Select A Pathogen Model
Model >> Bacterium
Bacteria >> Model

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.

Ok

Growth of Listeria monocytogenes in Ground Ham

Input Conditions

Range: 6 to 36 °C
Range: 1.0 to 4.2 %
Range: 0.05 to 0.20 %
Range: 1.0 to 3.0 log(CFU/g)

*No growth when temperature is below 6°C (43 °F).

Line chart of data points for modeled growth. Also available in a table format below the chart.
Modeled Growth Parameters
  • Lag Phase Duration: 52.53 (hours)
  • Generation Time: 8.84 (hours)
  • Growth Rate: 0.0341 (log(cfu/g)/h)
Modeled Growth
Hours log(CFU/g)
Lag No Lag
0.00 1.00 1.00
1.00 1.00 1.03
2.00 1.00 1.07
3.00 1.00 1.10
4.00 1.00 1.14
5.00 1.00 1.17
6.00 1.00 1.20
7.00 1.01 1.24
8.00 1.01 1.27
9.00 1.01 1.31
10.00 1.01 1.34
11.00 1.01 1.37
12.00 1.01 1.41
13.00 1.01 1.44
14.00 1.01 1.48
15.00 1.02 1.51
16.00 1.02 1.54
17.00 1.02 1.58
18.00 1.02 1.61
19.00 1.02 1.65
20.00 1.03 1.68
21.00 1.03 1.72
22.00 1.03 1.75
23.00 1.03 1.78
24.00 1.04 1.82
25.00 1.04 1.85
26.00 1.04 1.89
27.00 1.05 1.92
28.00 1.05 1.95
29.00 1.06 1.99
30.00 1.06 2.02
31.00 1.07 2.06
32.00 1.07 2.09
33.00 1.08 2.12
34.00 1.09 2.16
35.00 1.09 2.19
36.00 1.10 2.23
37.00 1.11 2.26
38.00 1.12 2.29
39.00 1.12 2.33
40.00 1.13 2.36
41.00 1.14 2.40
42.00 1.15 2.43
43.00 1.16 2.46
44.00 1.17 2.50
45.00 1.19 2.53
46.00 1.20 2.57
47.00 1.21 2.60
48.00 1.23 2.63
49.00 1.24 2.67
50.00 1.26 2.70
51.00 1.27 2.74
52.00 1.29 2.77
53.00 1.31 2.81
54.00 1.32 2.84
55.00 1.34 2.87
56.00 1.36 2.91
57.00 1.38 2.94
58.00 1.40 2.98
59.00 1.42 3.01
60.00 1.44 3.04
61.00 1.47 3.08
62.00 1.49 3.11
63.00 1.51 3.15
64.00 1.54 3.18
65.00 1.56 3.21
66.00 1.59 3.25
67.00 1.61 3.28
68.00 1.64 3.32
69.00 1.66 3.35
70.00 1.69 3.38
71.00 1.72 3.42
72.00 1.75 3.45
73.00 1.78 3.49
74.00 1.80 3.52
75.00 1.83 3.55
76.00 1.86 3.59
77.00 1.89 3.62
78.00 1.92 3.66
79.00 1.95 3.69
80.00 1.98 3.72
81.00 2.01 3.76
82.00 2.04 3.79
83.00 2.08 3.83
84.00 2.11 3.86
85.00 2.14 3.89
86.00 2.17 3.93
87.00 2.20 3.96
88.00 2.23 4.00
89.00 2.27 4.03
90.00 2.30 4.07
91.00 2.33 4.10
92.00 2.36 4.13
93.00 2.40 4.17
94.00 2.43 4.20
95.00 2.46 4.24
96.00 2.49 4.27
97.00 2.53 4.30
98.00 2.56 4.34
99.00 2.59 4.37
100.00 2.63 4.41
101.00 2.66 4.44
102.00 2.69 4.47
103.00 2.73 4.51
104.00 2.76 4.54
105.00 2.79 4.58
106.00 2.83 4.61
107.00 2.86 4.64
108.00 2.89 4.68
109.00 2.93 4.71
110.00 2.96 4.75
111.00 3.00 4.78
112.00 3.03 4.81
113.00 3.06 4.85
114.00 3.10 4.88
115.00 3.13 4.92
116.00 3.16 4.95
117.00 3.20 4.98
118.00 3.23 5.02
119.00 3.27 5.05
120.00 3.30 5.09
121.00 3.33 5.12
122.00 3.37 5.15
123.00 3.40 5.19
124.00 3.44 5.22
125.00 3.47 5.26
126.00 3.50 5.29
127.00 3.54 5.32
128.00 3.57 5.36
129.00 3.61 5.39
130.00 3.64 5.42
131.00 3.67 5.46
132.00 3.71 5.49
133.00 3.74 5.53
134.00 3.78 5.56
135.00 3.81 5.59
136.00 3.84 5.63
137.00 3.88 5.66
138.00 3.91 5.69
139.00 3.95 5.73
140.00 3.98 5.76
141.00 4.01 5.80
142.00 4.05 5.83
143.00 4.08 5.86
144.00 4.12 5.90
145.00 4.15 5.93
146.00 4.18 5.96
147.00 4.22 6.00
148.00 4.25 6.03
149.00 4.29 6.06
150.00 4.32 6.10
151.00 4.35 6.13
152.00 4.39 6.16
153.00 4.42 6.19
154.00 4.46 6.23
155.00 4.49 6.26
156.00 4.52 6.29
157.00 4.56 6.32
158.00 4.59 6.36
159.00 4.63 6.39
160.00 4.66 6.42
161.00 4.69 6.45
162.00 4.73 6.48
163.00 4.76 6.51
164.00 4.80 6.55
165.00 4.83 6.58
166.00 4.86 6.61
167.00 4.90 6.64
168.00 4.93 6.67
169.00 4.97 6.70
170.00 5.00 6.73
171.00 5.03 6.76
172.00 5.07 6.79
173.00 5.10 6.82
174.00 5.14 6.84
175.00 5.17 6.87
176.00 5.20 6.90
177.00 5.24 6.93
178.00 5.27 6.95
179.00 5.30 6.98
180.00 5.34 7.01
181.00 5.37 7.03
182.00 5.41 7.06
183.00 5.44 7.08
184.00 5.47 7.10
185.00 5.51 7.13
186.00 5.54 7.15
187.00 5.58 7.17
188.00 5.61 7.19
189.00 5.64 7.21
190.00 5.68 7.23
191.00 5.71 7.25
192.00 5.74 7.27
193.00 5.78 7.29
194.00 5.81 7.31
195.00 5.84 7.32
196.00 5.88 7.34
197.00 5.91 7.36
198.00 5.94 7.37
199.00 5.98 7.38
200.00 6.01 7.40
201.00 6.04 7.41
202.00 6.08 7.42
203.00 6.11 7.43
204.00 6.14 7.45
205.00 6.18 7.46
206.00 6.21 7.47
207.00 6.24 7.48
208.00 6.27 7.48
209.00 6.31 7.49
210.00 6.34 7.50
211.00 6.37 7.51
212.00 6.40 7.51
213.00 6.44 7.52
214.00 6.47 7.53
215.00 6.50 7.53
216.00 6.53 7.54
217.00 6.56 7.54
218.00 6.59 7.55
219.00 6.62 7.55
220.00 6.65 7.56
221.00 6.68 7.56
222.00 6.71 7.56
223.00 6.74 7.57
224.00 6.77 7.57
225.00 6.80 7.57
226.00 6.83 7.58
227.00 6.86 7.58
228.00 6.89 7.58
229.00 6.91 7.58
230.00 6.94 7.58
231.00 6.97 7.59
232.00 6.99 7.59
233.00 7.02 7.59
234.00 7.04 7.59
235.00 7.07 7.59
236.00 7.09 7.59
237.00 7.12 7.60
238.00 7.14 7.60
239.00 7.16 7.60
240.00 7.18 7.60
241.00 7.20 7.60
242.00 7.22 7.60
243.00 7.24 7.60
244.00 7.26 7.60
245.00 7.28 7.60
246.00 7.30 7.60
247.00 7.32 7.60
248.00 7.33 7.60
249.00 7.35 7.60
250.00 7.36 7.60
Source:

Hwang C.A, Tamplin M.L. (2007) Modeling the Lag Phase and Growth Rate of Listeria monocytogenes in Ground Ham Containing Sodium Lactate and Sodium Diacetate at Various Storage Temperatures. Journal of Food Science 72(7):M246-M253 http://www.ars.usda.gov/research/publications/publications.htm?SEQ_NO_115=204497