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Growth of Listeria monocytogenes Inoculated in Waste Fluids from Clean‐up of a Meat Grinder
Author(s) -
BOYLE D.L.,
SCHMIDT G.R.,
SOFOS J.N.
Publication year - 1990
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1990.tb06077.x
Subject(s) - listeria monocytogenes , hand sanitizer , inoculation , food science , pulverizer , meat packing industry , chemistry , microbiology and biotechnology , biology , bacteria , metallurgy , materials science , grinding , horticulture , genetics
The potential of waste fluids from clean‐up of a meat grinder to support growth (8°C and 35°C) of artificially inoculated Listeria monocytogenes Scott A was examined. Estimated generation times were 10.1 and 2.3 hr at 8°C, and 8.9 and 2.2 hr at 35°C for a fluid collected during rinsing of the meat grinder and a fluid collected from the floor drain, respectively. A sanitizer fluid (25 ppm titratable iodine), collected after sanitation of the grinder, inactivated the inoculated cells. Thus, waste fluids may support growth of L. monocytogenes in meat processing facilities, but frequent sanitation should inactivate the pathogen.