All L. monocytogenes wild-type isolates tested showed a clear induction of lecithinase activity in charcoal-supplemented medium (CEYM), while nonpathogenic Listeria spp. remained negative in CEYM
All L.monocytogenes wild-type isolates tested showed a clear induction of lecithinase activity in charcoal-supplemented medium(CEYM), while nonpathogenic Listeria spp. remained negative in CEYM