Linked Life Data

8450768

Source:http://linkedlifedata.com/resource/pubmed/id/8450768

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1993-4-15
pubmed:abstractText
Various studies have shown the mutagenicity of red wine. The major mutagens identified in red wine have been flavonoids, i.e. rutin and its aglycone quercetin. Besides flavonoids, however, it has recently been reported that H2O2 may account for the mutagenicity of red wine in the L-Arabinose resistance test. In the present study we report on the role of flavonoids in the mutagenicity of red wine in the Ames assay. Different wines from Portugal and Spain have been tested after concentration in XAD-2 columns in strains TA98 and TA104 of Salmonella typhimurium concurrently with the determination of the respective content of quercetin by HPLC. A similar approach was used for pilot scale productions of red wines. In all cases quercetin could be demonstrated as the major mutagen in red wines. The levels of quercetin in finished wines and during the wine-making process showed a good fit with the levels of mutagenicity detected. Catalase had no effect whatsoever on the mutagenicity of wines in both TA98 and TA104. These results do not rule out a role for H2O2 in the mutagenicity of wines, detected in other genetic end-points, because H2O2 can be formed from the auto-oxidation of quercetin.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0267-8357
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
51-5
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Quercetin and the mutagenicity of wines.
pubmed:affiliation
Department of Genetics, Faculty of Medical Sciences UNL, Lisbon, Portugal.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't