Contamination of beef tissue surfaces by artificially inoculated low-moisture menstrua
1992
Dickson, J.S.
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 menstruum 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.
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