1. Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy
2. School of Pharmacy, University of Camerino, Via Sant'Agostino 1, 62032 Camerino, Italy
3. Laboratory of Medicinal Plant Biochemistry, Food Science and Nutrition, Department of Biochemistry, Faculty of Sciences, University of Dschang, PO Box 67 Dschang, Cameroon