| in vitro antibacterial and antifungal activities of rhus tripartitum used as antidiarrhoeal in tunisian folk medicine. | rhus tripartitum (african sumac) is a plant commonly used in tunisian traditional medicine to treat diarrhoea and dysentery. in this study, we have demonstrated that r. tripartitum extracts exhibited a significant broad spectrum activity against one or more of the test microorganisms with a zone size ranging from 8 to 28 mm in diameter. these diameters are much higher than those obtained with standard antibiotics. the chloroformic extracts were found to be effective against bacterial and fungal ... | 2011 | 22132736 |
| botryosphaeriaceae species overlap on four unrelated, native south african hosts. | botryosphaeriaceae represents an important and diverse family of latent fungal pathogens of woody plants. we address the question of host range of these fungi by sampling leaves and branches of four native south african trees, including acacia karroo (fabaceae), celtis africana (cannabaceae), searsia lancea (anacardiaceae), and gymnosporia buxifolia (celastraceae). two new species of the botryosphaeriaceae, namely tiarosporella africana sp. nov. and aplosporella javeedii sp. nov. were identified ... | 2014 | 24528639 |
| analysis of commercial proanthocyanidins. part 4: solid state (13)c nmr as a tool for in situ analysis of proanthocyanidin tannins, in heartwood and bark of quebracho and acacia, and related species. | (13)c nmr is an effective method of characterizing proanthocyanidin (pac) tannins in quebracho (schinopsis lorentzii) heartwood and black wattle (acacia mearnsii) bark, before and after commercial extraction. the b-rings of the constituent flavan-3-ols, catechols (quebracho) or pyrogallols (wattle), are recognized in unprocessed source materials by "marker" signals at ca. 118 or 105ppm, respectively. nmr allows the minimum extraction efficiency to be calculated; ca. 30%, and ca. 80%, for quebrac ... | 2013 | 23838626 |