| Management of risk of microbial cross-contamination from uncooked frozen hamburgers by alcohol-based hand sanitizer. | |
| | |
MedLine Citation:
|
PMID: 17265868 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
This research was undertaken to determine the effectiveness of an alcohol-based hand sanitizer on hands contaminated with a nonpathogen surrogate for Escherichia coli O157:H7, where the source of the contamination was frozen hamburger patties. A nonpathogenic nalidixic acid-resistant food-grade strain of Enterobacter aerogenes was used to inoculate frozen hamburger patties composed of 76% lean beef and 24% fat. Thirty-two individuals participated to produce the data used in this study. Each participant handled nine patties at least three times, a sample for microbiological analysis was collected from the surface of one hand, the participant sanitized both hands, and a sample was collected from the other hand. Burger handling created perceptible and visible food debris on the hands of most participants. Computer simulations also were used to perform a variety of risk calculations. The average reduction in bacteria from the use of sanitizer on hands contaminated by frozen burgers containing E. aerogenes was 2.6 +/- 0.7 log CFU per hand. An experiment designed to simultaneously test the effect of sanitizer on E. aerogenes and E. coli O157:H7 also revealed no significant difference in sanitizer effectiveness against the two organisms. The results of the real-world risk estimation calculations (using the actual prevalence and concentration of E. coli O157:H7 in ground beef) predict that once in 1 million trials, a single pathogen cell will be transferred to a single lettuce piece. The effectiveness of this sanitizer intervention was similar to that for hand washing and glove use previously reported. The person-to-person microbial reduction variability from sanitizer use is similar to published data for glove use and was less variable than published data on hand washing effectiveness. |
| | |
Authors:
|
Donald W Schaffner; Kristin M Schaffner |
Related Documents
:
|
12163918 - Street foods in accra, ghana: how safe are they? 10066458 - Enterohemorrhagic escherichia coli. 9105918 - Optimisation of methodology for enumeration of xerophilic yeasts from foods. 15453588 - Antibacterial effect of water-soluble arrowroot (puerariae radix) tea extracts on foodb... 7871058 - Ritanserin attenuates anorectic, endocrine and thermic responses to d-fenfluramine in h... 1710628 - Lipid composition of teat canal keratin collected before and after milking from holstei... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Journal of food protection Volume: 70 ISSN: 0362-028X ISO Abbreviation: J. Food Prot. Publication Date: 2007 Jan |
Date Detail:
|
Created Date: 2007-02-01 Completed Date: 2007-02-27 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 7703944 Medline TA: J Food Prot Country: United States |
Other Details:
|
Languages: eng Pagination: 109-13 Citation Subset: IM |
Affiliation:
|
Food Risk Analysis Initiative, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901-8520, USA. schaffner@aesop.rutgers.edu |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Alcohols
/
pharmacology* Animals Cattle Colony Count, Microbial Consumer Product Safety Disinfectants / pharmacology* Enterobacter aerogenes / drug effects*, growth & development Equipment Contamination / prevention & control* Escherichia coli O157 / drug effects, growth & development Gloves, Protective Handwashing Humans Meat Products / microbiology* Risk Management* |
| Chemical | |
Reg. No./Substance:
|
0/Alcohols; 0/Disinfectants |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Efficacy of neutral electrolyzed water to inactivate Escherichia coli, Listeria monocytogenes, Pseud...
Next Document: Use of lemon extract to inhibit the growth of malolactic bacteria.