1. Discipline of Genetics, School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
2. Department of Chemical Engineering, Mangosuthu University of Technology, Umlazi, Durban, South Africa
3. Department of Chemistry, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
4. Department of Industrial Chemistry, Federal University Oye Ekiti, Ekiti State, Nigeria