Table 2.
Antimicrobial activity of the cell-free supernatants (CFCSs) produced by the different LAB strains toward human intestinal pathogens strains performed by agar well diffusion method
| CFCSs | Inhibition zone (mm ± sd) | ||||
|---|---|---|---|---|---|
|
S. enteritidis
ATCC 13076 |
L. monocytogenes
ATCC 7644 |
E. coli O157: H7 ATCC 35150 |
C. sakazakii
ATCC 29544 |
C. jejuni
ATCC 33291 |
|
| B. bifidum W23 | – | 10.1 ± 0.25 | 11.0 ± 0.35 | 12.1 ± 0.25 | 12.1 ± 0.32 |
| L. salivarius W24 | 10.1 ± 0.32 | – | – | 10.2 ± 0.11 | 10.1 ± 0.28 |
| L. acidophilus W37 | – | 11.1 ± 0.12 | – | – | 12.1 ± 0.36 |
| L. casei W56 | – | 11.1 ± 0.51 | – | 10.2 ± 0.21 | 17.1 ± 0.21 |
| L. lactis W58 | 11.0 ± 0.15 | 11.0 ± 0.27 | 12.0 ± 0.28 | 11.1 ± 0.15 | 10.5 ± 0.51 |
| L. plantarum W21 | 10.1 ± 0.31 | 14.1 ± 0.34 | 10.0 ± 0.20 | 10.1 ± 0.28 | 13.5 ± 0.52 |
| L. rhamnosus W71 | 10.1 ± 0.24 | 12.1 ± 0.31 | 11.0 ± 0.15 | 10.2 ± 0.25 | 17.2 ± 0.21 |
| Positive control | 16.3 ± 0.53 (Gen) | 19.3 ± 0.63 (W) | 15.6 ± 0.64 (Gen) | 16.3 ± 0.52 (Strep) | 32 ± 0.51 (Gen) |
Gen gentamicin 10 µg, W trimethoprim 5 µg, Strep streptomycin 10 µg, – no visible growth inhibition