Auteur Maria das Graças B. Zoghbi
Documents disponibles écrits par cet auteur (11)
Affiner la recherche
Article : texte imprimé
Maria das Graças B. Zoghbi, Auteur ; Eloisa Helena de A. Andrade, Auteur ; Jorge Oliveira, Auteur |The volatiles of Cyperus giganteus (Cyperaceae), cultivated in the state of Pará were obtained by hydrodistillation and analyzed by GC and GC/MS. The major components identified in the rhizome oil of C. giganteus were cyperotundone (25.9%) and c[...]
Article : texte imprimé
Jefferson Rocha de A. Silva, Auteur ; Maria das Graças B. Zoghbi, Auteur ; Angelo da C. Pinto, Auteur |The oleoresins of seven Protium species were extracted with hexane and the obtained extracts were studied by GC and GC/MS. A total of 38 compounds were identified in these extracts. The principal components were α-pinene, β-pinene, p-cymene, α[...]
Article : texte imprimé
Maria das Graças B. Zoghbi, Auteur ; Eloisa H. A. Andrade, Auteur ; Regina C. V. Martins-da-Silva, Auteur |The oleoresins of 12 trees of Copaifera reticulata growing wild in the States of Pará and Amapá were examined by GC-FID and GC/MS. The majority oleoresins from Pará possessed high amounts of β-bisabolene (18.4–42.4%) and trans-α-bergamotene (11[...]
Article : texte imprimé
Eloisa Helena A. Andrade, Auteur ; Maria das Graças B. Zoghbi, Auteur ; Ana Carla M. Silva, Auteur |The authors obtained the essential oil of the leaves and thin branches of Myrciaria tenella via hydrodistillation and analyzed by GC and GC/MS. The oil of M. tenella was found to be rich in sesquiterpenes, with a predominance of β-caryophyllene [...]
Article : texte imprimé
Osmar A. Lameira, Auteur ; Regina C. V. Martins-da-Silva, Auteur ; Maria das Graças B. Zoghbi, Auteur |The oleoresins of three trees of Copaifera duckei Dwyer were harvested from September 2003 at one-month intervals up to September 2004, and the volatiles examined by GC-FID and GC/MS. The highest oleoresin harvested from Sample A occurred at Oc[...]
Article : texte imprimé
Maria das Graças B. Zoghbi, Auteur ; Osmar A. Lameira, Auteur ; Elaine C. P. Oliveira, Auteur |The oleoresins from Copaifera martii were harvested from September 2003 at one-month intervals up to September 2004, from the same individual tree, and examined by GC/FID and GC/MS. The highest oleoresin per harvest occurred at January 2004 in t[...]
Article : texte imprimé
Eloisa Helena A. Andrade, Auteur ; Maria das Graças B. Zoghbi, Auteur |The essential oils of the leaves and stems of Piper glandulosissimum collected in the city of Belém (PA), were obtained by hydrodistillation and analyzed by GC and GC/MS. The major components identified in the oils of P. glandulosissimum are car[...]
Article : texte imprimé
Maria das Graças B. Zoghbi, Auteur ; Raimunda A. Pereira, Auteur ; Giselle do S. L. de Lima, Auteur |Essential oils of Mansoa standleyi collected at four municipalities of the State of Pará were obtained by hydrodistillation and analyzed by GC-FID and GC/MS. All samples analyzed showed a high content of sulfur compounds, among them diallyl dis[...]
Article : texte imprimé
Maria das Graças B. Zoghbi, Auteur ; Regina C. V. Martins-da-Silva, Auteur ; José Roberto Trigo, Auteur |The oleoresins of Copaifera paupera, C. piresii and C. pubiflora were examined by GC-FID and GC/MS. The oleoresins of C. paupera and C. piresii were characterized by a high percentage of α-copaene (42.5% and 45.5%), followed by β-caryophyllene [...]
Article : texte imprimé
Eloisa Helena A. Andrade, Auteur ; Léa Maria M. Carreira, Auteur ; Maria das Graças B. Zoghbi, Auteur |The volatiles of the leaves, stems and flowers of Otacanthus azureus were obtained by hydrodistillation and analyzed by GC and GC/MS. The oils of O. azureus were terpenoid in nature. Among the monoterpenes trans-pinocarveol was the major compone[...]
Article : texte imprimé
Maria das Graças B. Zoghbi, Auteur ; Eloisa Helena A. Andrade, Auteur ; Jorge Oliveira |The volatile constituents from the stems and rhizomes of Cyperus articulatus, cultivated in the state of Pará, Brazil, were obtained by hydrodistillation and analyzed by GC and GC/MS. The major components of these oils were α-pinene (0.7–12.9%),[...]
