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Listeria contamination at a poultry processing plant
Author(s) -
Hudson W.R.,
Mead G.C.
Publication year - 1989
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1989.tb00328.x
Subject(s) - listeria monocytogenes , listeria , contamination , food science , biology , microbiology and biotechnology , veterinary medicine , bacteria , medicine , ecology , genetics
A survey was made of Listeria contamination at a chicken processing plant with a two‐stage ‘hot’ enrichment procedure in conjunction with three selective plating media. Results from three separate visits indicated that carcasses acquired listerias mainly via contaminated surfaces and equipment. Whereas no listerias were detected on neck skin from freshly slaughtered birds or in the caeca, Listeria monocytogenes was isolated from 50% of oven‐ready carcasses prior to packaging. In further tests, some caecal samples yielded L. monocytogenes , but only after prolonged cold enrichment.