UORGANISK FILTRERINGSMEMBRAN MODIFICERET TIL SEPARATION AF PROTEINER

摘要

The invention concerns inorganic ultrafiltration or microfiltration membranes modified by the fact that at least one hydrophilic polymer or copolymer, like polyvinylpyrrolidone or polyvinylimidazole is adsorbed on one surface of the membrane. The inorganic membrane can include a macroporous support that is coated with a microporous layer of metal oxide, like zirconium oxide or aluminium oxide. This membrane 3 can be used in an ultrafiltration apparatus 1 for separation of proteins, like lactose serum proteins, bovine serum albumin or lysozyme. <IMAGE>