1. Dept. of Chemical and Biomolecular Engineering, ETSIIT, University of Cantabria, Avda. Los Castros s/n, 39005 Santander, Spain
2. Dept. of Microbiology, Valdecilla Biomedical Research Institute (IDIVAL), C/ Cardenal Herrera Oria s/n, 39011 Santander, Spain