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. 2006 Oct;72(10):6493–6502. doi: 10.1128/AEM.00876-06

TABLE 1.

Minimum C(θ) and AIC values for the different survival curves of S. enterica serovar Typhimurium and L. monocytogenesa

Organism Culture phase Repetition Length of incubation of subculture (min) n C(θ)
SL AIC
Model 1 Model 2 Model 3 Model 1 Model 2 Model 3
S. enterica serovar Beginning of exponential 1 100 13 0.119 0.082 0.089 0.92 −14.11 −16.85 17.93
    Typhimurium Mid-exponential 1 200 16 0.742 0.677 0.751 1.65 6.31 6.84 6.49
End of exponential 1 300 19 1.796 1.602 1.602 0.00 19.13 18.96 16.96
2 300 20 1.131 0.984 1.027 0.03 11.33 9.38 7.41
Deceleration of exponential 1 400 24 1.054 1.069 1.115 1.00 3.12 5.45 4.46
2 400 22 0.822 0.784 0.784 0.02 2.14 1.09 0.90
Early stationary 1 720 38 0.825 0.772 0.874 4.73 27.67 −28.22 −25.49
2 720 33 1.246 1.039 1.108 2.11 −2.48 −8.44 8.33
Late stationary 1 1,020 31 2.067 1.018 1.122 3.00 14.04 −5.91 4.91
2 1,020 34 1.510 1.085 1.085 0.00 2.61 −8.62 10.62
L. monocytogenes Beginning of exponential 1 100 11 0.452 0.455 0.460 0.14 6.15 8.22 6.35
Mid-exponential 1 200 16 1.076 1.045 1.046 0.01 12.25 13.78 11.79
End of exponential 1 300 33 7.618 0.887 0.887 0.01 55.29 −13.69 15.69
2 300 29 0.689 0.549 0.552 6.58 −14.13 −20.70 22.54
Deceleration of exponential 1 400 30 1.452 1.196 1.444 5.65 4.31 0.48 4.13
2 400 48 3.244 2.324 2.326 0.03 18.90 2.89 0.92
Early stationary 1 720 32 0.560 0.542 0.571 1.72 28.65 −27.70 −27.99
2 720 41 1.592 0.361 0.591 20.15 −4.84 −65.63 47.48
Late stationary 1 1,020 36 1.069 1.057 1.059 0.04 −14.44 −12.82 14.78
2 1,020 46 2.655 0.812 0.935 6.50 9.35 −43.17 38.67
a

The SL values are related to the simplification of model 2 used to obtain model 3; boldface SL values represent rejection of the simplification. Boldface C(θ) and AIC values are the best C(θ) and AIC values.