Document Detail


Aerosolization as novel sanitizer delivery system to reduce food-borne pathogens.
MedLine Citation:
PMID:  15960753     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
AIMS: As a preliminary experiment on new sanitizer delivery tools, the efficacy of aerosolized sanitizer on food-borne pathogens was investigated in larger model chamber system. METHODS: Peroxyacetic acid and hydrogen peroxide were aerosolized in a model system against artificially inoculated target micro-organisms on laboratory media. Cultures of four different food-borne pathogens were inoculated and affixed onto three different heights (bottom, wall and ceiling), and three different orientations (face-down, vertical and face-down) inside a commercial semi-trailer cabinet (14.6 x 2.6 x 2.8 m). Sanitizer was aerosolized into 2 microm droplet size fog and treated for 1 h at ambient temperature. RESULTS: Populations of Bacillus cereus, Listeria innocua, Staphylococcus aureus, and Salmonella typhimurium were reduced by an average of 3.09, 7.69, 6.93 and 8.18 log units per plate respectively. Interestingly, L. innocua, Staph. aureus, and Salm. typhimurium showed statistically not different (P >/= 0.05) reduction patterns relative to height and orientation that were never expected in a spraying system. CONCLUSIONS: Aerosolized sanitizers diffuse like gaseous sanitizers. SIGNIFICANCE AND IMPACT OF THE STUDY: Aerosolization has great potential for use in commercial applications.
Authors:
S-W Oh; P M Gray; R H Dougherty; D-H Kang
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Letters in applied microbiology     Volume:  41     ISSN:  0266-8254     ISO Abbreviation:  Lett. Appl. Microbiol.     Publication Date:  2005  
Date Detail:
Created Date:  2005-06-17     Completed Date:  2006-01-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8510094     Medline TA:  Lett Appl Microbiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  56-60     Citation Subset:  IM    
Affiliation:
Food Safety Research Division, Korea Food Research Institute, Korea.
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MeSH Terms
Descriptor/Qualifier:
Aerosols*
Bacillus cereus / drug effects
Disinfectants / pharmacology*
Food Microbiology / standards
Gram-Positive Bacteria / drug effects*
Hydrogen Peroxide / pharmacology*
Listeria / drug effects
Peracetic Acid / pharmacology*
Salmonella typhi / drug effects
Staphylococcus aureus / drug effects
Chemical
Reg. No./Substance:
0/Aerosols; 0/Disinfectants; 7722-84-1/Hydrogen Peroxide; 79-21-0/Peracetic Acid

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


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