Linked Life Data

12169308

Source:http://linkedlifedata.com/resource/pubmed/id/12169308

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2002-8-9
pubmed:abstractText
The essential oil profile of maca (Lepidium meyenii) obtained from Lima, Peru, was examined. Steam distillates of the aerial parts of L. meyenii were continuously extracted with pentane and the pentane extracts analyzed by GC/MS. Retention indices and mass spectral data were used to identify 53 oil components. Phenyl acetonitrile (85.9%), benzaldehyde (3.1%), and 3-methoxyphenylacetonitrile (2.1%) were the major components of the steam distilled oil. The oil of L. meyenii was tested for phytotoxic, cyanobactericidal, and antitermite activity. The oil was selectively toxic towards the cyanobacterium Oscillatoria perornata compared to the green alga Selenastrum capricornutum, with complete growth inhibition at 100 microg/ml. Mortality of the Formosan subterranean termite, Coptotermes formosanus, was numerically, but not significantly, higher when held on filter paper treated with maca oil. At 1% (w/w), maca oil also appeared to act as a feeding deterrent to termites. Several minor components of the essential oil of maca including 3-methoxyphenylacetonitrile and benzylthiocyanate were significantly active against the Formosan termite. This is the first report on the essential oil composition of L. meyenii.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0031-9422
pubmed:author
pubmed:issnType
Print
pubmed:volume
61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
149-55
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Composition of the essential oil of Lepidium meyenii (Walp).
pubmed:affiliation
Natural Products Utilization Research Unit, USDA-ARS, Box 8048, University, MS 38677, USA. matallez@ars.usda.gov
pubmed:publicationType
Journal Article