Document Detail

Growth and volatile compound production by Brettanomyces/Dekkera bruxellensis in red wine.
MedLine Citation:
PMID:  18194246     Owner:  NLM     Status:  MEDLINE    
AIMS: Brettanomyces/Dekkera bruxellensis is a particularly troublesome wine spoilage yeast. This work was aimed at characterizing its behaviour in terms of growth and volatile compound production in red wine. METHODS AND RESULTS: Sterile red wines were inoculated with 5 x 10(3) viable cells ml(-1) of three B. bruxellensis strains and growth and volatile phenol production were followed for 1 month by means of plate counts and gas chromatography-mass spectrometry (GC-MS) respectively. Maximum population levels generally attained 10(6)-10(7) colony forming units (CFU) ml(-1) and volatile phenol concentrations ranged from 500 to 4000 microg l(-1). Brettanomyces bruxellensis multiplication was also accompanied by the production of organic acids (from C(2) to C(10)), short chain acid ethyl-esters and the 'mousy off-flavour' component 2-acetyl-tetrahydropyridine. CONCLUSIONS: Different kinds of 'Brett character' characterized by distinct metabolic and sensory profiles can arise in wine depending on the contaminating strain, wine pH and sugar content and the winemaking stage at which contamination occurs. SIGNIFICANCE AND IMPACT OF THE STUDY: We identified new chemical markers that indicate wine defects caused by B. bruxellensis. Further insight was provided into the role of some environmental conditions in promoting wine spoilage.
A Romano; M C Perello; G de Revel; A Lonvaud-Funel
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Publication Detail:
Type:  Journal Article     Date:  2008-01-09
Journal Detail:
Title:  Journal of applied microbiology     Volume:  104     ISSN:  1365-2672     ISO Abbreviation:  J. Appl. Microbiol.     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-05-22     Completed Date:  2008-10-10     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706280     Medline TA:  J Appl Microbiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1577-85     Citation Subset:  IM    
UMR 1219 Oenologie, Université Victor Segalen Bordeaux 2, INRA, ISVV, Talence, France.
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MeSH Terms
Biological Markers / analysis
Food Microbiology*
Mycological Typing Techniques
Phenols / analysis
Pyridines / analysis
Vitis / microbiology
Yeasts / growth & development*,  metabolism
Reg. No./Substance:
0/2-acetyltetrahydopyridine; 0/Biological Markers; 0/Phenols; 0/Pyridines

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