Document Detail

Efficacies of sodium hypochlorite and quaternary ammonium sanitizers for reduction of norovirus and selected bacteria during ware-washing operations.
MedLine Citation:
PMID:  23227163     Owner:  NLM     Status:  MEDLINE    
Cross-contamination of ready-to-eat (RTE) foods with pathogens on contaminated tableware and food preparation utensils is an important factor associated with foodborne illnesses. To prevent this, restaurants and food service establishments are required to achieve a minimum microbial reduction of 5 logs from these surfaces. This study evaluated the sanitization efficacies of ware-washing protocols (manual and mechanical) used in restaurants to clean tableware items. Ceramic plates, drinking glasses and stainless steel forks were used as the food contact surfaces. These were contaminated with cream cheese and reduced-fat milk inoculated with murine norovirus (MNV-1), Escherichia coli K-12 and Listeria innocua. The sanitizing solutions tested were sodium hypochlorite (chlorine), quaternary ammonium (QAC) and tap water (control). During the study, the survivability and response to the experimental conditions of the bacterial species was compared with that of MNV-1. The results showed that current ware-washing protocols used to remove bacteria from tableware items were not sufficient to achieve a 5 log reduction in MNV-1 titer. After washing, a maximum of 3 log reduction in the virus were obtained. It was concluded that MNV-1 appeared to be more resistant to both the washing process and the sanitizers when compared with E. coli K-12 and L. innocua.
Lizanel Feliciano; Jianrong Li; Jaesung Lee; Melvin A Pascall
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2012-12-05
Journal Detail:
Title:  PloS one     Volume:  7     ISSN:  1932-6203     ISO Abbreviation:  PLoS ONE     Publication Date:  2012  
Date Detail:
Created Date:  2012-12-11     Completed Date:  2013-06-11     Revised Date:  2013-07-11    
Medline Journal Info:
Nlm Unique ID:  101285081     Medline TA:  PLoS One     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e50273     Citation Subset:  IM    
Department of Food Science and Technology, The Ohio State University, Columbus, Ohio, United States of America.
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MeSH Terms
Bacteria / drug effects*
Colony Count, Microbial
Disinfectants / pharmacology*
Norovirus / drug effects*
Quaternary Ammonium Compounds / pharmacology*
Sodium Hypochlorite / pharmacology*
Grant Support
Reg. No./Substance:
0/Disinfectants; 0/Quaternary Ammonium Compounds; 7681-52-9/Sodium Hypochlorite

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

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