title: Large-scale production and purification of a penicillinase from Escherichia coli.
mesh_terms: D000388:Air; D001431:Bacteriological Techniques; D002021:Buffers; D002482:Cellulose; D004926:Escherichia coli / Q000201:enzymology*; D006863:Hydrogen-Ion Concentration; D010405:Penicillinase / Q000302:isolation & purification*; D000644:Quaternary Ammonium Compounds; D013678:Technology, Pharmaceutical
chemical_list: D002021:Buffers; D000644:Quaternary Ammonium Compounds; D002482:Cellulose; D010405:Penicillinase