title: Effect of the growth of anaerobic bacteria on the surface pH of solid media.
abstract: Changes in surface pH occurring after varying periods of anaerobic incubation were measured for a total of 23 test solid media. There was little change in the surface pH of uninoculated plates, but plates inoculated with Bacteriodes fragilis showed a striking fall in pH, to pH 5 in the case of some of the test media. The problems of controlling the surface pH of solid media are discussed and possible methods of control are considered.
authors.forename: B
authors.initials: B
authors.lastname: Watt
authors.forename: F V
authors.initials: FV
authors.lastname: Brown
mesh_terms: D001421:Bacteria, Anaerobic / Q000254:growth & development*; D001441:Bacteroides fragilis / Q000254:growth & development; D003016:Clostridium perfringens / Q000254:growth & development; D003470:Culture Media; D006863:Hydrogen-Ion Concentration; D001443:Prevotella melaninogenica / Q000254:growth & development
chemical_list: D003470:Culture Media