1. Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini 11562, Egypt
2. Chemistry Department, Faculty of Science, Helwan University, Ain-Helwan, Egypt
3. Regional Center for Food and Feed (RCFF), Agriculture Researchers Center, Giza, Egypt
4. Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D06120 Halle (Saale), Germany