title: Influence of the species and geographical location on volatile composition of Spanish oak wood (Quercus petraea Liebl. and Quercus robur L.).
abstract: The influence of the species and geographical origin on the volatile composition of wood samples from 80 Spanish oaks (55 Quercus petraea Liebl. and 25 Quercus robur L.) has been studied. Oak volatile components were isolated by simultaneous distillation-extraction and analyzed by gas chromatography-mass spectrometry. cis- and trans-beta-methyl-gamma-octalactones were the main constituents, the cis stereoisomer being predominant. Other important volatile components were furfural, 5-methylfurfural, guaiacol, eugenol, vanillin, or syringaldehyde. The main differences were established between species, Quercus petraea being significantly richer in volatile compounds than Quercus robur; however, the variability found among trees was high. Differences among geographical provenances were much less important than those found between species.
authors.affiliation: Area de Tecnología de los Alimentos, Facultad de Ciencias Químicas, Campus Universitario, 10 Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain.
authors.forename: Emilia
authors.initials: E
authors.lastname: Guchu
authors.forename: M Consuelo
authors.initials: MC
authors.lastname: Díaz-Maroto
authors.forename: Ignacio Javier
authors.initials: IJ
authors.lastname: Díaz-Maroto
authors.forename: Pablo
authors.initials: P
authors.lastname: Vila-Lameiro
authors.forename: M Soledad
authors.initials: MS
authors.lastname: Pérez-Coello
mesh_terms: D001547:Benzaldehydes / Q000032:analysis; D004777:Environment; D029962:Fagaceae / Q000737:chemistry*; D005662:Furaldehyde / Q000032:analysis; D008401:Gas Chromatography-Mass Spectrometry; D006139:Guaiacol / Q000032:analysis; D007783:Lactones / Q000032:analysis; D013030:Spain; D013045:Species Specificity; D014835:Volatilization; D014934:Wood
chemical_list: D001547:Benzaldehydes; D007783:Lactones; D006139:Guaiacol; C100058:vanillin; D005662:Furaldehyde