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Table 8 Antimicrobial susceptibility (MIC values) of L. gasseri HHuMIN D

From: Oral probiotic activities and biosafety of Lactobacillus gasseri HHuMIN D

Classification

Antimicrobial agent

(MIC values, µg/mL)

Cut-off of Lactobacillus (EFSAa)

Strain

Lactobacillus obligate homofermenta tiveb

Lactobacillus obligate heterofermentativec

L. gasseri HHuMIN D

E. faecium ATCC 29,212

β-Lactam group

Penicillin G

  

0.063

0.5

Carbenicllin (disodium salt)

  

0.5

8

Methicillin

  

2

16

Ampicillin (sodium salt)

1

2

0.25

0.25

Dicloxacillin sodium salt hydrate

  

0.5

4

Aminoglycoside group

Gentamicin (sulfate)

16

16

32

256

Streptomycin (sulfate salt)

16

64

64

 > 256

Kanamycin (sulfate)

16

32

512

256

Neomycin (sulfate)

  

256

1024

Cephem group

Cephalothin (sodium salt)

  

1

16

Tetracycline group

Tetracycline

4

4

4

32

Peptide group

Polymyxin B (sulfate salt)

  

 > 1024

 > 1024

Bacitracin

  

64

 

Macrolide group

Erythromycin

1

1

0.5

8

Synthetic antimicrobial group

Metronidazole

  

 > 256

 > 256

The other group

Vancomycin (HCl)

2d

n.r

0.5

2

Chloramphenicol

4

4

2

8

Lincomycin (hydrochloride)

  

4

 

Rifampicin

  

 < 0.125

0.5

Clindamycin (hydrochloride)

1

1

0.5

 > 16

Phosphomycin (disodium salt)

  

 > 1024

32

Mupirocin

  

16

64

Trimethoprim-Sulfamethoxazole

(Co-trimoxazole)

  

 > 256

32

  1. n.r. not required.
  2. aData from EFSA (2012)
  3. bincluding L. delbrueckii, L. helveticus, L. gasseri
  4. cincluding L. fermentum
  5. dnot required for L. salivarius