Effect of the growth of anaerobic bacteria on the surface pH of solid media.
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.
Watt
B
B
Brown
F V
FV
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
D003470:Culture Media