Table 3. Predicted (P) and observed population (O) of foodborne pathogens at different fat content and accuracy factors (Af) and bias factors (Bf)

RH (%) Time (min) Verification
0 1 5 10 15 20 Af Bf
E1) 60 P 7.10 6.63 6.04 6.04 5.88 5.75 1.191 0.973
O 7.10 ± 0.112) 6.53 ± 0.15 6.12 ± 0.22 5.98 ± 0.31 5.92 ± 0.47 5.85 ± 0.39
80 P 7.10 6.50 6.05 5.76 5.56 5.40 1.197 1.052
O 7.10 ± 0.11 6.41 ± 0.18 6.10 ± 0.14 5.85 ± 0.27 5.48 ± 0.24 5.32 ± 0.30
S 60 P 6.98 6.62 6.12 5.73 5.43 5.17 1.180 1.028
O 6.98 ± 0.25 6.58 ± 0.31 6.22 ± 0.38 5.65 ± 0.40 5.34 ± 0.42 5.25 ± 0.24
80 P 6.98 6.62 6.12 5.73 5.42 5.16 1.169 1.086
O 6.98 ± 0.25 6.55 ± 0.35 6.20 ± 0.17 5.69 ± 0.36 5.31 ± 0.31 5.12 ± 0.58
L 60 P 6.10 5.79 5.40 5.10 4.87 4.68 1.177 1.091
O 6.10 ± 0.30 5.72 ± 0.25 5.48 ± 0.27 5.04 ± 0.21 4.89 ± 0.51 4.62 ± 0.31
80 P 6.10 5.76 5.33 5.01 4.76 4.54 1.112 1.081
O 6.10 ± 0.30 5.79 ± 0.30 5.28 ± 0.45 4.94 ± 0.17 4.72 ± 0.12 4.50 ± 0.18
E, E. coli O157:H7; S, S. Typhimurium; L, L. monocytogenes.
Mean ± standard deviation.