APPLICATION OF ACIDIC CALCIUM SULFATE AND epsilon-POLYLYSINE TO PRE-RIGOR BEEF ROUNDS FOR REDUCTION OF PATHOGENS

NJONGMETA N. L. A., BENLİ H., DUNKLEY K. D., DUNKLEYO C. S., MILLER D. R., ANDERSON R. C., ...More

JOURNAL OF FOOD SAFETY, vol.31, no.3, pp.395-400, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 3
  • Publication Date: 2011
  • Doi Number: 10.1111/j.1745-4565.2011.00312.x
  • Journal Name: JOURNAL OF FOOD SAFETY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.395-400
  • Çukurova University Affiliated: Yes

Abstract

This study evaluated the effectiveness of warm solutions of acidic calcium sulfate (ACS), lactic acid (LA), epsilon-polylysine (EPL), ACS plus EPL and sterile distilled water (W) applied to the surface of fresh, pre-rigor beef rounds for reducing Salmonella Typhimurium, Escherichia coli O157:H7 and Listeria monocytogenes applied as a cocktail at a level of 6.4 log cfu/ 50 cm(2). All treatments were applied for 15 to 20 s using a stainless steel spray cabinet at 50-55C under a constant pressure. Sequential application of warm ACS, followed by EPL significantly reduced inoculated levels of S. Typhimurium, E. coli O157: H7 and L. monocytogenes, with an extended effect over seven storage days. This combination was more effective than single treatments of ACS, LA, EPL or W alone. From these results, it appears that a sequential application of ACS and EPL could be a better strategy for pathogen reduction in meat plants than a single decontamination treatment.