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Table 1 MIC, MBC, MBIC and MBEC determinations for nisin and supplemented guar-gum gel solutions, against 20 enterococci isolated from dogs with PD

From: Potential of two delivery systems for nisin topical application to dental plaque biofilms in dogs

Strain identification Nisin solution (μg/mL) Supplemented guar-gum gel solution (μg/mL)
MIC MBC MBIC MBEC MIC MBC MBIC MBEC
M2b
E. faecalis 12.75 73.00 8.25 13.00 21.25 53.75 14.50 29.25
M2c
E. faecalis 15.75 85.50 8.00 31.00 22.50 75 20.25 43.75
M3b
E. faecalis 14.75 60.25 14.00 57.00 17.25 61.00 11.50 22.00
M3d
E. faecalis 15.75 82.25 14.00 50.00 22.00 79.75 15.50 33.25
M4a
E. faecalis 21.50 98.50 15.75 25.00 32.75 68.75 12.00 16.25
M4c
E. faecalis 26.75 + 100 8.00 33.25 18.75 61.00 23.00 43.75
M15b
E. faecalis 19.25 77.00 22.25 59.00 23.50 27.75 7.50 10.75
M15d
E. faecalis 15.25 86.50 22.25 77.75 25.00 73.00 11.25 17.50
M21a
E. faecalis 12.50 59.75 14.00 39.00 25.00 47.00 8.25 17.50
M21c
E. faecalis 16.00 46.25 11.75 37.50 33.25 58.25 14.25 17.50
M23a
E. faecalis 12.50 64.50 10.75 26.50 29.75 64.00 14.50 18.50
M23c
E. faecalis 12.50 54.25 16.75 41.75 27.00 58.25 18.75 18.75
M25a
E. faecalis 12.50 91.25 11.75 36.75 23.75 56.25 14.50 33.25
M25c
E. faecalis 12.50 72.25 11.50 37.50 18.75 90.25 7.50 23.75
M28a
E. faecium 10.50 48.50 NA NA 25.00 64.50 NA NA
M28d
E. faecium 8.50 37.50 NA NA 26.25 78.75 NA NA
M29b
E. faecalis 12.50 41.00 10.50 72.25 23.50 62.50 5.75 6.50
M29c
E. faecium 12.50 39.25 NA NA 18.75 54.75 NA NA
M32a
E. faecalis 17.50 79.25 16.75 41.75 27.00 66.75 5.75 12.50
M32b
E. faecalis 16.25 69.25 15.00 40.75 31.25 60.50 7.00 7.00
E. faecalis ATCC® 29,212 15.00 + 100 20.00 60.25 25.00 29.25 16.75 68.75
Average 14.90 66.63 13.60 42.34 24.61 63.09 12.46 21.87
SD 4.10 19.55 4.31 16.61 4.64 13.22 5.16 11.33
  1. M mouth, SD standard deviation, NA not applicable, MIC minimum inhibitory concentration, MBC minimum bactericidal concentration, MBIC minimum biofilm inhibitory concentration, MBEC minimum biofilm eradication concentration