1. Department of Chemistry, Science College, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
2. Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
3. Pharmacognosy Department, Faculty of Pharmacy, Mansoura University, El Mansoura, Egypt
4. Department of Pharmacognosy, Faculty of Pharmacy, Sohag University, Nasser City, Egypt
5. Pharmacognosy Department, Faculty of Pharmacy, Assiut University, Assiut, Egypt