title: Enzyme and bacteriophage concentration by membrane filtration.
mesh_terms: D001412:Bacillus subtilis; D001435:Bacteriophages / Q000302:isolation & purification*; D005374:Filtration; D005696:Galactosidases / Q000302:isolation & purification*; D008567:Membranes, Artificial; D008722:Methods; D010405:Penicillinase / Q000302:isolation & purification*; D011312:Pressure; D012492:Salts; D014357:Trypsin / Q000302:isolation & purification*
chemical_list: D008567:Membranes, Artificial; D012492:Salts; D005696:Galactosidases; D014357:Trypsin; D010405:Penicillinase