TY - JOUR T1 - Novel Approaches of E. coli O157: H7 Decontamination AU - Raftari, M. AU - Jalilian, F. Azizi AU - Abdulamir, A.S. AU - Son, R. AU - Sekawy, Z. AU - Fatimah, A.B. JO - Research Journal of Medical Sciences VL - 3 IS - 4 SP - 158 EP - 162 PY - 2009 DA - 2001/08/19 SN - 1815-9346 DO - rjmsci.2009.158.162 UR - https://makhillpublications.co/view-article.php?doi=rjmsci.2009.158.162 KW - Beef KW -Escherichia coli O157: H7 KW -acetic acid KW -lactic acid KW -propionic acid and formic acid AB - Researchers in the area of microbiological meat safety, in an attempt to reduce beef carcass contamination, try carcass-washing treatments as an effective method to control pathogenic bacteria. Spray wash treatments utilizing 3 concentrations (1, 1.5 and 2%) of acetic, lactic, propionic and formic acids were performed to evaluate their efficacy in reducing numbers of Escherichia coli O157: H7 on meat tissues at 4±1°C. The meat was decontaminated with hot water and then inoculated with E. coli O157: H7, which then was spray washed with organic acids for 15 sec separately. The population of E. coli O157: H7 significantly (p<0.05) reduced after being spray washed with all treatments. The lethality effect of all organic acids according to the concentration was 2% concentration >1.5% concentration >1% concentration. Mean log reductions of E. coli O157: H7showed that the antibacterial effect of formic acid >lactic acid >acetic acid >propionic acid. The results of this study also indicated that formic acid is a good antibacterial agent for decontaminating animals carcass surfaces. ER -