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Enumeration of Escherichia coli in cooked and raw meats by ion mobility spectrometry
Author(s) -
Ogden I.D.,
Strachan N.J.C.
Publication year - 1993
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1993.tb05145.x
Subject(s) - enumeration , escherichia coli , food science , ion mobility spectrometry , chemistry , mass spectrometry , ion , chromatography , mathematics , biochemistry , organic chemistry , combinatorics , gene
I.D. OGDEN AND N.J.C. STRACHAN. 1993. A novel method for enumerating Escherichia coli in foods is described. It is based on the production of o ‐nitrophenol (ONP) from o ‐nitrophenyl‐β‐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.