1. Department of Agriculture and Forestry Engineering, Food Technology; College of Agricultural and Forestry Engineering; University of Valladolid; Av. Madrid, 44 34004 Palencia Spain
2. Cereal Group; Food Science Department; Instituto de Agroquímica y Tecnología de Alimentos; IATA-CSIC; Avda. Catedrático Agustín Escardino 7 46980 Paterna Spain