Lactic acid and trisodium phosphate treatment of lamb breast to reduce bacterial contamination.
Lactic acid and trisodium phosphate (TSP) were evaluated for the ability to reduce Escherichia coli and aerobic plate counts (APCs) on lamb breasts that were inoculated with a lamb fecal paste. A 90-s water rinse was applied followed by either a 9-s (55 degrees C) 2% lactic acid spray, a 60-s (55 degrees C) 12% TSP dip, or a combined treatment of both lactic acid and TSP treatments. Lactic acid reduced E. coli and APCs by 1.6 log10/cm2, and TSP caused a 1.8-log10/cm2 reduction in E. coli and a 0.7-log10/cm2 reduction in APCs. Combined reductions by the lactic acid spray followed by the TSP dip were 1.8 and 1.5 log10/cm2 for E. coli and APCs, respectively. Lactic acid and trisodium phosphate, used alone or in combination, were effective in reducing numbers of E. coli and could be useful as pathogen intervention steps in lamb slaughter processing.
Ramirez
A J
AJ
Department of Animal Science, Texas A&M University, College Station 77843-2471, USA.
Acuff
G R
GR
Lucia
L M
LM
Savell
J W
JW
D000818:Animals; D001420:Bacteria, Aerobic / Q000187:drug effects* / Q000254:growth & development; D002400:Cathartics; D015169:Colony Count, Microbial; D004926:Escherichia coli / Q000187:drug effects* / Q000254:growth & development; D005506:Food Contamination / Q000517:prevention & control*; D006863:Hydrogen-Ion Concentration; D019344:Lactic Acid / Q000494:pharmacology*; D010710:Phosphates / Q000494:pharmacology*; D012756:Sheep / Q000382:microbiology*; D016896:Treatment Outcome
D002400:Cathartics; D010710:Phosphates; D019344:Lactic Acid; C018279:sodium phosphate