External debris on cattle surface such as mud/manure balls attached to the hair of hides hinder proper decontamination process of carcass. Pathogens staged beneath these debris can avoid harsh environment of decontamination treatment. These pathogens present on cattle surface prior to removal of hides can lead cross-contamination to the underlying meat. It is also important to remove adobe type mud/manure balls from hide surface to avoid damages during hide processing. ARS scientists at Wyndmoor, PA developed a novel chemical formulation and application protocol to remove external debris from the cattle surface in a very short time of 5-8 minutes. Spraying and soaking methods have been developed to be adopted for carcass decontamination and hide cleaning respectively. The inventive formulation not only offers cleaning of debris but also shows efficacy on reduction of microbial population including pathogens. With the spray treatment of the developed formulation, no aerobic bacteria is recovered at the lowest detection limit of 1 log CFU at 8 minutes, where at 5 minute approximately 5.87 log CFU reduction of aerobic bacteria is achieved in compare to water wash. In case of Salmonella enterica, the highest amount of 3 log CFU reduction is attained both at 5 and 8 minutes. Similarly for Escherichia coli, 1.4 and 3.6 log CFU reduction are achieved at 5 and 8 minutes, respectively. Almost all the surface debris can be removed by soaking the hides in the developed formulation for 5 minutes followed by soft brushing or spray washing. Posttreatment analysis reveals no damaging impact of the developed formulation on finished leather produced from the treated hides.

Novel chemical formulation to clean external debris form cattle carcass ensuring meat safety and animal byproduct quality

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.