Linked Life Data

17914871

Source:http://linkedlifedata.com/resource/pubmed/id/17914871

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
22
pubmed:dateCreated
2007-10-29
pubmed:abstractText
The degradation mechanism of cyanidin 3-rutinoside in the presence of (-)-epicatechin and litchi pericarp polyphenol oxidase (PPO) was investigated using several model systems. The enzymically generated (-)-epicatechin o-quinone could induce cyanidin 3-rutinoside degradation. The results obtained in this study allowed us to propose a pathway for cyanidin 3-rutinoside degradation in the presence of (-)-epicatechin and litchi pericarp PPO. First, enzymatic oxidation of (-)-epicatechin produced the corresponding o-quinone, and then cyanidin 3-rutinoside and (-)-epicatechin competed for (-)-epicatechin o-quinone, resulting in degradation of cyanidin 3-rutinoside and regeneration of (-)-epicatechin. Moreover, the results of kinetic studies indicated this competition was influenced by both (-)-epicatechin concentration and cyanidin 3-rutinoside concentration in the model system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0021-8561
pubmed:author
pubmed:issnType
Print
pubmed:day
31
pubmed:volume
55
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
9074-8
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Degradation of cyanidin 3-rutinoside in the presence of (-)-epicatechin and litchi pericarp polyphenol oxidase.
pubmed:affiliation
College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, People's Republic of China.
pubmed:publicationType
Journal Article