Mthatha Research and Innovation Day: programme
- Authors: Walter Sisulu University
- Date: 2021-08-15
- Subjects: Mthatha Research and Innovation Day
- Language: English
- Type: lecture , text
- Identifier: http://hdl.handle.net/11260/6267 , vital:45361
- Description: Mthatha Research and Innovation Day. Topic The Impact of the pandemic in Higher Education and Research: Challenges and possibilities.
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Compositional varition of the Essential Oils of Artemisia afra Jacq. from three Provinces in South Africa- A Case Study of its safety
- Authors: Oyedeji, O A , Afolayan, A J , Hutchings, A
- Date: 2009
- Language: English
- Type: text , Article
- Identifier: http://hdl.handle.net/11260/748 , vital:29679
- Description: In South Africa, Centella asiatica. (L.) Urb is used traditionally for the treatment of various diseases. Analyses of the essential oil of this medicinal plant revealed 11 monoterpenoid hydrocarbons (20.20%), nine oxygenated monoterpenoids (5.46%), 14 sesquiterpenoid hydrocarbons (68.80%), five oxygenated sesquiterpenoids (3.90%), and one sulfide sesquiterpenoid (0.76%). α.-Humulene (21.06%), β.-caryophyllene (19.08%), bicyclogermacrene (11.22%), germacrene B (6.29%), and myrcene (6.55%) were the predominant constitutes. The essential oil extract exhibited a broad spectrum of antibacterial activities against Gram-positive (Bacillus subtilis, Staphylococcus aureus.) and Gram-negative (Escherichia coli, Pseudomonas aeruginosa, Shigella sonnei.) organisms.
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