Skip to main content

Chemical Dehairing of Bovine Skin To Reduce Pathogenic Bacteria and Bacteria of Fecal Origin

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.


A chemical dehairing process was applied to artificially contaminated bovine hide to evaluate the effect on populations of Escherichia coli O157:H7 and Salmonella Typhimurium, as well as other strains of E. coli, total coliforms, and aerobic plate counts (APe). Pieces of hide (4 cm2 were contaminated with bovine feces inoculated with both rifampicin-resistant E. coli O157:H7 and S. Typhimurium to yield a final count of each pathogen of ca. 5.0 log10 CFU/cm2, or with noninoculated feces which produced an approximate final APC of 6.0 log10 CFU/cm2 and a coliform and E. coli count of 5.0 log10 CFU/cm2. Counts of pathogens, APC, coliforms, and E. coli were conducted before and after applying the dehairing treatment. S. Typhimurium and E. coli O157:H7 populations were significantly reduced from initial numbers (5.1 to 5.3 log10 CFU/cm2 to levels below the detection limit of 0.5 log10 CFU/cm2 after chemical dehairing. APC, coliforms, and E. coli counts were also reduced significantly after dehairing, with reductions of 3.4 for APC, 3.9 for coliforms, and >4.3 log10 CFU/cm2 for other E. coli strains. Since the hide is a major source of fecal contamination of beef carcass surfaces, chemical dehairing may be beneficial in reducing overall contamination of carcasses.

Document Type: Research Article

Affiliations: 1: Institute of Food Science and Engineering, Center for Food Safety, Department of Animal Science, Texas A&M University, College Station, Texas 77843-2471, USA 2: Department of Microbiology, Immunology, and Preventive Medicine, Iowa State University, Ames, Iowa 50011, USA 3: Monfort Inc., Greeley, Colorado 80631, USA

Publication date: 1998-05-01

More about this publication?
  • Access Key
  • Free ContentFree content
  • Partial Free ContentPartial Free content
  • New ContentNew content
  • Open Access ContentOpen access content
  • Partial Open Access ContentPartial Open access content
  • Subscribed ContentSubscribed content
  • Partial Subscribed ContentPartial Subscribed content
  • Free Trial ContentFree trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more