- Essential Oils and Antimicrobial Activity
- Ethnobotanical and Medicinal Plants Studies
- Allelopathy and phytotoxic interactions
- Phytochemistry and Biological Activities
- African Botany and Ecology Studies
- Sesquiterpenes and Asteraceae Studies
- Medicinal Plants and Neuroprotection
- Phytochemicals and Medicinal Plants
- Plant Diversity and Evolution
- Phytochemistry and Bioactivity Studies
- Biological Control of Invasive Species
- Plant Toxicity and Pharmacological Properties
University of KwaZulu-Natal
2015-2020
Onderstepoort Veterinary Academic Hospital
2017-2019
University of Pretoria
2017-2019
Tithonia diversifolia and T. rotundifolia belong to the Asteraceae family are native Mexico Central America. These plants have become invasive in parts of tropical Africa Asia where they an ecological, agricultural economic burden. is exploited by locals its most range as a source medicines; however, only used for medicinal purposes one country (Venezuela) none range. Although has been studied different biological activities, little or no attention given rotundifolia. This study compared...
Two biotypes of the invasive species, Chromolaena odorata are known to be present in Africa, viz. Asian/West African biotype (AWAB) and southern (SAB). Although phytochemistry, ethnomedicinal ethnopharmacological relevance AWAB has been elucidated, SAB plants have received little or no attention. This study investigated compared phytochemistry pharmacological activities two C. (AWAB SAB). Antimicrobial leaf extracts three different growth stages were evaluated against several bacterial...
Plants are known to play a major role in the treatment of microbial infections, as they contain important bioactive components that may act synergism with conventional antibiotics, which presently under threat resistance. Synergistic activity between dichloromethane, acetone, 70% ethanol, 50% methanol and hot water extracts three southern African alien invasive plant species, namely Chromolaena odorata, Gomphrena celosioides Tithonia rotundifolia gentamicin, streptomycin, rifampicin...
Alien invasive plants pose a huge threat to natural and semi-natural ecosystems in their introduced ranges thereby compromising ecosystem integrity. However, anecdotal empirical evidence suggests that some alien are used traditional medicine due pharmacological activities. Here, we evaluated the antimicrobial activity of 70% ethanol, dichloromethane, acetone hot water extracts four South Africa viz. Dolichandra unguis-cati, Cardiospermum grandiflorum, Chromolaena odorata Gomphrena...
Bauhinia galpinii is one of several plant species native to South Africa that has been reported be used traditionally manage ailments including gastrointestinal disorders, infectious diseases and inflammation. This study was designed evaluate the in vitro antibacterial, antifungal, antioxidant, cytotoxicity anti-inflammatory activities hydro-ethanol (70% ethanol) hot water extracts leaves. The antibacterial antifungal were determined using serial microplate dilution technique. minimum...
Infections of the central nervous system (CNS) animals and humans by opportunistic pathogens such as bacteria fungi remain a global health issue, resulting in high morbidity mortality rates. This challenge is further complicated rise resistant microbial strains well emergence new infectious pathogens, especially developing countries. Plants (indigenous alien) play crucial role for treatment infections they may possess natural products with medicinal properties. study investigated...
Plants have potential to play a role in the treatment of urinary tract infections, as they contain important bioactive components. These components may act synergism with conventional antibiotics which are presently under threat microbial resistance. They also key reduction oxidative stress. Synergistic activity dichloromethane, acetone, 70% ethanol, 50% methanol and hot water extracts southern African alien weeds Chromolaena odorata Tithonia rotundifolia combined gentamicin amphotericin B...