Affiliation: | aDepartment of Pharmacy, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia;bDepartment of Botany, Faculty of Science, University of Khartoum, Khartoum, Sudan;cDepartment of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Malaysia;dMedicinal and Aromatic Plant Research Institute, Khartoum, Sudan;eCentre of Natural Products and Drug Discovery (CENAR), Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia;fFaculty of Biotechnology, Universiti Putra Malaysia, Serdang, Malaysia |