1. Department STEBICEF, University of Palermo, Viale delle Scienze, Parco d'Orleans II, 90128 Palermo, Italy
2. Laboratoire des Plantes Extremophiles, Biotechnologic Center Borj-CedriaTechnopark, B.P. 901, 2050 Hammam-Lif, Tunisia
3. Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano, 49, 80131 Naples, Italy