Table 1. MIC50 and MIC90 of four common biocides for 3327 microbial isolates.
Species | Na | TRIb | CHXb | BZCb | NaOClb | ||||||||||||
MIC (0.015–128)c | MBC (0.015–512)c | MIC (0.5–64)c | MBC (0.5–64)c | MIC (0.5–128)c | MBC (0.5–128)c | MIC (0.125–32) | MBC (0.125–32) | ||||||||||
50 | 90 | 50 | 90 | 50 | 90 | 50 | 90 | 50 | 90 | 50 | 90 | 50 | 90 | 50 | 90 | ||
Salmonella spp. | 901 | 0.06 | 0.12 | 1 | 2 | 32 | 64 | 64 | 64 | 16 | 16 | 16 | 32 | 2 | 2 | 2 | 4.1 |
E. coli | 368 | 0.12 | 0.5 | 1 | 4 | 4 | 16 | 8 | 16 | 16 | 32 | 16 | 32 | 4.1 | 4.1 | 8.2 | 8.2 |
K. pneumoniae | 60 | 0.12 | 1 | 1 | 2 | 8 | 32 | 8 | >32 | 8 | 16 | 8 | 16 | 8.2 | 8.2 | 8.2 | 8.2 |
Enterobacter spp. | 54 | 0.12 | 0.5 | 1 | 2 | 8 | 64 | 8 | 64 | 16 | 32 | 32 | 64 | 4.1 | 4.1 | 4.1 | 4.1 |
S. aureus | 1635 | 0.03 | 0.06 | 0.12 | 0.25 | 2 | 4 | 4 | 8 | 2 | 4 | 2 | 4 | 1 | 2 | 2 | 4.1 |
E. faecium | 53 | 8 | 8 | 16 | 16 | 8 | 16 | 16 | 32 | 4 | 8 | 4 | 8 | 8.2 | 8.2 | 8.2 | 16.4 |
E. faecalis | 56 | 8 | 8 | 16 | 16 | 32 | 32 | 32 | 64 | 2 | 4 | 8 | 8 | 4.1 | 8.2 | 4.1 | 8.2 |
C. albicans | 200 | 4 | 8 | 8 | 8 | 8 | 8 | 8 | 16 | 4 | 4 | 8 | 16 | 4.1 | 4.1 | 4.1 | 8.2 |
N: number of strains.
TRI, CHX and BZC, concentration as expressed in mg/L. For NaOCl concentration is expressed as g/L of active chlorine.
Range of tested concentrations. TRI, CHX and BZC, concentration as expressed in mg/L. For NaOCl concentration is expressed as g/L of active chlorine.