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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleEssential oil from leaves of Cryptocarya mandioccana Meisner (Lauraceae): Composition and intraspecific chemical variabilitypt_BR
dc.contributor.authorTelascrea, Mpt_BR
dc.contributor.authorde Araujo, CCpt_BR
dc.contributor.authorMarques, MOMpt_BR
dc.contributor.authorFacanali, Rpt_BR
dc.contributor.authorde Moraes, PLRpt_BR
dc.contributor.authorCavalheiro, AJpt_BR
unicamp.authorUNESP, Dept Quim Organ, Inst Quim, BR-14800900 Araraquara, SP, Brazil Inst Agron Campinas, Ctr Genet Biol Mol & Fitoquim, BR-13020902 Campinas, SP, Brazil Univ Estadual Campinas, Dept Bot, Inst Biol, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subjectCryptocarya mandioccanapt_BR
dc.subjectessential oilpt_BR
dc.subjectretention indexpt_BR
dc.subjectintraspecific variabilitypt_BR
dc.subject.wosSesquiterpene Biosynthesispt_BR
dc.subject.wosGermacrene Dpt_BR
dc.description.abstractThe composition of the essential oil from leaves of Cryptocarya mandioccana has been determined by chromatographic fractionation and GC-FID, GC-MS and C-13 NMR analyses, yielding the identification of 64 compounds with predominance of isomeric sesquiterpenes with molecular weights of 204. The main components of the oil obtained by hydrodistillation were beta-caryophyllene, spathulenol, caryophyllene oxide, delta-cadinene, germacrene D, benzaldehyde and bicyclogermacrene. However, the oil obtained by steam distillation contained higher levels of sesquiterpene hydrocarbons, with predominance of P-caryophyllene (C), germacrene D (G) and bicyclogermacrene (B), and was considered to be more representative of the composition of the oil in its natural state. The intraspecific chemical variability of the essential oil obtained by steam distillation was evaluated within populations of trees growing at three separate locations in the state of Sao Paulo, Brazil. Three distinct chemical groups could be characterised due to differences in the relative percentages of the three main sesquiterpenes from essential oil: CGB [relative contents of C (14-34%), G (5-28%), B (8-15%)], BCG [B (17-34%), C (9-24%), G (12-25%)] and GCB [G (22-42%), C (4-17%), B (7-15%)]. Individuals from groups CGB and BCG were found to be more frequent at south locations while group GCB is predominant in north location. (c) 2006 Elsevier Ltd. All rights
dc.relation.ispartofBiochemical Systematics And Ecologypt_BR
dc.relation.ispartofabbreviationBiochem. Syst. Ecol.pt_BR
dc.publisherPergamon-elsevier Science Ltdpt_BR
dc.identifier.citationBiochemical Systematics And Ecology. Pergamon-elsevier Science Ltd, v. 35, n. 4, n. 222, n. 232, 2007.pt_BR
dc.sourceWeb of Sciencept_BR
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