Table 2.
Minimum bactericidal/fungicidal concentration of flavonoids 5a–g against tested microbial strains (µg/mL).
| Microbial Strains | 5a | 5b | 5c | 5d | 5e | 5f | 5g | Control |
|---|---|---|---|---|---|---|---|---|
| Staphylococcus aureus ATCC 25923 | 3.90 | 7.81 | 3.90 | 1.97 | 3.90 | 3.90 | 3.90 | 7.8 a |
| Bacillus subtilis ATCC 6633 | 0.9 | 0.9 | 1.9 | 0.9 | 0.48 | 3.9 | 1.95 | 3.9 a |
| Enterococcus faecium medbio2-2012 | 62.5 | 15.62 | 31.25 | 62.5 | 15.62 | 62.5 | 31.25 | >250 chl |
| Escherichia coli ATCC 25922 | 31.25 | 31.25 | 62.50 | 31.25 | 125 | 62.50 | 31.25 | 125 a |
| Pseudomonas aeruginosa PAO1 | 250 | 250 | 250 | 125 | 125 | 125 | 125 | >250 a |
| Acinetobacter pittii Cl2 | 31.25 | 15.62 | 31.25 | 125 | 125 | 62.50 | 31.25 | >250 a |
| Candida albicans ATCC 10231 | 15.62 | 15.62 | 7.81 | 7.81 | 15.62 | 15.62 | 15.62 | >500 f |
| Candida krusei Prx | 15.62 | 15.62 | 7.81 | 7.81 | 31.25 | 7.81 | 15.62 | 62.5 f |
a—ampicillin; chl—chloramphenicol; f—fluconazole. The values are means for at least three replicates.