Table 4. Antibacterial activity of major constituents of bark, lignum and leaves of R. verniciflua against E. tarda, V. anguillarum and S. iniae.
Compound | Antibacterial activity (MIC, μg/ml) | ||
---|---|---|---|
E. tarda | V. anguillarum | S. iniae | |
Methyl gallate (8) | 31.25 | 2000 | > 2000 |
Fustin (14) | 1000 | 1000 | 1000 |
Quercitrin (15) | > 2000 | 2000 | 2000 |
Positive control (OTC) a) | 0.5 | 0.25 | 0.25 |
a) Oxytetracycline was used as the positive control