Survival of Unstressed and Acid-, Cold-, and Starvation-Stress-Adapted Listeria monocytogenes in Ham Extract with Hops Beta Acids and Consumer Acceptability of HBA on Ready-to-Eat Ham
Table 1
Comparison of RMSE and AIC for the proposed models fitting the growth of unstressed or acid-, cold-, and starvation-stress-adapted Listeria monocytogenes in the presence of hops beta acids (HBA) in ham extract.
Stress types
HBA (mg/L)
Reduced growth model
Full growth model
No lag phase
Reduced Huang
Reduced Barany
Buchanan two-phase linear
Huang
Baranyi
Modified Gompertz
Buchanan three-phase linear
Unstressed
0
RMSE
0.346
0.593
0.580
0.593
0.234
0.238
0.265
0.211
AIC
−44.214
−18.300
−19.320
−18.300
−61.009
−60.207
−55.032
−66.168
4.44
RMSE
—
0.299
0.297
0.300
0.290
0.291
0.290
—
AIC
—
−51.095
−48.294
−51.022
−50.866
−50.623
−50.713
—
10.0
RMSE
—
0.629
0.635
0.629
—
0.643
—
—
AIC
—
−15.486
−15.008
−15.474
—
−12.545
—
—
Acid
0
RMSE
0.291
—
0.738
0.804
0.178
0.152
0.184
1.161
AIC
−52.482
—
−7.813
−3.679
−74.253
−81.857
−72.522
15.801
4.44
RMSE
0.321
—
0.679
0.708
0.209
0.176
0.245
0.169
AIC
−47.684
—
−11.814
−9.806
−66.629
−74.901
−58.848
−76.699
10.0
RMSE
0.469
0.581
0.603
0.581
0.302
0.313
0.330
—
AIC
−29.520
−19.302
−17.465
−19.306
−48.834
−47.104
−44.580
—
Cold
0
RMSE
0.158
—
0.918
1.489
—
0.162
0.249
0.691
AIC
−81.759
—
2.708
25.898
—
−78.793
−58.080
−9.139
4.44
RMSE
0.108
—
0.848
1.379
—
0.106
0.218
0.736
AIC
−100.221
—
−1.093
22.216
—
−99.284
−64.410
−6.110
10.0
RMSE
0.209
—
0.777
1.053
0.208
0.206
0.258
0.892
AIC
−68.320
—
−5.309
9.263
−66.632
−67.189
−56.481
3.147
Starvation
0
RMSE
0.544
—
1.103
1.174
0.354
0.343
0.365
0.357
AIC
−22.455
—
11.520
14.489
−41.242
−42.801
−39.817
−40.759
4.44
RMSE
0.464
—
1.012
1.043
0.216
0.189
0.251
0.263
AIC
−30.056
—
7.391
8.824
−64.852
−71.459
−57.782
−55.544
10.0
RMSE
0.792
0.815
0.843
0.815
0.523
0.524
0.529
0.544
AIC
−4.420
−3.016
−1.396
−3.004
−22.488
−22.429
−21.937
−20.591
Note. RMSE: root mean sum of squared errors; AIC: Akaike Information Criterion (the smaller the better); “—”: model is unlikely for the data.