Document Detail


Combined effect of bacteriocin-producing lactic acid bacteria and lactoperoxidase system activation on Listeria monocytogenes in refrigerated raw milk.
MedLine Citation:
PMID:  9351220     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The bactericidal activity of three bacteriocin-producing lactic acid bacteria alone and in combination with milk lactoperoxidase (LP) system activation against Listeria monocytogenes in refrigerated raw milk was studied. After 4 d at 4 degrees C, the population of L. monocytogenes in milk inoculated with bacteriocin-producing Lactococcus lactis subsp. lactis ATCC 11454, L. lactis subsp. lactis ESI 515 or Enterococcus faecalis INIA 4 was reduced by 0.21-0.24 log units. Activation of the LP system did not enhance inhibition at this temperature. After 4 d at 8 degrees C, L. monocytogenes levels in the non-activated LP system milk inoculated with L. lactis subsp. lactis ATCC 11454, L. lactis subsp. lactis ESI 515 or Ent. faecalis INIA 4 were reduced by 1.87, 1.54 and 1.11 log units compared to control milk, whereas in the activated LP system milk, this reduction was 1.99, 2.10 and 1.06, respectively. The higher nisin production by L. lactis subsp. lactis ESI 515 in milk with activated LP system than in non-activated LP system milk was responsible for the more pronounced decrease of L. monocytogenes counts in the former.
Authors:
E Rodríguez; J Tomillo; M Nuñez; M Medina
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of applied microbiology     Volume:  83     ISSN:  1364-5072     ISO Abbreviation:  J. Appl. Microbiol.     Publication Date:  1997 Sep 
Date Detail:
Created Date:  1997-12-11     Completed Date:  1997-12-11     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9706280     Medline TA:  J Appl Microbiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  389-95     Citation Subset:  IM    
Affiliation:
Departamento de Tecnología de Alimentos, CIT-INIA, Madrid, Spain.
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MeSH Terms
Descriptor/Qualifier:
Animals
Bacteriocins / metabolism*
Cold Temperature
Colony Count, Microbial
Enterococcus faecalis / metabolism*
Enzyme Activation
Hydrogen-Ion Concentration
Lactic Acid
Lactococcus lactis / metabolism*
Lactoperoxidase / metabolism*
Listeria monocytogenes / growth & development*
Milk / enzymology,  microbiology*
Refrigeration
Chemical
Reg. No./Substance:
0/Bacteriocins; 50-21-5/Lactic Acid; EC 1.11.1.-/Lactoperoxidase

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


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