Preliminary In Vitro Evaluation of the Probiotic Potential of the Bacteriocinogenic Strain Enterococcus lactis PMD74 Isolated from Ezine Cheese

Table 3

Antibiotic susceptibility of E. lactis PMD74 and S. aureus ATCC 6538.

Group number^a	Antibiotic	Concentration (μg/mL) (Oxoid)	Strains^b
			E. lactis PMD74	S. aureus ATCC 6538
I	Penicillin G	10 U	S	R
	Ampicillin	10	S	R
	Vancomycin	30	S	R
II	Gentamicin	10	S	R
	Kanamycin	30	R	R
	Streptomycin	10	R	R
	Tetracycline	30	S	S
	Chloramphenicol	30	S	S
	Erythromycin	15	I	R
	Clindamycin	2	R	R
	Tylosin	30	S	R
III	Rifampicin	5	S	R

^aGroup I: cell wall synthesis inhibitors; group II: protein synthesis inhibitors; group III: nucleic acid synthesis inhibitors. ^bSusceptibility is expressed as resistant (R), intermediate (I), and sensitive (S) (CLSI, 2012, EFSA 2018).