Antifungal effect of brachyglottis repanda ethanol extract

Abstract

The crude ethanol extract of B. repanda showed the cytotoxic activity against Polio virus (25% activity at 150 μg/disk) and the minor cytotoxic activity against BSC cells (African green monkey kidney). However, the crude ethanol extract of B. repanda was non-toxic to murine leukaemia cells CCL 46 P388D1 (IC50, > 62,500 ng/ml). Cytotoxic and antifungal activities were strongly shown by Fr. 64-3 which was eluted with 90% CH3CN/H2O, 100% CH33CN, and 50% CH3CN/H2O (SM 2 at 150 μg/disk). The fraction 64-3 also showed the most cytotoxic activity against murine leukaemia cells (128 mg, IC50 10,051 ng/ml at 75 μg/disk). These results suggest that this fraction has a potent antifungal activity against the dermatophytic fungus Trichophyton mentagrophytes ATCC 28185.