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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2002-3-6
pubmed:abstractText
The objective of this study was to estimate the effect of lysozyme on the foaming characteristics of Champagne base wine. Lysozyme additions were made to the musts and also to the wines before and after bentonite or charcoal treatments, which remove endogenous proteins. Treatments with bentonite diminished foamability and foam stability of wines, whatever the dose (30 or 80 g/hL) and variety [Chardonnay, -28%; Pinot noir, -20% (at 30 g/hL)]. An addition of lysozyme in must raised Pinot noir wine foamability by 21%, whereas the difference is hardly perceptible for Chardonnay wine (+3%). Pinot noir and Chardonnay wines, originating from lysozyme-treated musts, in addition to bentonite treatment on the wine, presented higher foamability than wines treated only with bentonite. Lysozyme was removed (91-100%) by the bentonite treatment. Then, it was not responsible for the increase in foamability but seemed to have a protective effect on the wine proteins. When wines were initially treated with bentonite (150 g/hL) and then enriched with 80 g/hL lysozyme, this enzyme was not able to restore foaming properties. Treatments with charcoal always diminished foamability. The average increase in foamability due to an addition of lysozyme after charcoal treatment (80 g/hL) was 23%. Results showed a real positive effect of lysozyme on foam stability when wines have to be treated with charcoal (+25% and +56% for the Pinot noir wine and the Chardonnay wine, respectively, at 30 g/hL).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0021-8561
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1420-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Influence of lysozyme treatments on champagne base wine foaming properties.
pubmed:affiliation
Laboratoire d'Oenologie, URVVC, UPRES EA 2069, Faculté des Sciences, Université de Reims, B.P. 1039, 51687 Reims Cédex 2, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't