title: Essential oil and other constituents from Magnolia ovata fruit.
abstract: The volatile and non-volatile constituents of the unripe fruits of Magnolia ovata (A. St.-Hil.) Spreng. (Magnoliaceae) were studied. The essential oils were obtained by hydrodistillation of the fruit of two plant populations (A and B) and analyzed by GC/FID and GC/MS. The oil of sample A was rich in sesquiterpenes, mainly spathulenol (19.3%), while the oil of sample B showed a predominance of aliphatic compounds, mainly hexadecanoic acid (52.0%). Extracts of the dried fruit contained fourteen known compounds including nine lignoids (magnovatin A, magnovatin B, acuminatin, licarin A, oleiferin A, oleiferin C, kadsurenin M, 4-O-demethylkadsurenim M and 7-epi-virolin), two sesquiterpene lactones (parthenolide and michelenolide) and three alkaloids (lysicamine, lanuginosine and O-methylmoschatoline). Michelenolide, 7-epi-virolin and lisycamine are reported for the first time in the species, while the remaining compounds have already been reported in the leaves and/or trunk bark o f Magnolia ovata. Acetylation o f oleiferin A yielded a ne wcompound, acetyl oleiferin A, whose NMR data and that of michelenolide are furnished.
authors.affiliation: Department of Chemistry, Federal University of Paraná, Curitiba, PR, 81531-990, Brazil.
authors.forename: Letícia F L
authors.initials: LF
authors.lastname: Barros
authors.forename: Carlos Augusto
authors.initials: CA
authors.lastname: Ehrenfried
authors.forename: Dilamara
authors.initials: D
authors.lastname: Riva
authors.forename: Andersson
authors.initials: A
authors.lastname: Barison
authors.forename: Renato
authors.initials: R
authors.lastname: de Mello-Silva
authors.forename: Maria Elida A
authors.initials: ME
authors.lastname: Stefanello
mesh_terms: D000470:Alkaloids / Q000737:chemistry; D005638:Fruit / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D007783:Lactones / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D031566:Magnolia / Q000737:chemistry*; D009822:Oils, Volatile / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry
chemical_list: D000470:Alkaloids; D007783:Lactones; D009822:Oils, Volatile; D012717:Sesquiterpenes