1. Discipline of Microbiology, University of KwaZulu-Natal (Westville Campus), Durban, South Africa
2. Biorefinery Industry Development Facility, Chemicals Cluster, Council for Scientific and Industrial Research, Durban, South Africa
3. Discipline of Chemical Engineering, University of KwaZulu-Natal, Durban, South Africa
4. Department of Biotechnology and Food Technology, Durban University of Technology, Durban, South Africa