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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

From: Strain-specific probiotic properties of lactic acid bacteria and their interference with human intestinal pathogens invasion

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)
  1. Gen gentamicin 10 µg, W trimethoprim 5 µg, Strep streptomycin 10 µg, – no visible growth inhibition