Table 1.
Antibacterial activity of compounds 1–5 isolated from Flourensia oolepis extract.
| Compound | MIC (MBC) (μg/mL) | ||||
|---|---|---|---|---|---|
| E. coli | P. aeruginosa | P. mirabilis | E. faecalis | S. aureus | |
| 2′,4′-Dihydroxychalcone (1) | 250 (500) |
250 (>500) |
62 (125) |
62 (125) |
31 (31) |
|
| |||||
| Isoliquiritigenin (2) | >500 (>500) |
>500 (>500) |
>500 (>500) |
500 (>500) |
250 (500) |
|
| |||||
| Pinocembrin (3) | 500 (500) |
>500 (>500) |
>500 (>500) |
62 (125) |
15 (62) |
|
| |||||
| 7-Hydroxyflavanone (4) | 500 (500) |
500 (>500) |
>500 (>500) |
250 (500) |
250 (250) |
|
| |||||
| 7,4′-Dihydroxy-3′-methoxyflavanone (5) | >500 (>500) |
>500 (>500) |
>500 (>500) |
500 (>500) |
250 (>500) |
|
| |||||
| Gentamicin | 4 (8) |
4 (4) |
10 (10) |
8 (10) |
8 (10) |
|
| |||||
| Erythromycin | 125 (>500) |
62 (500) |
500 (>500) |
1 (30) |
1 (60) |