Enumeration of Escherichia coli in cooked and raw meats by ion mobility spectrometry.
A novel method for enumerating Escherichia coli in foods is described. It is based on the production of o-nitrophenol (ONP) from o-nitrophenyl-beta-D-glucuronide as detected by an ion mobility spectrometer. The time taken for the detection of ONP in a food sample was inversely proportional to the logarithm of the initial E. coli population. Escherichia coli could be detected at a level of 10 g-1 within 9 h.
Ogden
I D
ID
Ministry of Agriculture Fisheries and Food, Torry Research Station, Aberdeen, UK.
Strachan
N J
NJ
D000818:Animals; D015169:Colony Count, Microbial / Q000379:methods; D003296:Cooking; D004926:Escherichia coli / Q000302:isolation & purification* / Q000378:metabolism; D005069:Evaluation Studies as Topic; D005504:Food Analysis / Q000379:methods; D005516:Food Microbiology; D007477:Ions; D008460:Meat / Q000382:microbiology*; D009596:Nitrophenols / Q000032:analysis / Q000378:metabolism; D013057:Spectrum Analysis / Q000379:methods*
D007477:Ions; D009596:Nitrophenols; C045573:2-nitrophenol