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CONTAMINATION OF BEEF TISSUE SURFACES BY ARTIFICIALLY INOCULATED LOW‐MOISTURE MENSTRUA
Author(s) -
DICKSON JAMES S.
Publication year - 1991
Publication title -
journal of food safety
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 43
eISSN - 1745-4565
pISSN - 0149-6085
DOI - 10.1111/j.1745-4565.1991.tb00077.x
Subject(s) - contamination , bacteria , water content , moisture , inoculation , phosphate buffered saline , population , chemistry , salmonella , food science , buffer (optical fiber) , environmental chemistry , biology , chromatography , horticulture , ecology , geology , medicine , genetics , geotechnical engineering , environmental health , organic chemistry , telecommunications , computer science
Salmonella typhimurium was inoculated into prepared dirt (moisture content 8.8%), sand (moisture content 0.06%) and phosphate buffer, and these menstrua were used to contaminate beef tissue. Fewer bacteria adhered to the tissue surface from the low moisture menstrua when compared to contamination by buffer. Determination of S R values, an estimate of the total population associated with the surface which was physically attached, indicated that more bacteria remained in the soil menstrum than adhered to the surface, when compared to buffer and sand menstrua. Contrary to expectations, bacteria which contaminated the surface from the low moisture menstrua were not more sensitive to organic acids than those which originated from the buffer .