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Composition and chemical variability in the essential oils of hyptidendron canum (Pohl ex Benth.) harley / Tatiana S. Fiuza in The journal of essential oil research, Vol. 22 N° 2 (Mars/Avril 2010) 

Public ISBD [article]  in The journal of essential oil research > Vol. 22 N° 2 (Mars/Avril 2010) . - pp. 159 - 163 Titre : Composition and chemical variability in the essential oils of hyptidendron canum (Pohl ex Benth.) harley Type de document : texte imprimé Auteurs : Tatiana S. Fiuza, Auteur ; Simone M. T. Sabóia-Morais, Auteur ; José R. Paula, Auteur Année de publication : 2010 Article en page(s) : pp. 159 - 163 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Hyptidendron  canum  Lamiaceae  Essential  oil  composition  β-caryophyllene  Amorpha-4,7(11)-dieno  Bicyclogermacrene  Sabinene  β-copaene-4a-ol  δ-3-carene  Carotol  α-humulene  Chemical  variability Index. décimale : 646 Résumé : The leaves and inflorescences of the ornamental and medicinal aromatic plant Hyptidendron canum were collected from four sites in the Brazilian Cerrado and their essential oils were analyzed by GC and GC/MS. Results obtained by Principal Component and Cluster analysis indicated a high chemovariability in the oils from different sites. Sesquiterpene hydrocarbons (42.6–94.6%) were the main group of volatiles, although differences in quantities of the major constituents were observed, mainly β-caryophyllene (6.0–41.6%) and amorpha-4,7(11)-diene (6.1–30.1%), and bicyclogermacrene (3.7–24.8%) with the highest levels in leaves from Bela Vista and inflorescence from the Silvânia site, respectively. On the other hand, sabinene (0–11.7%) and β-copaene-4a-ol (0–10.3%), and δ-3-carene (0–13.0%) showed the highest percentages in oil inflorescences from the Silvânia and Hidrolândia populations. High amounts of α-humulene (1.4–13.9%) and carotol (0–12.4%) were observed in leaf oils from Silvânia and Hidrolândia, respectively. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/50 [article] Composition and chemical variability in the essential oils of hyptidendron canum (Pohl ex Benth.) harley [texte imprimé] / Tatiana S. Fiuza, Auteur ; Simone M. T. Sabóia-Morais, Auteur ; José R. Paula, Auteur . - 2010 . - pp. 159 - 163. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 22 N° 2 (Mars/Avril 2010) . - pp. 159 - 163 Mots-clés : Hyptidendron  canum  Lamiaceae  Essential  oil  composition  β-caryophyllene  Amorpha-4,7(11)-dieno  Bicyclogermacrene  Sabinene  β-copaene-4a-ol  δ-3-carene  Carotol  α-humulene  Chemical  variability Index. décimale : 646 Résumé : The leaves and inflorescences of the ornamental and medicinal aromatic plant Hyptidendron canum were collected from four sites in the Brazilian Cerrado and their essential oils were analyzed by GC and GC/MS. Results obtained by Principal Component and Cluster analysis indicated a high chemovariability in the oils from different sites. Sesquiterpene hydrocarbons (42.6–94.6%) were the main group of volatiles, although differences in quantities of the major constituents were observed, mainly β-caryophyllene (6.0–41.6%) and amorpha-4,7(11)-diene (6.1–30.1%), and bicyclogermacrene (3.7–24.8%) with the highest levels in leaves from Bela Vista and inflorescence from the Silvânia site, respectively. On the other hand, sabinene (0–11.7%) and β-copaene-4a-ol (0–10.3%), and δ-3-carene (0–13.0%) showed the highest percentages in oil inflorescences from the Silvânia and Hidrolândia populations. High amounts of α-humulene (1.4–13.9%) and carotol (0–12.4%) were observed in leaf oils from Silvânia and Hidrolândia, respectively. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/50