Document Detail


Prevalence and numbers of coliphages and Campylobacter jejuni bacteriophages in New Zealand foods.
MedLine Citation:
PMID:  17276534     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Vegetable samples were tested for the presence of coliphages. None of the 55 samples contained these phages at concentrations greater than 10 g(-1) (the limit of detection). Spiking and recovery experiments indicated that the method was efficient at detecting coliphage T4 added to the food, and so it was concluded that phage titres were not being falsely underestimated. In addition 51 samples of chicken skin from retail portions were tested for the presence and numbers of coliphages and for presence only of Campylobacter jejuni phages. Coliphages were isolated from 46 samples (90.2% positive), at up to 2570 PFU 10 g sample(-1) but no C. jejuni phages were isolated. Several other methods were used to isolate C. jejuni phages from retail chicken but none was successful. However, when pooled whole chicken rinses from 39 flocks were tested for the presence of C. jejuni phages, 11 (28.2%) of the flocks were positive. It is possible that phages present on birds at the start of processing were either inactivated or simply diluted out during spin chilling. These data add to the body of information indicating that phages can readily be isolated from certain foods and indicate that consumers are exposed to them on a regular basis.
Authors:
An-Chi Tsuei; Gwyneth V Carey-Smith; J Andrew Hudson; Craig Billington; Jack A Heinemann
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-01-16
Journal Detail:
Title:  International journal of food microbiology     Volume:  116     ISSN:  0168-1605     ISO Abbreviation:  Int. J. Food Microbiol.     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-04-02     Completed Date:  2007-06-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8412849     Medline TA:  Int J Food Microbiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  121-5     Citation Subset:  IM    
Affiliation:
Food Safety Programme, ESR Ltd., PO Box 29-181, Ilam, Christchurch, New Zealand.
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MeSH Terms
Descriptor/Qualifier:
Animals
Bacteriophages / isolation & purification*
Campylobacter jejuni / virology*
Chickens / virology
Coliphages / isolation & purification*
Colony Count, Microbial
Food Analysis
Food Contamination / analysis*
Food Handling
Prevalence
Skin / virology
Vegetables / virology*

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


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