Linked Life Data

18498167

Source:http://linkedlifedata.com/resource/pubmed/id/18498167

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2008-6-19
pubmed:abstractText
Two new colorless phenolic compounds were formed from malvidin 3- O-glucoside incubated in an ethanolic solution. Their structures were characterized by means of one- and two-dimensional NMR analysis and through electrospray ionization-mass spectrometry. As compared to the structure of the initial anthocyanin skeleton, the first new compound showed the presence of two fused five-membered rings replacing the pyran ring and of a carbonyl function on the 2-position. The first five-membered ring was shown to result from the formation of a new linkage between the B ring 6'-position and the C ring 4-position, while the second was a dihydro furan ring with an oxygenated ether linkage between the 8a-position and the 3-position. The second isolated compound was shown to have similar structure with an ethyl ether moiety in the 3-position instead of the glucose moiety. A mechanism explaining the formation of the isolated compounds involving the passage through the chalcone form of the anthocyanin and an oxidation process is proposed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1520-5118
pubmed:author
pubmed:issnType
Electronic
pubmed:day
25
pubmed:volume
56
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4584-91
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
New compounds obtained by evolution and oxidation of malvidin 3-O-glucoside in ethanolic medium.
pubmed:affiliation
INRA-UMR Sciences pour l'CEnologie, 2 Place Viala, 34060 Montpellier, France. nouressafi@yahoo.fr
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't