TY JOUR TI IMMOBILIZATION OF CHYMOTRYPSIN ON MAGNETIC Fe3O4 NANOPARTICLES KW catalytic activity KW magnetic nanoparticles KW chymotrypsin KW glutaraldehyde method KW immobilization JO Foods and Raw Materials AU Novoselova, M.V. AU Dyshlyuk , L.. AU Rozalenok , T.. PY 2013 IS 1 PB Kemerovo State University