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Seasonal variation of the (E)-nerolidol and other volatile compounds within ten different cultivated populations of baccharis dracunculifolia D.C. (Asteraceae) / Joao Paulo B. de Sousa in The journal of essential oil research, Vol. 21 N° 4 (Juillet/Août 2009) 

Public ISBD [article]  in The journal of essential oil research > Vol. 21 N° 4 (Juillet/Août 2009) . - pp. 308-314 Titre : Seasonal variation of the (E)-nerolidol and other volatile compounds within ten different cultivated populations of baccharis dracunculifolia D.C. (Asteraceae) Type de document : texte imprimé Auteurs : Joao Paulo B. de Sousa, Auteur ; Renata F. Jorge, Auteur ; Mateus F. Leite, Auteur Article en page(s) : pp. 308-314 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Baccharis  dracunculifolia  Asteraceae  (E)-nerolidol  Essential  oil  composition  Seasonal  effects Index. décimale : 646 Résumé : Initially, the seeds of Baccharis dracunculifolia were collected from populations of 10 different regions, and the cultivation experiment was carried out in an experimental area of 1,800 m2 by cultivating 100 individuals of each population. The essential oil analyses were performed on both GC-FID and GC/MS, which allowed the identification of 14 compounds. The oil yield varied from 0.31% to 0.70% among populations and season. The major oxygenated sesquiterpenes in the cultivated experiment were (E)-nerolidol (32%) and spathulenol (17%). The mean concentration in the plant of (E)-nerolidol was five times higher in March (136.53 mg/100 g of plant) than it was in July (25.03 mg/100 g of plant). The mean concentration of spathulenol increased about three fold from July (16.25 mg/100 g of plant) to April (47.50 mg/100 g of plant). DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top [article] Seasonal variation of the (E)-nerolidol and other volatile compounds within ten different cultivated populations of baccharis dracunculifolia D.C. (Asteraceae) [texte imprimé] / Joao Paulo B. de Sousa, Auteur ; Renata F. Jorge, Auteur ; Mateus F. Leite, Auteur . - pp. 308-314. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 21 N° 4 (Juillet/Août 2009) . - pp. 308-314 Mots-clés : Baccharis  dracunculifolia  Asteraceae  (E)-nerolidol  Essential  oil  composition  Seasonal  effects Index. décimale : 646 Résumé : Initially, the seeds of Baccharis dracunculifolia were collected from populations of 10 different regions, and the cultivation experiment was carried out in an experimental area of 1,800 m2 by cultivating 100 individuals of each population. The essential oil analyses were performed on both GC-FID and GC/MS, which allowed the identification of 14 compounds. The oil yield varied from 0.31% to 0.70% among populations and season. The major oxygenated sesquiterpenes in the cultivated experiment were (E)-nerolidol (32%) and spathulenol (17%). The mean concentration in the plant of (E)-nerolidol was five times higher in March (136.53 mg/100 g of plant) than it was in July (25.03 mg/100 g of plant). The mean concentration of spathulenol increased about three fold from July (16.25 mg/100 g of plant) to April (47.50 mg/100 g of plant). DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top