1. Chemistry Department, Faculty of Science; King Saud University; Riyadh KSA
2. Botany and Microbiology Department, Faculty of Science; King Saud University; Riyadh KSA
3. Pharmacognosy Department, College of Pharmacy; King Saud University; KSA
4. Department of Pharmaceutical Chemistry, College of Pharmacy; Salman Bin Abdulaziz University; KSA
5. Pharmacognosy Department, College of Pharmacy; Salman Bin Abdulaziz University; Al-Kharj KSA
6. Medicinal and Aromatic Plants Department; Desert Research Centre; Cairo Egypt