Research Article

Inhibitory Substances Produced by Native Lactobacillus plantarum UTNCys5-4 Control Microbial Population Growth in Meat

Table 1

Antibiotic susceptibility of bacteria originated from raw beef meat.

AntimicrobialsBreakpoints (CLSI, 2017) R/I/S (mm)% of resistance
E. coli (n = 225)Salmonella sp. (n = 150)Shigella sp. (n = 225)

TetracyclinesTetracycline (30 μg)≤11/12–14/≥1517.7844.4444.44
β-Lactam-lactamase inhibitor combinationsAmpicillin (10 μg)≤13/14–16/≥1744.4444.4455.56
Amoxicillin (25 μg)≤13/14–17/≥1813.3333.3344.44
Amoxicillin/clavulanic acid (20/10 μg)≤19/-/≥2033.3333.3353.33
AminoglycosideKanamycin (30 μg)≤13/14–17/≥1822.22033.33
Gentamycin (10 μg)≤12/13–14/≥1517.7811.110
CephalosporinsCefuroxime (30 μg)≤16/72–19/≥2055.5655.5655.56

% was calculated as number of resistant bacteria/number of isolates. R = resistant; I = intermediate resistant; S = susceptible.