Table 4.
Determination of minimal inhibitory concentration (MIC) against the LAB strains.
Strains | MICs (μg/ml) |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
CIP | CMP | VAN | ERY | STR | CLI | GEN | AMP | TET | KAN | |
Lactobacillus sakei MBSa1 bac+ | < 0.5 | 1 | > 20 | 5 | 5 | < 0.5 | 1 | 5 | 10 | < 0.5 |
Lactobacillus curvatus MBSa3 bac+ | 20 | > 20 | < 0.5 | 10 | 10 | < 0.5 | <0.5 | < 0.5 | 10 | < 0.5 |
Lactococcus lactis VB69 bac+ | 1 | 10 | 10 | 5 | 5 | < 0.5 | 5 | 1 | 5 | 5 |
Lactobacillus casei 40 bac- | 1 | > 20 | >20n.r | > 20 | 20 | < 0.5 | 1 | 0.5 | < 0.5 | 0.5 |
Lactobacillus helveticus 352 bac- | < 0.5 | <0.5 | < 0.5 | 5 | 5 | < 0.5 | 1 | 0.5 | < 0.5 | <0.5 |
Lactococcus lactis 368 bac- | 1 | 10 | > 20 | 10 | 10 | < 0.5 | 5 | 10 | 10 | < 0.5 |
Weissella virisdescens 113 bac- | < 0.5 | 1 | <0.5 | 1 | 1 | < 0.25 | 1 | 0.5 | 20 | < 0.5 |
CIP, ciprofloxacin; CMP, chloramphenicol; VAN, vancomycin; ERY, erythromycin, STR, streptomycin; CLI, clindamycin; GEN, gentamicin; AMP, ampicillin; TET, tetracycline; and KAN, kanamycin.
Resistant strains with an MIC value higher than the breakpoints described in the table are indicated in bold.
nr, not required.