Table 2 Presence/Absence of E. coli in apple juice stored at 4°C. Results (in duplicate) were obtained by enrichment of samples from the experiment illustrated in Figure 2.
From: Carvacrol and p-cymene inactivate Escherichia coli O157:H7 in apple juice
Antimicrobial treatment | Time (days) | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | |
Control, no additions | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Control, E. coli O157:H7 inoculated | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | - |
Carvacrol, 0.5 mM | + | + | + | + | + | + | + | ± | - | - | - | - | - | - | - | - | - | - | - | - | - |
Cymene, 0.25 mM | + | + | + | + | + | + | + | + | + | + | ± | + | ± | ± | + | - | - | - | - | - | - |
Carvacrol (0.5 mM) plus cymene (0.25 mM) | + | + | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |