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Table 1 Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values of nisin, licorice polyphenols (glabridin, licoricidin, licochalcone A), and chlorhexidine against three strains of E. faecalis

From: Biocompatible combinations of nisin and licorice polyphenols exert synergistic bactericidal effects against Enterococcus faecalis and inhibit NF-κB activation in monocytes

Compound

Concentration of compound (µg/mL)

ATCC 19433

0DOT

1DOT

Nisin

 MIC

12.5

25

25

 MBC

25

50

50

Glabridin

 MIC

25

25

25

 MBC

100

50

50

Licoricidin

 MIC

6.25

12.5

6.25

 MBC

50

200

100

Licochalcone A

 MIC

12.5

12.5

12.5

 MBC

100

200

200

Chlorhexidine

 MIC

6.25

6.25

6.25

 MBC

50

50

50