Decontamination of carcasses by vacuum-hot water cleaning and steam pasteurizing during routine operations at a beef packing plant

摘要: The microbiological effects of three operations for cleaning areas on dressed beef carcasses with vacuuming equipment which also applies hot water to the carcass, and an operation pasteurizing carcass sides steam, were assessed. All four routine in a commercial dressing process. For each operation, swab samples obtained from randomly selected carcasses, single sample being collected site at random those affected by operation. operations, 25 before after 50 In addition, cooling process followed Total aerobic counts, coliforms Escherichia coli enumerated. generally reduced log mean numbers bacteria treated ≤ 0.5 had no discernible effect overall condition emerging total about 1, E. > 2. affect but further coli, apparently give not recovered.