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Table 2 Antibiotic discs (Oxoid) used in the antibiotic susceptibility test (source from Flórez et al., 2005)

From: Lactococcus lactis M4, a potential host for the expression of heterologous proteins

Antibiotic

Concentration

Mechanism

Aminoglycoside

 

Interfere with protein synthesis

Gentamicin

10 μg

 

Kanamycin

30 μg

 

Neomycin

30 μg

 

Streptomycin

10 μg

 

Coumarin-glycoside

 

Interfere with DNA synthesis

Novobiocin

30 μg

 

Penicillin/β-lactam

 

Interfere with cell wall synthesis

Ampicillin

10 μg

 

Cefamandole

30 μg

 

Penicillin G

10 units

 

Macrolide

 

Interfere with protein synthesis

Erythromycin

15 μg

 

Peptide

 

Interfere with cell wall synthesis

Bacitracin

10 units

 

Polymyxin B

300 units

 

Phenicole

 

Interfere with protein synthesis

Chloramphenicol

30 μg

 

Quinolone

 

Interfere with DNA synthesis

Nalidixic acid

30 μg

 

Tetracycline

 

Interfere with protein synthesis

Oxytetracycline

30 μg

 

Tetracycline

30 μg

 

Other

  

Nitrofurantoin

300 μg

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