Study on the antibacterial potential in vitro of flavonoids in leaves of some species of clerodendron, verbenaceae in Vietnam

ABSTRACT

The antibacterial effects of flavonoid substances isolated from plants belonging to C.clerodendron species were studied. They are included Clerodendron fragrant, C.informatum, C.cytophyllum. The results showed that flavonoids from these plants presented antibacterial activities on both strain of Gram (+) and Gram(-) but stronger effect obtained with Gram(+). The antifungal activity was week or not resulted for all these three plants. The mixed flavonoid solutions may give better antibacterial effects depending on the combination of extracted flavonoid solutions.