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The composition of dalea formosa oil determined by steam distillation and solid-phase microextraction / Mary E. Lucero in The journal of essential oil research, Vol. 17 N° 6 (Novembre-Décembre 2005) 

Public ISBD [article]  in The journal of essential oil research > Vol. 17 N° 6 (Novembre-Décembre 2005) . - pp. 645-647 Titre : The composition of dalea formosa oil determined by steam distillation and solid-phase microextraction Type de document : texte imprimé Auteurs : Mary E. Lucero, Auteur ; Rick E. Estell, Auteur ; Ruth L. Sedillo, Auteur Année de publication : 2006 Article en page(s) : pp. 645-647 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Dalea  formosa  Fabacae  Feather  dalea  Essential  oil  composition  α-pinene Résumé : Dalea formosa Torr. (feather dalea, featherplume) was collected from the Jornada Experimental Range in south central New Mexico. Current year's growth was collected from 10 plants, all found within an approximate 50 m radius of the GPS coordinates N32°40.645′ and W106°33.601′ during July 2001. Composite samples of the plants were steam distilled in triplicate, and the composite oil was analyzed using both GC-FID and GC/MS. The volatile composition of plants collected from the same site was also examined using solid-phase microextraction (SPME) with a 100 μm polydimethylsiloxane fiber. Mass spectra and retention indices were used to identify 58 previously described compounds. The retention index and EI mass spectra are provided for one unknown. The most abundant constituents of the oil were α-pinene (31.7%), camphene (8.4%) and limonene (8.1%). In contrast, α-pinene (33.6%), β-pinene (13.2%) and camphene (11.1%) were the most abundant constituents of the SPME samples. This difference in composition may be due to either sampling technique or harvesting time. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9699022#.Ub8LHdh-Tp- [article] The composition of dalea formosa oil determined by steam distillation and solid-phase microextraction [texte imprimé] / Mary E. Lucero, Auteur ; Rick E. Estell, Auteur ; Ruth L. Sedillo, Auteur . - 2006 . - pp. 645-647. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 17 N° 6 (Novembre-Décembre 2005) . - pp. 645-647 Mots-clés : Dalea  formosa  Fabacae  Feather  dalea  Essential  oil  composition  α-pinene Résumé : Dalea formosa Torr. (feather dalea, featherplume) was collected from the Jornada Experimental Range in south central New Mexico. Current year's growth was collected from 10 plants, all found within an approximate 50 m radius of the GPS coordinates N32°40.645′ and W106°33.601′ during July 2001. Composite samples of the plants were steam distilled in triplicate, and the composite oil was analyzed using both GC-FID and GC/MS. The volatile composition of plants collected from the same site was also examined using solid-phase microextraction (SPME) with a 100 μm polydimethylsiloxane fiber. Mass spectra and retention indices were used to identify 58 previously described compounds. The retention index and EI mass spectra are provided for one unknown. The most abundant constituents of the oil were α-pinene (31.7%), camphene (8.4%) and limonene (8.1%). In contrast, α-pinene (33.6%), β-pinene (13.2%) and camphene (11.1%) were the most abundant constituents of the SPME samples. This difference in composition may be due to either sampling technique or harvesting time. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9699022#.Ub8LHdh-Tp-