3.010 3.002 3.052
7.25 3.013 3.003 3.063
7.50 3.015 3.003 3.076
7.75 3.018 3.004 3.091
8.00 3.022 3.005 3.108
8.25 3.026 3.005 3.128
8.50 3.030 3.006 3.150
8.75 3.035 3.007 3.174
9.00 3.041 3.009 3.201
9.25 3.048 3.010 3.231
9.50 3.056 3.011 3.264
9.75 3.064 3.013 3.300
10.00 3.073 3.015 3.339
10.25 3.084 3.017 3.382
10.50 3.095 3.020 3.427
10.75 3.108 3.022 3.476
11.00 3.122 3.025 3.528
11.25 3.137 3.028 3.583
11.50 3.154 3.032 3.641
11.75 3.172 3.036 3.702
12.00 3.191 3.040 3.766
12.25 3.212 3.045 3.833
12.50 3.234 3.050 3.903
12.75 3.258 3.056 3.976
13.00 3.284 3.062 4.050
13.25 3.311 3.068 4.128
13.50 3.340 3.075 4.207
13.75 3.371 3.083 4.288
14.00 3.403 3.091 4.371
14.25 3.437 3.100 4.456
14.50 3.473 3.110 4.542
14.75 3.511 3.120 4.629
15.00 3.550 3.131 4.718
15.25 3.591 3.142 4.807
15.50 3.633 3.155 4.897
15.75 3.677 3.168 4.987
16.00 3.723 3.181 5.078
16.25 3.771 3.196 5.169
16.50 3.819 3.211 5.260
16.75 3.870 3.228 5.350
17.00 3.922 3.245 5.441
17.25 3.975 3.263 5.530
17.50 4.029 3.281 5.620
17.75 4.085 3.301 5.708
18.00 4.142 3.322 5.796
18.25 4.200 3.343 5.883
18.50 4.259 3.365 5.968
18.75 4.319 3.389 6.053
19.00 4.381 3.413 6.136
19.25 4.442 3.438 6.218
19.50 4.505 3.464 6.299
19.75 4.568 3.491 6.378
20.00 4.632 3.519 6.456
20.25 4.697 3.548 6.532
20.50 4.762 3.577 6.607
20.75 4.827 3.608 6.680
21.00 4.893 3.639 6.752
21.25 4.959 3.672 6.821
21.50 5.026 3.705 6.890
21.75 5.092 3.739 6.956
22.00 5.158 3.774 7.021
22.25 5.225 3.810 7.084
22.50 5.291 3.846 7.146
22.75 5.357 3.883 7.206
23.00 5.424 3.921 7.264
23.25 5.489 3.960 7.320
23.50 5.555 4.000 7.375
23.75 5.620 4.040 7.428
24.00 5.685 4.081 7.480
24.25 5.749 4.122 7.530
24.50 5.813 4.164 7.579
24.75 5.877 4.207 7.626
25.00 5.940 4.250 7.672
25.25 6.002 4.294 7.716
25.50 6.063 4.338 7.759
25.75 6.124 4.383 7.800
26.00 6.185 4.428 7.840
26.25 6.244 4.474 7.878
26.50 6.303 4.520 7.916
26.75 6.361 4.566 7.952
27.00 6.418 4.613 7.987
27.25 6.475 4.660 8.020
27.50 6.531 4.707 8.053
27.75 6.585 4.755 8.084
28.00 6.639 4.803 8.114
28.25 6.692 4.851 8.143
28.50 6.745 4.899 8.171
28.75 6.796 4.947 8.199
29.00 6.846 4.996 8.225
29.25 6.896 5.044 8.250
29.50 6.945 5.093 8.274
29.75 6.993 5.141 8.297
30.00 7.039 5.190 8.320
30.25 7.085 5.238 8.341
30.50 7.131 5.287 8.362
30.75 7.175 5.335 8.382
31.00 7.218 5.384 8.401
31.25 7.261 5.432 8.420
31.50 7.302 5.480 8.438
31.75 7.343 5.528 8.455
32.00 7.383 5.576 8.472
32.25 7.422 5.624 8.487
32.50 7.460 5.671 8.503
32.75 7.497 5.718 8.517
33.00 7.534 5.765 8.531
33.25 7.569 5.812 8.545
33.50 7.604 5.859 8.558
33.75 7.638 5.905 8.571
34.00 7.671 5.951 8.583
34.25 7.704 5.996 8.594
34.50 7.735 6.041 8.605
34.75 7.766 6.086 8.616
35.00 7.796 6.131 8.626
35.25 7.826 6.175 8.636
35.50 7.855 6.218 8.645
35.75 7.883 6.262 8.655
36.00 7.910 6.305 8.663
36.25 7.937 6.347 8.672
36.50 7.963 6.389 8.680
36.75 7.988 6.431 8.687
37.00 8.013 6.472 8.695
37.25 8.037 6.513 8.702
37.50 8.060 6.553 8.709
37.75 8.083 6.593 8.715
38.00 8.105 6.633 8.722
38.25 8.127 6.672 8.728
38.50 8.148 6.710 8.733
38.75 8.168 6.748 8.739
39.00 8.188 6.786 8.744
39.25 8.208 6.823 8.749
39.50 8.227 6.860 8.754
39.75 8.245 6.896 8.759
40.00 8.263 6.932 8.764
40.25 8.280 6.967 8.768
40.50 8.297 7.002 8.772
40.75 8.314 7.036 8.776
41.00 8.330 7.070 8.780
41.25 8.346 7.103 8.784
41.50 8.361 7.136 8.787
41.75 8.376 7.168 8.791
42.00 8.390 7.200 8.794
42.25 8.404 7.231 8.797
42.50 8.417 7.262 8.800
42.75 8.431 7.293 8.803
43.00 8.443 7.323 8.806
43.25 8.456 7.352 8.808
43.50 8.468 7.381 8.811
43.75 8.480 7.410 8.813
44.00 8.491 7.438 8.815
44.25 8.502 7.466 8.818
44.50 8.513 7.493 8.820
44.75 8.524 7.520 8.822
45.00 8.534 7.546 8.824
45.25 8.544 7.572 8.826
45.50 8.553 7.598 8.828
45.75 8.563 7.623 8.829
46.00 8.572 7.647 8.831
46.25 8.581 7.672 8.833
46.50 8.589 7.695 8.834
46.75 8.597 7.719 8.836
47.00 8.605 7.742 8.837
47.25 8.613 7.764 8.838
47.50 8.621 7.787 8.840
47.75 8.628 7.808 8.841
48.00 8.635 7.830 8.842
48.25 8.642 7.851 8.843
48.50 8.649 7.871 8.844
48.75 8.656 7.892 8.845
49.00 8.662 7.912 8.846
49.25 8.668 7.931 8.847
49.50 8.674 7.950 8.848
49.75 8.680 7.969 8.849
50.00 8.686 7.987 8.850
Source:

R.C. Benedict, T. Partridge, D. Wells and R.L. Buchanan, Bacillus cereus: Aerobic Growth Kinetics:  Journal of Food Protection (1993) 56(3):211-214