A study of the relative incidence of different Pseudomonas groups on meat using a computer‐assisted identification technique employing only carbon source tests
- 1 August 1984
- journal article
- Published by Wiley in Journal of Applied Bacteriology
- Vol. 57 (1), 59-67
- https://doi.org/10.1111/j.1365-2672.1984.tb02356.x
Abstract
A computer-assisted probabilistic identification technique employing 18 carbon source utilization tests has been developed and applied to 787 Pseudomonas strains isolated from beef, pork and lamb stored under aerobic conditions. Seven hundred and twelve (89.7%) were identified using these tests alone and a further six (0.8%) with extra tests. Taxa detected were Ps. fragi cluster 2, 390 strains (49.6% of all isolates); Ps. fragi cluster 1, 191 strains (24.9%); meat cluster 3, 87 strains (11.1%); Ps. fluorescens biotype I, 31 strains (3.9%); Ps. fluorescens biotype III, 7 strains (0.9%); and Ps. putida, 1 strain (0.1%). The relative incidence of members of the various taxa was similar on beef, pork and lamb, and was unaffected by storage temperature in the range 0 degrees-10 degrees C. Each taxon was also detected at similar rates before and after spoilage. Meat origin (abattoir) affected the frequency of detection of meat cluster 3 and Ps. fluorescens biotype I strains but did not affect the incidence of detection of either cluster of Ps. fragi.Keywords
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