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Antibacterial activity of two biflavonoids from Garcinia livingstonei leaves against Mycobacterium smegmatis
- Kaikabo, A.A., Eloff, J.N.
- Journal of ethnopharmacology 2011 v.138 no.1 pp. 253-255
- Garcinia, Mycobacterium smegmatis, antibacterial properties, bacteria, isoniazid, leaves, mycobacterial diseases
- Amentoflavone and 4′ monomethoxy amentoflavone were previously isolated from Garcinia livingstonei leaves. These compounds had good activities (MIC 6 and 8μg/ml) against some nosocomial bacteria. In this study, the activity of these purified compounds were tested against fast-growing non-pathogenic Mycobacterium smegmatis. Amentoflavone was the most active compound, with an MIC of 0.60±0.70mg/ml. The MIC of 4′ monomethoxy amentoflavone and the positive control isoniazid against Mycobacterium smegmatis were similar 1.40±1.56 and 1.30±1.70mg/ml respectively. Although, Mycobacterium smegmatis is a non-pathogenic fast growing mycobacterium the activities of these compounds may also be useful in combating infections by pathogenic Mycobacterium spp.