Document Detail

Residence time and food contact time effects on transfer of Salmonella Typhimurium from tile, wood and carpet: testing the five-second rule.
MedLine Citation:
PMID:  17381737     Owner:  NLM     Status:  MEDLINE    
AIMS: Three experiments were conducted to determine the survival and transfer of Salmonella Typhimurium from wood, tile or carpet to bologna (sausage) and bread. METHODS AND RESULTS: Experiment 1. After 28 days, 1.5 to 2.5 log(10) CFU cm(-2) remained on tile from and the more concentrated media facilitated the survival of S. Typhimurium compared with the more dilute solutions. Experiments 2 and 3. The bacterial transfer rate to food decreased as the bacterial residence time on the surface increased from 2, 4, 8 to 24 h with transfers of 6.5, 4.8, 4.6 and 3.9 log CFU ml(-1) in the rinse solutions, respectively. Over 99% of bacterial cells were transferred from the tile to the bologna after 5 s of bologna exposure to tile. Transfer from carpet to bologna was very low (<0.5%) when compared with the transfer from wood and tile (5-68%). CONCLUSIONS: (i) Salmonella Typhimurium can survive for up to 4 weeks on dry surfaces in high-enough populations to be transferred to foods and (ii) S. Typhimurium can be transferred to the foods tested almost immediately on contact. SIGNIFICANCE AND IMPACT OF THE STUDY: This study demonstrated the ability of bacteria to survive and cross-contaminate other foods even after long periods of time on dry surfaces, thus reinforcing the importance of sanitation on food contact to minimize the risk of foodborne illness.
P Dawson; I Han; M Cox; C Black; L Simmons
Related Documents :
15782917 - Recovery of salmonellae following ph adjusted pre-enrichment of broiler carcasses treat...
9745837 - Prevalence of food-borne pathogens and growth potential of salmonella in weaning foods ...
18811907 - The occurrence and antimicrobial susceptibility of salmonellae isolated from commercial...
12412927 - Thermal inactivation d- and z-values of salmonella and listeria innocua in fully cooked...
20031987 - How rugged individualists enable one another to find food and shelter: field experiment...
1557447 - Coping with food-limited conditions: feeding behavior, temperature preference, and noct...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of applied microbiology     Volume:  102     ISSN:  1364-5072     ISO Abbreviation:  J. Appl. Microbiol.     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-03-26     Completed Date:  2007-09-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706280     Medline TA:  J Appl Microbiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  945-53     Citation Subset:  IM    
Department of Food Science and Human Nutrition, Clemson University, Clemson, SC 29634-0316, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Bacterial Adhesion*
Floors and Floorcoverings*
Food Contamination / analysis*
Food Handling
Food Microbiology*
Meat Products / microbiology*
Salmonella / growth & development*,  isolation & purification
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Biosynthesis of antibiotic prodiginines in the marine bacterium Hahella chejuensis KCTC 2396.
Next Document:  Killing of spores of Bacillus subtilis by tert-butyl hydroperoxide plus a TAML activator.