Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/5821
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dc.contributor.authorMartins, A. P.-
dc.contributor.authorSalgueiro, L.-
dc.contributor.authorVila, R.-
dc.contributor.authorTomi, F.-
dc.contributor.authorCañigueral, S.-
dc.contributor.authorCasanova, J.-
dc.contributor.authorCunha, A. Proença da-
dc.contributor.authorAdzet, T.-
dc.date.accessioned2008-09-26T17:42:21Z-
dc.date.available2008-09-26T17:42:21Z-
dc.date.issued1998en_US
dc.identifier.citationPhytochemistry. 49:7 (1998) 2019-2023en_US
dc.identifier.urihttp://hdl.handle.net/10316/5821-
dc.description.abstractThe essential oils from Piper capense, P. nigrum, P. guineense and P. umbellatum from S. Tomé e Príncipe were investigated for the first time. They were analysed by GC, GC-mass spectrometry and 13C NMR. Monoterpene hydrocarbons were the main group of constituents in three of the samples (P. capense, P. nigrum and P. umbellatum), whereas for the other species (P. guineense) phenylpropanoid derivatives were the most important ones. [beta]-Pinene (32.5%) and [beta]-caryophyllene (12.6%) were the major compounds in the volatile oil of P. capense. Dillapiole (44.8%), followed by myristicin (9.8%), were the main constituents of P. guineense. The most important constituents in the essential oil of P. nigrum were limonene (18.8%), [beta]-caryophyllene (15.4%), sabinene (16.5%) and [beta]-pinene (10.7%). The essential oil of P. umbellatum was characterised by its high [beta]-pinene (26.8%), [alpha]-pinene (17.6%) and (E)-nerolidol (12.4%) content.en_US
dc.description.urihttp://www.sciencedirect.com/science/article/B6TH7-40M54TJ-10/1/a5c8bec3d552f4aa2b7ee01483ad1e55en_US
dc.format.mimetypeaplication/PDFen
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectPiper capenseen_US
dc.subjectP. guineenseen_US
dc.subjectP. nigrumen_US
dc.subjectP. umbellatumen_US
dc.subjectPiperaceaeen_US
dc.subjectessential oilsen_US
dc.subjectGC-mass spectrometryen_US
dc.subject13C NMRen_US
dc.titleEssential oils from four Piper speciesen_US
dc.typearticleen_US
item.languageiso639-1en-
item.fulltextCom Texto completo-
item.grantfulltextopen-
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