Fouling control in ultrafiltration of bovine serum albumin and milk by the use of permanent magnetic field》.pdfVIP

Journal of Food Engineering 168 (2016) 154–159 Contents lists available at ScienceDirect Journal of Food Engineering journal homepage: www.elsevi /locate/jfoodeng Fouling control in ultrafiltration of bovine serum albumin and milk by the use of permanent magnetic field Guilherme Zin, Frederico Marques Penha, Katia Rezzadori, Fabiana Luísa Silva, Karina Guizoni, José Carlos Cunha Petrus, José Vladimir Oliveira, Marco Di Luccio ⇑ Department of Chemical and Food Engineering, Federal University of Santa Catarina, Caixa Postal 476, 88040-900 Florianópolis, SC, Brazil a r t i c l e i n f o a b s t r a c t Article history: Membrane separation processes are widely employed for protein concentration in the food industry. The Received 14 May 2015 major drawback is permeability reduction caused by concentration polarization and fouling. The present Received in revised form 27 July 2015 work evaluated the influence of a permanent magnetic field applied to the ultrafiltration process (UF) of Accepted 27 July 2015 protein solutions, as an alternative to improve the permeation performance and the permeability recov- Available online 29 July 2015 ery. Permeation tests of bovine serum albumin (BSA) and milk as the feed protein solutions through a 50 kDa hydrophilic polyethersulfone (PES) membrane were carried out in a tangential flow module. Keywords: The feed pH was varied (4.0, 6.5 and 8.0) and