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Essential oil composition from duguetia species (Annonaceae) / José Guilherme S. Maia in The journal of essential oil research, Vol. 18 N° 1 (Janvier-Fevrier 2006) 

Public ISBD [article]  in The journal of essential oil research > Vol. 18 N° 1 (Janvier-Fevrier 2006) . - pp. 60-63 Titre : Essential oil composition from duguetia species (Annonaceae) Type de document : texte imprimé Auteurs : José Guilherme S. Maia, Auteur ; Eloisa Helena A. Andrade, Auteur ; Léa Maria M. Carreira, Auteur Année de publication : 2006 Article en page(s) : pp. 60-63 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Duguetia  eximia  Duguetia  flagellaris  Duguetia  picnastera  Duguetia  riparia  Duguetia  trunciflora  Annonaceae  Essential  oil  composition  α-eudesmol  Spathulenol  Caryophyllene  oxide  α-pinene Résumé : The leaf and fine stems and the bark oils of Duguetia eximia, D. flagellaris, D. pycnastera, D. riparia and D. trunciflora were obtained by hydrodistillation and analyzed by GC and GC/MS. The main constituents found in the leaf and fine stems oil of D. eximia were α-eudesmol (80.3%) and spathulenol (5.0%). The leaf and fine stems oil of D. flagellaris was dominated by spathulenol (58.7%) and α-muurolol (6.2%); the bark oil was dominated by germacrene D (16.5%), cyperene (10.6%), α-muurolol (8.6%), humulene epoxide II (5.3%) and spathulenol (5.0%). The major components identified in the leaf and fine stems oil of D. pycnastera were spathulenol (52.2%), allo-aromadendrene (9.1%), germacrene D (7.1%) and elemol (5.1%). The leaf and fine stems oil of D. riparia contained spathulenol (46.5%), caryophyllene oxide (28.9%) and α-pinene (6.1%) as their main compounds. The leaf and fine stems oil of D. trunciflora was dominated by α-pinene (21.1%), bicyclogermacrene (17.6%), bulnesol (10.6%), spathulenol (10.5%), guaiol (8.1%), globulol (5.7%) and humulene epoxide II (5.0%); the bark oil was dominated by β-phellandrene (45.7%), guaiol (8.3%) and α-cadinol (7.4%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699386#.Ua75bNgYrOk [article] Essential oil composition from duguetia species (Annonaceae) [texte imprimé] / José Guilherme S. Maia, Auteur ; Eloisa Helena A. Andrade, Auteur ; Léa Maria M. Carreira, Auteur . - 2006 . - pp. 60-63. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 18 N° 1 (Janvier-Fevrier 2006) . - pp. 60-63 Mots-clés : Duguetia  eximia  Duguetia  flagellaris  Duguetia  picnastera  Duguetia  riparia  Duguetia  trunciflora  Annonaceae  Essential  oil  composition  α-eudesmol  Spathulenol  Caryophyllene  oxide  α-pinene Résumé : The leaf and fine stems and the bark oils of Duguetia eximia, D. flagellaris, D. pycnastera, D. riparia and D. trunciflora were obtained by hydrodistillation and analyzed by GC and GC/MS. The main constituents found in the leaf and fine stems oil of D. eximia were α-eudesmol (80.3%) and spathulenol (5.0%). The leaf and fine stems oil of D. flagellaris was dominated by spathulenol (58.7%) and α-muurolol (6.2%); the bark oil was dominated by germacrene D (16.5%), cyperene (10.6%), α-muurolol (8.6%), humulene epoxide II (5.3%) and spathulenol (5.0%). The major components identified in the leaf and fine stems oil of D. pycnastera were spathulenol (52.2%), allo-aromadendrene (9.1%), germacrene D (7.1%) and elemol (5.1%). The leaf and fine stems oil of D. riparia contained spathulenol (46.5%), caryophyllene oxide (28.9%) and α-pinene (6.1%) as their main compounds. The leaf and fine stems oil of D. trunciflora was dominated by α-pinene (21.1%), bicyclogermacrene (17.6%), bulnesol (10.6%), spathulenol (10.5%), guaiol (8.1%), globulol (5.7%) and humulene epoxide II (5.0%); the bark oil was dominated by β-phellandrene (45.7%), guaiol (8.3%) and α-cadinol (7.4%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699386#.Ua75bNgYrOk

Essential oil variation in lippia glandulosa schauer / José Guilherme S. Maia 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. 676-680 Titre : Essential oil variation in lippia glandulosa schauer Type de document : texte imprimé Auteurs : José Guilherme S. Maia, Auteur ; Milton Helio L. Da Silva, Auteur ; Eloisa Helena A. Andrade, Auteur Année de publication : 2006 Article en page(s) : pp. 676-680 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Lippia  glandulosa  Verbenaceae  Volatile  composition  Thymol  and  β-caryophyllene  chemotypes Résumé : The oils of 14 samples of Lippia glandulosa collected in the “Lavrado” area, Roraima state, North Brazil, were obtained by hydrodistillation and analyzed by GC and GC/MS. Two chemical groups were characterized in the oils, one which was rich in thymol (46.3–78.1%), and another containing β-caryophyllene (17.3–59.4%) as the major component. In the first group the compounds p-cymene (5.1–7.2%) and β-caryophyllene (4.1–9.2%) have been associated to thymol in six of the analyzed oil samples. On the other hand, the second group showed variable association with (E)-nerolidol (0.7–23.6%), trans-α-bergamotene (0.2–19.3%), α-alaskene (3.4–16.0%), α-pinene (1.2–7.8%), α-hu-mulene (2.6–6.0%), caryophyllene oxide (1.9–6.0%) and linalool (0.9–5.0%), in the other eight oil samples, justifying the field observation concerning the plant scent variability at the same collection site and the chemical composition differentiation observed to L. glandulosa. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9699030#.UcLYpGF2_n4 [article] Essential oil variation in lippia glandulosa schauer [texte imprimé] / José Guilherme S. Maia, Auteur ; Milton Helio L. Da Silva, Auteur ; Eloisa Helena A. Andrade, Auteur . - 2006 . - pp. 676-680. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 17 N° 6 (Novembre-Décembre 2005) . - pp. 676-680 Mots-clés : Lippia  glandulosa  Verbenaceae  Volatile  composition  Thymol  and  β-caryophyllene  chemotypes Résumé : The oils of 14 samples of Lippia glandulosa collected in the “Lavrado” area, Roraima state, North Brazil, were obtained by hydrodistillation and analyzed by GC and GC/MS. Two chemical groups were characterized in the oils, one which was rich in thymol (46.3–78.1%), and another containing β-caryophyllene (17.3–59.4%) as the major component. In the first group the compounds p-cymene (5.1–7.2%) and β-caryophyllene (4.1–9.2%) have been associated to thymol in six of the analyzed oil samples. On the other hand, the second group showed variable association with (E)-nerolidol (0.7–23.6%), trans-α-bergamotene (0.2–19.3%), α-alaskene (3.4–16.0%), α-pinene (1.2–7.8%), α-hu-mulene (2.6–6.0%), caryophyllene oxide (1.9–6.0%) and linalool (0.9–5.0%), in the other eight oil samples, justifying the field observation concerning the plant scent variability at the same collection site and the chemical composition differentiation observed to L. glandulosa. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9699030#.UcLYpGF2_n4