Linked Life Data

11958614

Source:http://linkedlifedata.com/resource/pubmed/id/11958614

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2002-4-17
pubmed:abstractText
The plantain is used in herbal medicines and for pasturage. Two cultivars of plantain (Plantago lanceolata L.), Grasslands Lancelot and Ceres Tonic, were sown in spring. Changes in catalpol, aucubin, and acteoside concentrations in the leaves during the growing season and by drying after harvesting were quantitatively determined by high-performance liquid chromatography. The concentration of catalpol was relatively low, fluctuating between 1 and 2% of dry matter during the growing season, and there was no clear-cut seasonal change. From spring to midfall, the aucubin concentration increased from 2.1 to 4.8% in Grasslands Lancelot and from 1.0 to 2.7% in Ceres Tonic. These increases were gradual over the season, except for during midsummer, when aucubin concentrations were relatively constant. The acteoside concentration increased from 3.4 to 7.1% in Grasslands Lancelot and from 1.5 to 4.1% in Ceres Tonic over the course of the growing season, although in the summer it declined steadily to lows of 2.5% in Grasslands Lancelot and 1.9% in Ceres Tonic. Our data suggested that midfall was the appropriate time for harvesting plantain for medicinal use. The concentrations of the bioactive compounds steadily decreased in the initial stages of drying both under natural climatic conditions and at 60 degrees C. The development of processing methods to minimize the loss of bioactive compounds is imperative.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0021-8561
pubmed:author
pubmed:issnType
Print
pubmed:day
24
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2514-8
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Changes in the concentrations of bioactive compounds in plantain leaves.
pubmed:affiliation
Pasture Plants Breeding Laboratory, Department of Animal Production and Grasslands Farming, National Agricultural Research Center for the Tohoku Region, 4 Akahira, Shimokuriyagawa, Morioka, Iwate 020-0198, Japan. fumi@affrc.go.jp
pubmed:publicationType
Journal Article