Document Detail


The use of Lactobacillus brevis PS1 to in vitro inhibit the outgrowth of Fusarium culmorum and other common Fusarium species found on barley.
MedLine Citation:
PMID:  20580986     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A total of 129 lactic acid bacteria (LAB) were screened for antifungal activity against common Fusarium spp. isolated from brewing barley. Four out of the five most inhibiting isolates were identified as Lactobacillus brevis, whereas one belonged to Weissella cibaria. L. brevis PS1, the isolate showing the largest inhibition spectrum, was selected and the influence of its freeze-dried cell-free supernatant (cfsP) on germination of macroconidia as well as mycelia growth was investigated using Fusarium culmorum as target organism.Addition of cfsP into the growth medium at concentrations > or = 2% altered the growth morphology of F.culmorum, whereas at concentrations > 5% the outgrowth of germ tubes from macroconidia was delayed and distorted. The presence of 10% cfsP completely inhibited the outgrowth of F. culmorum macroconidia. The activity of the compounds produced by L. brevis PS1 was higher at low pH values, i.e. pH < 5. Heating and/or proteolytic treatment reduced the inhibitory activity of cfsP, indicating that L. brevis produces organic acids and proteinaceous compounds which are active against Fusarium spp.
Authors:
A Mauch; F Dal Bello; A Coffey; E K Arendt
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of food microbiology     Volume:  141     ISSN:  1879-3460     ISO Abbreviation:  Int. J. Food Microbiol.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-06-25     Completed Date:  2010-12-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8412849     Medline TA:  Int J Food Microbiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  116-21     Citation Subset:  IM    
Affiliation:
Department of Food Science, Food Technology and Nutrition, National University of Ireland, Cork, Ireland.
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MeSH Terms
Descriptor/Qualifier:
Antifungal Agents / pharmacology*
Culture Media
Fusarium / growth & development*,  isolation & purification
Hordeum / microbiology*
Hot Temperature
Hydrogen-Ion Concentration
Hydrolysis
Lactobacillus brevis / isolation & purification,  metabolism*
Microbial Sensitivity Tests
Pest Control, Biological / methods*
Chemical
Reg. No./Substance:
0/Antifungal Agents; 0/Culture Media

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


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