1 Formation and characterization of zein-caseinate-pectin complex 1 nanoparticles for encapsulation of eugenol 2 3 Marco Veneranda a,b , Qiaobin Hu a , Taoran Wang a , Yangchao Luo a,* , Kepa Castro b , Juan Manuel 4 Madariaga b 5 a Department of Nutritional Sciences, University of Connecticut, 06269-4017 Storrs (USA). 6 b Department of Analytical Chemistry, University of the Basque Country (UPV/EHU), P.O. Box 644, 7 48080 Bilbao (Spain) 8 9 *Corresponding Author 10 Mailing Address: 11 Department of Nutritional Sciences 12 3624 Horsebarn Road Ext., Unit-4017 13 University of Connecticut 14 Storrs, CT 06269-4017 15 Email: yangchao.luo@uconn.edu 16 Tel: 860-486-2180 17 Fax: 860-486-3674 18 19