Linked Life Data

19468986

Source:http://linkedlifedata.com/resource/pubmed/id/19468986

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2009-12-30
pubmed:abstractText
The aim of this work was to study the structure-activity relationships of the antioxidant activity of natural coumarins isolated from four Korean medicinal plants (1-17) and four purchased coumarins (18-21). The free radical scavenging and lipid peroxidation assays revealed that five phenolic coumarins, scopoletin (1), aesculetin (2), fraxetin (3), umbelliferone (18) and daphnetin (19), possessed considerable antioxidant activities. The coumarins having a catechol group, 2, 3 and 19, showed significant free radical scavenging activity and inhibitory effects on lipid peroxidation, indicating that the catechol group significantly contributed to the antioxidant activities of coumarins. In contrast, the sugar moiety markedly reduced the activities of coumarin glycosides. The results also demonstrate that the alpha-pyrone ring of coumarins significantly enhanced the capacity of inhibiting oxidative reactions of coumarins.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1099-1573
pubmed:author
pubmed:copyrightInfo
(c) 2009 John Wiley & Sons, Ltd.
pubmed:issnType
Electronic
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
101-6
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Antioxidant activities of coumarins from Korean medicinal plants and their structure-activity relationships.
pubmed:affiliation
College of Pharmacy, Chungnam National University, Daejeon 305-764, Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't