Table 1. Sensitivity tests for the Lactobacillus sakei and Enterococcus faecalis strains isolated from dry-aged beef against 6 antibiotics

Variable	E. faecalis 12D26	E. faecalis 20D48	L. sakei 20D49	E. faecalis 30D36
Ampicillin	I	S	S	I
Chloramphenicol	S	S	S	S
Kanamycin	R	R	I	R
Penicillin	S	S	S	S
Tetracycline	R	R	S	R
Vancomycin	S	S	R	S

Antibiotic discs included ampicillin (10 μg), chloramphenicol (30 μg), kanamycin (30 μg), penicillin (10 μg), tetracycline (30 μg) and vancomycin (30 μg).
Antibiotic resistance was evaluated by disc diffusion (inhibition zone diameter); S: >20 (mm), I: 15–19 (mm), R: ≤14 (mm).
S, susceptible; I, intermediate; R, resistant.