@article{MAKHILLRJMS20093411686, title = {Novel Approaches of E. coli O157: H7 Decontamination}, journal = {Research Journal of Medical Sciences}, volume = {3}, number = {4}, pages = {158-162}, year = {2009}, issn = {1815-9346}, doi = {rjmsci.2009.158.162}, url = {https://makhillpublications.co/view-article.php?issn=1815-9346&doi=rjmsci.2009.158.162}, author = {M.,F. Azizi,A.S.,R.,Z. and}, keywords = {Beef,Escherichia coli O157: H7,acetic acid,lactic acid,propionic acid and formic acid}, abstract = {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.} }