“…It is more efficient than traditional methods because it is a one-stage model with low energy consumption and without generating contaminating by-products (Belhocine, Grib, Abdessmed, Comeau, & Mameri, 1998). The UF systems operate at low temperatures allowing the separation and concentration of heat-sensitive biological preparations, obtaining a higher quality product (Boye et al, 2010;Fernández, Menéndez, Mucciarelli, & Pérez Padilla, 2007;Noordman, Ketelaar, Donkers, & Wesselingh, 2002;Rinaldoni, Tarazaga, Campderrós, & Pérez Padilla, 2009).…”