1. Department of Pharmaceutical Chemistry, Centre of Excellence for Pharmaceutical Sciences (Pharmacen) North‐West University Potchefstroom South Africa
2. Centre for Chemico‐ and Biomedical Research Rhodes University Makhanda South Africa
3. Faculty of Science, Department of Biochemistry and Microbiology Rhodes University Makhanda South Africa
4. Foodborne Toxin Detection and Prevention Research Unit, Agricultural Research Service United States Department of Agriculture Albany California USA
5. Department of Biological Sciences University of the Pacific Stockton California USA
6. Division of Pharmaceutical Chemistry, Faculty of Pharmacy Rhodes University Makhanda South Africa