Document Detail


Smearing of soft cheese with Enterococcus faecium WHE 81, a multi-bacteriocin producer, against Listeria monocytogenes.
MedLine Citation:
PMID:  19028299     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Enterococcus faecium WHE 81, a multi-bacteriocin producer, was tested for its antimicrobial activity on Listeria monocytogenes in Munster cheese, a red smear soft cheese. The naturally delayed and superficial contamination of this type of cheese allowed the use of E. faecium WHE 81 at the beginning of the ripening as a surface culture. A brine solution inoculated at 10(5)CFU of E. faecium WHE 81 per mL was sprayed on the cheese surface during the first smearing operation. On day 7, smearing of cheese samples with a brine solution at 10(2)CFU of L. monocytogenes per mL yielded initial cell counts of approximately 50 CFU g(-1) of the pathogen on the cheese surface. Although, in some instances, L. monocytogenes could survive (<50 CFU g(-1)) in the presence of E. faecium WHE 81, it was unable to initiate growth. In control samples however, L. monocytogenes counts often exceeded 10(4) CFU g(-1). In other respects, E. faecium WHE 81, which naturally existed in Munster cheese, did not adversely impact on the ripening process.
Authors:
Esther Izquierdo; Eric Marchioni; Dalal Aoude-Werner; Claude Hasselmann; Saïd Ennahar
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Publication Detail:
Type:  Journal Article     Date:  2008-08-22
Journal Detail:
Title:  Food microbiology     Volume:  26     ISSN:  1095-9998     ISO Abbreviation:  Food Microbiol.     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2008-11-25     Completed Date:  2009-03-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8601127     Medline TA:  Food Microbiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  16-20     Citation Subset:  IM    
Affiliation:
Laboratoire de Chimie Analytique et Sciences de l'Aliment (UMR 7178), Faculté de Pharmacie, IPHC-DSA, ULP, CNRS, 74 route du Rhin, 67400 Illkirch, France.
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MeSH Terms
Descriptor/Qualifier:
Antibiosis*
Bacteriocins / biosynthesis*,  pharmacology
Cheese / microbiology*,  standards
Colony Count, Microbial
Consumer Product Safety
Enterococcus faecium / metabolism,  physiology*
Fermentation
Food Contamination / prevention & control
Food Microbiology
Listeria monocytogenes / drug effects,  growth & development*
Chemical
Reg. No./Substance:
0/Bacteriocins

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


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