title: Purification of rennin.
mesh_terms: D000818:Animals; D002417:Cattle; D002623:Chemistry Techniques, Analytical; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D012085:Chymosin / Q000302:isolation & purification*; D007525:Isoelectric Focusing; D008722:Methods; D012965:Sodium Chloride
chemical_list: D012965:Sodium Chloride; D012085:Chymosin