Table 2. Inhibition zones (cm) resulted by autochthonous lactic acid cultures on Mueller–Hinton agar against the reference strains of sanitary indicators (mean ± standard deviation).
| Salmonella enterica serovar Typhimurium ATCC 14028 | Staphylococcus aureus ATCC 25923 | Escherichia coli ATCC 25922 | ||||
|---|---|---|---|---|---|---|
| Autochthonous lactic acid cultures | Zone of inhibition (cm) | Inhibitory effect (%) | Zone of inhibition (cm) | Inhibitory effect (%) | Zone of inhibition (cm) | Inhibitory effect (%) |
| L. plantarum CNPC001 | 0.00 ± 0.00a | 0.00 ± 0.00a | 0.25 ± 0.35b | 20.83 ± 29.42a | 0.25 ± 0.07ab | 50.00 ± 14.14a |
| L. plantarum CNPC002 | 0.00 ± 0.00a | 0.00 ± 0.00a | 0.35 ± 0.21b | 27.98 ± 19.36a | 0.10 ± 0.14b | 20.00 ± 28.28a |
| L. plantarum CNPC003 | 0.00 ± 0.00a | 0.00 ± 0.00a | 0.55 ± 0.78b | 10.71 ± 15.15a | 0.00 ± 0.00a | 0.00 ± 0.00a |
| L. plantarum CNPC004 | 0.20 ± 0.00a | 16.78 ± 1.97a | 0.30 ± 0.00b | 23.21 ± 2.53a | 0.13 ± 0.18b | 25.00 ± 35.36a |
| L. plantarum CNPC020 | 0.25 ± 0.07b | 20.63 ± 3.46b | 0.33 ± 0.18b | 24.40 ± 10.94a | 0.25 ± 0.07b | 50.00 ± 14.14a |
| L. mucosae CNPC007 | 0.25 ± 0.06b | 20.87 ± 7.76b | 0.30 ± 0.00b | 23.21 ± 2.530a | 0.15 ± 0.21ab | 30.00 ± 42.43a |
| L. rhamnosus EM1107 | 0.15 ± 021a | 12.5 ± 17.68a | 0.20 ± 0.00b | 19.14 ± 6.86a | 0.11 ± 0.15b | 22.00 ± 31.11 |
| Positive control (Liquid) | 1.00 ± 0.00c | 100 | 1.30 ± 0.14a | 100 | 0.43 ± 0.25b | 100 |
| Positive control (Disc) | 1.30 ± 0.00c | 0.65 ± 0.21b | 0.70 ± 0.00a | |||
Note:
Different lowercase letters denote that trials differ significantly P < 0.05 by Fisher’s LSD test (the exact P values are shown in the Data S1).