Table 1.
Minimum inhibitory and biocidal concentration (MIC/MBC) of hop-derived compounds against selected S. aureus strains, determined by a microdilution broth assay accompanied by assessment of bacterial growth on solid media.
[mg/mL] | Spent hops extract | Hop cones extract | Xanthohumol | |||
---|---|---|---|---|---|---|
MIC | MBC | MIC | MBC | MIC | MBC | |
S. aureus 29213 | 2 | >2 | 0.031 | 0.065 | 0.015 | >0.5 |
S. aureus D5 | 1 | 2 | 0.125 | 0.5 | 0.125 | 0.5 |
S. aureus A7 | 2 | 2 | 0.031 | 0.031 | 0.125/0.062 | 0.25 |
E. faecalis 29212 | >2 | >2 | 0.062 | 1 | 0.062 | >0.5 |