Safety Characterization and Antimicrobial Properties of Kefir-Isolated Lactobacillus kefiri

Table 2

Antimicrobial activity of Lactobacillus kefiri strains against pathogens by agar spot test.

Growth inhibition ability
Strain	CIDCA 8321	CIDCA 8345	CIDCA 8348	CIDCA 83115	CIDCA 83111	CIDCA 83113
Gram negative bacilli
Pseudomona aeruginosa	++	+	++	+	+	+
Salmonella Enteritidis	+	−	+	−	+	+
Shigella flexneri	+	−	+	−	+	−
EHEC	−	−	−	−	−	−
Gram positive bacilli
Listeria monocytogenes	+	−	+	−	+	−
Bacillus cereus	++	+	++	+	+	++
Gram positive cocci
Enterococcus faecalis	+	−	+	−	−	−
Staphylococcus aureus	++	+	++	+	++	+