Les Inscriptions à la Bibliothèque sont ouvertes en
ligne via le site: https://biblio.enp.edu.dz
Les Réinscriptions se font à :
• La Bibliothèque Annexe pour les étudiants en
2ème Année CPST
• La Bibliothèque Centrale pour les étudiants en Spécialités
A partir de cette page vous pouvez :
| Retourner au premier écran avec les recherches... |
Journal of essential oil research |
Dépouillements
Ajouter le résultat dans votre panierSweet basil essential oil composition: relationship between cultivar, foliar feeding with nitrogen and oil content / Renata Nurzyńska-Wierdak in The journal of essential oil research, Vol. 24 N° 3 (Juin 2012)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 217-227
Titre : Sweet basil essential oil composition: relationship between cultivar, foliar feeding with nitrogen and oil content Type de document : texte imprimé Auteurs : Renata Nurzyńska-Wierdak, Auteur Année de publication : 2012 Article en page(s) : pp. 217-227 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Ocimum basilicum L Sweet basil cultivars Urea application GC–MS GC–FID Linalool Geraniol 1,8-cineole Methyl chavicol Eugenol Epi-α-cadinol Résumé : The aromatic and curative properties of sweet basil (Ocimum basilicum L.) are mainly related to the contents and chemical composition of essential oil. This substance may undergo quantitative and qualitative changes under the influence of various factors, among others, the agrotechnical and environmental ones. The subject of the foregoing studies was determining the effect of foliar nitrogen application (0.5% urea solution) upon the contents and chemical composition of the essential oil of the herb from the plants of four sweet basil cultivars grown in an unheated polyethylene (PE) foil tunnel. The application of urea was performed four times, in 10-day intervals, starting from the third decade in May. The volatile oil was extracted from the dried material by herb distillation with water vapor. The sample of oils were analyzed by using gas chromatography–flame ionization detector (GC–FID) and GC/mass spectrometry (GC/MS). No significant effect of foliar nitrogen application upon the quantity of oil accumulated by basil plants was revealed. The predominant component of the essential oil from the examined basil cultivars was linalool, whose share ranged from 60.6% to 75.9%, depending on the cultivar and the applied nitrogen fertilization procedure. Nitrogen application generally contributed to the decrease in the contents of main basil volatile oil components. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676763 [article] Sweet basil essential oil composition: relationship between cultivar, foliar feeding with nitrogen and oil content [texte imprimé] / Renata Nurzyńska-Wierdak, Auteur . - 2012 . - pp. 217-227.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 217-227
Mots-clés : Ocimum basilicum L Sweet basil cultivars Urea application GC–MS GC–FID Linalool Geraniol 1,8-cineole Methyl chavicol Eugenol Epi-α-cadinol Résumé : The aromatic and curative properties of sweet basil (Ocimum basilicum L.) are mainly related to the contents and chemical composition of essential oil. This substance may undergo quantitative and qualitative changes under the influence of various factors, among others, the agrotechnical and environmental ones. The subject of the foregoing studies was determining the effect of foliar nitrogen application (0.5% urea solution) upon the contents and chemical composition of the essential oil of the herb from the plants of four sweet basil cultivars grown in an unheated polyethylene (PE) foil tunnel. The application of urea was performed four times, in 10-day intervals, starting from the third decade in May. The volatile oil was extracted from the dried material by herb distillation with water vapor. The sample of oils were analyzed by using gas chromatography–flame ionization detector (GC–FID) and GC/mass spectrometry (GC/MS). No significant effect of foliar nitrogen application upon the quantity of oil accumulated by basil plants was revealed. The predominant component of the essential oil from the examined basil cultivars was linalool, whose share ranged from 60.6% to 75.9%, depending on the cultivar and the applied nitrogen fertilization procedure. Nitrogen application generally contributed to the decrease in the contents of main basil volatile oil components. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676763
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 229-235
Titre : Artemisia arborescens L. : Essential oil composition and effects of plant growth stage in some genotypes from Sicily Type de document : texte imprimé Auteurs : Marcello Militello, Auteur ; Alessandra Carrubba, Auteur ; María Amparo Blázquez, Auteur Année de publication : 2012 Article en page(s) : pp. 229-235 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Artemisia arborescens L Essential oil Phenological stage Chamazulene β-thujone Camphor Germacrene D Résumé : Essential oils from aerial parts of several Artemisia arborescens L. populations, collected in five different localities of Sicily, were analyzed by gas chromatograph–flame ionization detector (GC–FID) and GC–mass spectrometry (GC–MS) in order to study the chemical composition and its variability due to phenological stage. Forty-three compounds, accounting for more than 92% of the oil, were identified. Monoterpene fraction with the exception of Petru population was higher than the sesquiterpene fraction. β-Thujone (20.5–55.9%), chamazulene (15.2–49.4%), camphor (1.3–10.7%) and germacrene D (2.3–3.4%) were the main compounds. Chemical composition was influenced by phenological stage, with an increase in the monoterpene fraction at flowering stage; both in flowering and vegetative stages, the main compounds were always the oxygenated monoterpene β-thujone and the sesquiterpene hydrocarbon chamazulene. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676764 [article] Artemisia arborescens L. : Essential oil composition and effects of plant growth stage in some genotypes from Sicily [texte imprimé] / Marcello Militello, Auteur ; Alessandra Carrubba, Auteur ; María Amparo Blázquez, Auteur . - 2012 . - pp. 229-235.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 229-235
Mots-clés : Artemisia arborescens L Essential oil Phenological stage Chamazulene β-thujone Camphor Germacrene D Résumé : Essential oils from aerial parts of several Artemisia arborescens L. populations, collected in five different localities of Sicily, were analyzed by gas chromatograph–flame ionization detector (GC–FID) and GC–mass spectrometry (GC–MS) in order to study the chemical composition and its variability due to phenological stage. Forty-three compounds, accounting for more than 92% of the oil, were identified. Monoterpene fraction with the exception of Petru population was higher than the sesquiterpene fraction. β-Thujone (20.5–55.9%), chamazulene (15.2–49.4%), camphor (1.3–10.7%) and germacrene D (2.3–3.4%) were the main compounds. Chemical composition was influenced by phenological stage, with an increase in the monoterpene fraction at flowering stage; both in flowering and vegetative stages, the main compounds were always the oxygenated monoterpene β-thujone and the sesquiterpene hydrocarbon chamazulene. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676764
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 237-240
Titre : Chemical composition and toxicity of the essential oil of Cayratia japonica against two grain storage insects Type de document : texte imprimé Auteurs : Zhi Long Liu, Auteur ; Kai Yang, Auteur ; Fan Huang, Auteur Année de publication : 2012 Article en page(s) : pp. 237-240 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Cayratia japonica Sitophilus zeamais Tribolium castaneum Contact toxicity Essential oil composition Résumé : During our screening program for new agrochemicals from Chinese medicinal herbs, essential oil of Cayratia japonica aerial parts was found to possess strong insecticidal activities against Sitophilus zeamais and Tribolium castaneum. A total of 37 components of the essential oil were identified by gas chromatography (GC) and GC–mass spectrometry (GC–MS). Linalool (19.4%), trans-α-ionene (11.4%), α-terpineol (7.9%), dihydroactinolide (7.8%) and geranial (5.8%) were the main components of the essential oil. The essential oil exhibited strong fumigant toxicity against S. zeamais and T. castaneum adults with LC50 values of 10.05 and 15.67 mg/L air, respectively. Cayratia japonica essential oil also possessed contact toxicity against S. zeamais and T. castaneum adults with LD50 values of 32.06 and 44.49 mg/adult, respectively. The essential oil C. japonica may have potential to be developed as a new natural fumigant/insecticide for the control of stored-product insects. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676765 [article] Chemical composition and toxicity of the essential oil of Cayratia japonica against two grain storage insects [texte imprimé] / Zhi Long Liu, Auteur ; Kai Yang, Auteur ; Fan Huang, Auteur . - 2012 . - pp. 237-240.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 237-240
Mots-clés : Cayratia japonica Sitophilus zeamais Tribolium castaneum Contact toxicity Essential oil composition Résumé : During our screening program for new agrochemicals from Chinese medicinal herbs, essential oil of Cayratia japonica aerial parts was found to possess strong insecticidal activities against Sitophilus zeamais and Tribolium castaneum. A total of 37 components of the essential oil were identified by gas chromatography (GC) and GC–mass spectrometry (GC–MS). Linalool (19.4%), trans-α-ionene (11.4%), α-terpineol (7.9%), dihydroactinolide (7.8%) and geranial (5.8%) were the main components of the essential oil. The essential oil exhibited strong fumigant toxicity against S. zeamais and T. castaneum adults with LC50 values of 10.05 and 15.67 mg/L air, respectively. Cayratia japonica essential oil also possessed contact toxicity against S. zeamais and T. castaneum adults with LD50 values of 32.06 and 44.49 mg/adult, respectively. The essential oil C. japonica may have potential to be developed as a new natural fumigant/insecticide for the control of stored-product insects. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676765
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 241-244
Titre : Antibacterial activity of high safrole contain essential oils from Piper xylosteoides (Kunth) Steudel Type de document : texte imprimé Auteurs : Jocinei Dognini, Auteur ; Emanuelle K. Meneghetti, Auteur ; Morgana N. Teske, Auteur Année de publication : 2012 Article en page(s) : pp. 241-244 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Piper xylosteoides Essential oil Safrole Antibacterial activity Résumé : In our continuous search for naturally occurring compounds of scientific and technological relevance, the chemical composition and antibacterial activity of the essential oils of two populations of Piper xylosteoides from Santa Catarina, Brazil, is described. Both oils showed a very high safrole concentration, being the highest value associated to the sample collected in Orleans (84.1%). As the second major compound, the monoterpene α-pinene was present with the highest concentration (15.3%) in the São Bonifácio sample. The antibacterial activity was examined towards both Gram-positive and Gram-negative bacteria. The oils showed weak activity against the bacteria tested. This species can be considered a new economically important natural source of the arylpropanoid safrole. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676768 [article] Antibacterial activity of high safrole contain essential oils from Piper xylosteoides (Kunth) Steudel [texte imprimé] / Jocinei Dognini, Auteur ; Emanuelle K. Meneghetti, Auteur ; Morgana N. Teske, Auteur . - 2012 . - pp. 241-244.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 241-244
Mots-clés : Piper xylosteoides Essential oil Safrole Antibacterial activity Résumé : In our continuous search for naturally occurring compounds of scientific and technological relevance, the chemical composition and antibacterial activity of the essential oils of two populations of Piper xylosteoides from Santa Catarina, Brazil, is described. Both oils showed a very high safrole concentration, being the highest value associated to the sample collected in Orleans (84.1%). As the second major compound, the monoterpene α-pinene was present with the highest concentration (15.3%) in the São Bonifácio sample. The antibacterial activity was examined towards both Gram-positive and Gram-negative bacteria. The oils showed weak activity against the bacteria tested. This species can be considered a new economically important natural source of the arylpropanoid safrole. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676768
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 245-251
Titre : Chemical characterization of rosewood (Aniba rosaeodora Ducke) leaf essential oil by comprehensive two-dimensional gas chromatography coupled with quadrupole mass spectrometry Type de document : texte imprimé Auteurs : Carlos H.V. Fidelis, Auteur ; Fabio Augusto, Auteur ; Paulo T.B. Sampaio, Auteur Année de publication : 2012 Article en page(s) : pp. 245-251 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Aniba rosaeodora Ducke Lauraceae Rosewood GC × GC–qMS Linalool Essential oil composition Résumé : The Amazonian tree Aniba rosaeodora Ducke, whose wood provides commercial essential oil for perfumery houses, is at risk of extinction and listed by CITES. An alternative source of this oil would be to trim leaves of young plants and steam distill them to obtain the essential oil. Four-year-old plant material could provide an oil that can both be an economical source and eventually a replacement for wood oil in perfumery. A characterization of the essential oil from these leaves has been obtained by comprehensive two-dimensional gas chromatography. The two-dimensional analytical technique was able to separate and identify about three times more compounds than is the case with conventional gas chromatography, leading to a more complete essential oil chemical characterization. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676770 [article] Chemical characterization of rosewood (Aniba rosaeodora Ducke) leaf essential oil by comprehensive two-dimensional gas chromatography coupled with quadrupole mass spectrometry [texte imprimé] / Carlos H.V. Fidelis, Auteur ; Fabio Augusto, Auteur ; Paulo T.B. Sampaio, Auteur . - 2012 . - pp. 245-251.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 245-251
Mots-clés : Aniba rosaeodora Ducke Lauraceae Rosewood GC × GC–qMS Linalool Essential oil composition Résumé : The Amazonian tree Aniba rosaeodora Ducke, whose wood provides commercial essential oil for perfumery houses, is at risk of extinction and listed by CITES. An alternative source of this oil would be to trim leaves of young plants and steam distill them to obtain the essential oil. Four-year-old plant material could provide an oil that can both be an economical source and eventually a replacement for wood oil in perfumery. A characterization of the essential oil from these leaves has been obtained by comprehensive two-dimensional gas chromatography. The two-dimensional analytical technique was able to separate and identify about three times more compounds than is the case with conventional gas chromatography, leading to a more complete essential oil chemical characterization. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676770
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 253-257
Titre : Composition of leaf and stem bark oils of Xylopia villosa Chipp Type de document : texte imprimé Auteurs : Thierry Acafou Yapi, Auteur ; Jean Brice Boti, Auteur ; Coffy Antoine Ahibo, Auteur Année de publication : 2012 Article en page(s) : pp. 253-257 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Xylopia villosa Leaf oil Stem bark oil Essential oil composition 13C NMR Côte d’Ivoire Résumé : Leaves (16 samples) and stem bark (four samples) of Xylopia villosa were collected in two forests of south-eastern Côte d’Ivoire. The chemical composition of essential oils was investigated by gas chromatography (GC; in combination with retention indices) and 13C nuclear magnetic resonance (NMR). Thirty-three compounds accounting for 85.9–95.9% of the oil have been identified. Xylopia villosa produces a monoterpene-rich essential oil, whose composition was dominated by sabinene or (Z)-β-ocimene, one or the other compound being the major component. One atypical leaf oil sample exhibited myrcene as major component. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676771 [article] Composition of leaf and stem bark oils of Xylopia villosa Chipp [texte imprimé] / Thierry Acafou Yapi, Auteur ; Jean Brice Boti, Auteur ; Coffy Antoine Ahibo, Auteur . - 2012 . - pp. 253-257.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 253-257
Mots-clés : Xylopia villosa Leaf oil Stem bark oil Essential oil composition 13C NMR Côte d’Ivoire Résumé : Leaves (16 samples) and stem bark (four samples) of Xylopia villosa were collected in two forests of south-eastern Côte d’Ivoire. The chemical composition of essential oils was investigated by gas chromatography (GC; in combination with retention indices) and 13C nuclear magnetic resonance (NMR). Thirty-three compounds accounting for 85.9–95.9% of the oil have been identified. Xylopia villosa produces a monoterpene-rich essential oil, whose composition was dominated by sabinene or (Z)-β-ocimene, one or the other compound being the major component. One atypical leaf oil sample exhibited myrcene as major component. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676771
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 259-263
Titre : Essential oil of Phellodendron japonicum Maxim Type de document : texte imprimé Auteurs : Anna Lis, Auteur ; Magdalena Jóźwicka, Auteur Année de publication : 2012 Article en page(s) : pp. 259-263 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Phellodendron japonicum Japanese cork tree Rutaceae Essential oil composition Myrcene Résumé : The essential oils from fruits, flowers and leaves of Phellodendron japonicum Maxim. were analyzed by gas chromatography (GC), GC/mass spectrometry (GC/MS) and 1H-nuclear magnetic resonance (NMR) spectroscopy. More than 80 compounds were identified. Myrcene (79.5–86.1%) and germacrene D (2.5–11.8%) were the main constituents in the fruit oil. The flower oil contained mainly myrcene (59.7%) and α-pinene (8.0%), whereas the leaf oil contained β-elemol (30.5%) and myrcene (21.2%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676773 [article] Essential oil of Phellodendron japonicum Maxim [texte imprimé] / Anna Lis, Auteur ; Magdalena Jóźwicka, Auteur . - 2012 . - pp. 259-263.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 259-263
Mots-clés : Phellodendron japonicum Japanese cork tree Rutaceae Essential oil composition Myrcene Résumé : The essential oils from fruits, flowers and leaves of Phellodendron japonicum Maxim. were analyzed by gas chromatography (GC), GC/mass spectrometry (GC/MS) and 1H-nuclear magnetic resonance (NMR) spectroscopy. More than 80 compounds were identified. Myrcene (79.5–86.1%) and germacrene D (2.5–11.8%) were the main constituents in the fruit oil. The flower oil contained mainly myrcene (59.7%) and α-pinene (8.0%), whereas the leaf oil contained β-elemol (30.5%) and myrcene (21.2%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676773
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 265-272
Titre : Essential oils of Mentha species from Marmara region of Turkey Type de document : texte imprimé Auteurs : K. H. C. Başer, Auteur ; M. Kürkçüoğlu, Auteur ; B. Demirci, Auteur Année de publication : 2012 Article en page(s) : pp. 265-272 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Mentha pulegium Mentha aquatica Mentha × dumetorum Mentha spicata Mentha suaveolens Mentha longifolia Mentha × rotundifolia Mentha × villosa-nervata Lamiaceae Essential oil composition Résumé : The genus Mentha L. (Lamiaceae) is represented in the world by 62 taxa including 18 species and 11 hybrids. In Turkey, 15 taxa exist. In the course of the present work, 90 samples belonging to 11 Mentha taxa collected from the Marmara region of Turkey in north western Turkey were hydrodistilled to obtain essential oils, which were then subjected to gas chromatographic (GC) and GC/mass spectrometric (GC/MS) analyses. Fifty-six percent of the samples contained 3-oxo-1,2-epoxy type compounds (piperitenone oxide, cis- and trans-piperitone oxide) as the main constituents in their oils, whereas 25% contained 3-oxo compounds (menthone, isomenthone, pulegone, menthofuran, piperitone, piperitenone and isopulegol). Ten percent of the samples comprised 2-oxo compounds such as carvone, cis- and trans-dihydrocarvone; 2% contained 1,8-cineole and 1% contained trans-sabinene hydrate as the main constituent in the oils; 5% belonged to an unknown category found in the five oils of Mentha longifolia. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676775 [article] Essential oils of Mentha species from Marmara region of Turkey [texte imprimé] / K. H. C. Başer, Auteur ; M. Kürkçüoğlu, Auteur ; B. Demirci, Auteur . - 2012 . - pp. 265-272.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 265-272
Mots-clés : Mentha pulegium Mentha aquatica Mentha × dumetorum Mentha spicata Mentha suaveolens Mentha longifolia Mentha × rotundifolia Mentha × villosa-nervata Lamiaceae Essential oil composition Résumé : The genus Mentha L. (Lamiaceae) is represented in the world by 62 taxa including 18 species and 11 hybrids. In Turkey, 15 taxa exist. In the course of the present work, 90 samples belonging to 11 Mentha taxa collected from the Marmara region of Turkey in north western Turkey were hydrodistilled to obtain essential oils, which were then subjected to gas chromatographic (GC) and GC/mass spectrometric (GC/MS) analyses. Fifty-six percent of the samples contained 3-oxo-1,2-epoxy type compounds (piperitenone oxide, cis- and trans-piperitone oxide) as the main constituents in their oils, whereas 25% contained 3-oxo compounds (menthone, isomenthone, pulegone, menthofuran, piperitone, piperitenone and isopulegol). Ten percent of the samples comprised 2-oxo compounds such as carvone, cis- and trans-dihydrocarvone; 2% contained 1,8-cineole and 1% contained trans-sabinene hydrate as the main constituent in the oils; 5% belonged to an unknown category found in the five oils of Mentha longifolia. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676775
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 273-278
Titre : An examination of the leaf essential oils of the endemic Melaleuca (Myrtaceae) species of New Caledonia Type de document : texte imprimé Auteurs : Edouard Hnawia, Auteur ; Joseph J. Brophy, Auteur ; Lyn A. Craven, Auteur Année de publication : 2012 Article en page(s) : pp. 273-278 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Melaleuca brevisepala Melaleuca brongniartii Melaleuca buseana Melaleuca dawsonii Melaleuca gnidioides Melaleuca pancheri Melaleuca sphaerodendra var. microphylla Melaleuca quinquenervia β-caryophyllene α-pinene Limonene α-phellandrene γ-terpinene β-pinene Spathulenol Essential oils Résumé : The leaf essential oils of the seven endemic New Caledonian species of the genus Melaleuca have been examined. Melaleuca sphaerodendra var. microphylla and Melaleuca brevisepala produced oils in which β-caryophyllene (28.8% and 26.8% respectively) was the principal component. α-Pinene (24.8%) and β-caryophyllene (14.1%) were the principal compounds detected in the leaf oil of Melaleuca pancheri. Melaleuca brongniartii produced an oil in which the principal monoterpenes were α-pinene (23.3%), β-pinene (10.3%) and limonene (19.8%). γ-Terpinene (15.2%), p-cymene (12.8%) and terpinolene (17.5%) were the major components in the leaf essential oil of Melaleuca buseana, whereas the leaf oil of Melaleuca dawsonii contained α-pinene (12.8%) and α-phellandrene (10.3%) as principal components. In Melaleuca gnidioides α-pinene (23.6%), β-pinene (13.6%) and spathulenol (14.7%) were the major components. All of these oils differed from the leaf oil of Melaleuca quinquenervia, an indigenous New Caledonian species also found in Australia and New Guinea. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676776 [article] An examination of the leaf essential oils of the endemic Melaleuca (Myrtaceae) species of New Caledonia [texte imprimé] / Edouard Hnawia, Auteur ; Joseph J. Brophy, Auteur ; Lyn A. Craven, Auteur . - 2012 . - pp. 273-278.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 273-278
Mots-clés : Melaleuca brevisepala Melaleuca brongniartii Melaleuca buseana Melaleuca dawsonii Melaleuca gnidioides Melaleuca pancheri Melaleuca sphaerodendra var. microphylla Melaleuca quinquenervia β-caryophyllene α-pinene Limonene α-phellandrene γ-terpinene β-pinene Spathulenol Essential oils Résumé : The leaf essential oils of the seven endemic New Caledonian species of the genus Melaleuca have been examined. Melaleuca sphaerodendra var. microphylla and Melaleuca brevisepala produced oils in which β-caryophyllene (28.8% and 26.8% respectively) was the principal component. α-Pinene (24.8%) and β-caryophyllene (14.1%) were the principal compounds detected in the leaf oil of Melaleuca pancheri. Melaleuca brongniartii produced an oil in which the principal monoterpenes were α-pinene (23.3%), β-pinene (10.3%) and limonene (19.8%). γ-Terpinene (15.2%), p-cymene (12.8%) and terpinolene (17.5%) were the major components in the leaf essential oil of Melaleuca buseana, whereas the leaf oil of Melaleuca dawsonii contained α-pinene (12.8%) and α-phellandrene (10.3%) as principal components. In Melaleuca gnidioides α-pinene (23.6%), β-pinene (13.6%) and spathulenol (14.7%) were the major components. All of these oils differed from the leaf oil of Melaleuca quinquenervia, an indigenous New Caledonian species also found in Australia and New Guinea. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676776
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 279-288
Titre : Acaricidal activity of 31 essential oils extracted from plants collected in Tunisia Type de document : texte imprimé Auteurs : Sabrine Attia, Auteur ; Kaouthar L. Grissa, Auteur ; Zeineb G. Ghrabi, Auteur Année de publication : 2012 Article en page(s) : pp. 279-288 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Tetranychus urticae Acaricidal activity Essential oils Distillates GC–MS Fast GC–FID Résumé : The two-spotted spider mite Tetranychus urticae Koch is a worldwide pest, feeding on a large variety of plant families. As its resistance to acaricides spreads rapidly, it is crucial to develop new biological control tactics to manage its populations. In this respect, essential oils may be a good alternative, as they are currently considered minimum-risk pesticides. In this paper, we conducted a series of laboratory experiments to determine the susceptibility of adult females to 31 essential oils extracted from plants collected from Tunisia and compare it with the results obtained with two synthetic acaricides (spirodiclofen and fenbutatin oxide). Details of the essential oil yield of these plants were also recorded. A maximum yield of 0.5% was obtained. Laboratory bioassay indicated that the development of the tetranychid mite population was significantly affected by the use of Deverra scoparia, Haplophyllum tuberculatum, Chrysanthemum coronarium and Mentha pulegium plant extracts that killed 97%, 93%, 93% and 91% of T. urticae, respectively. The chemical composition of the most effective extracts were characterized by gas chromatography–mass spectrometry (GC–MS) and fast GC–flame ionization detector (FID). The evaluation of the potential of biologically active plant volatiles against T. urticae might provide a new approach to the development of natural acaricides to be used both in biological and integrated pest management strategies for controlling two-spotted spider mites. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676777 [article] Acaricidal activity of 31 essential oils extracted from plants collected in Tunisia [texte imprimé] / Sabrine Attia, Auteur ; Kaouthar L. Grissa, Auteur ; Zeineb G. Ghrabi, Auteur . - 2012 . - pp. 279-288.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 279-288
Mots-clés : Tetranychus urticae Acaricidal activity Essential oils Distillates GC–MS Fast GC–FID Résumé : The two-spotted spider mite Tetranychus urticae Koch is a worldwide pest, feeding on a large variety of plant families. As its resistance to acaricides spreads rapidly, it is crucial to develop new biological control tactics to manage its populations. In this respect, essential oils may be a good alternative, as they are currently considered minimum-risk pesticides. In this paper, we conducted a series of laboratory experiments to determine the susceptibility of adult females to 31 essential oils extracted from plants collected from Tunisia and compare it with the results obtained with two synthetic acaricides (spirodiclofen and fenbutatin oxide). Details of the essential oil yield of these plants were also recorded. A maximum yield of 0.5% was obtained. Laboratory bioassay indicated that the development of the tetranychid mite population was significantly affected by the use of Deverra scoparia, Haplophyllum tuberculatum, Chrysanthemum coronarium and Mentha pulegium plant extracts that killed 97%, 93%, 93% and 91% of T. urticae, respectively. The chemical composition of the most effective extracts were characterized by gas chromatography–mass spectrometry (GC–MS) and fast GC–flame ionization detector (FID). The evaluation of the potential of biologically active plant volatiles against T. urticae might provide a new approach to the development of natural acaricides to be used both in biological and integrated pest management strategies for controlling two-spotted spider mites. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676777
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 289-297
Titre : Variation in the essential oil composition of Eremostachys laciniata from Jordan at different flowering stages Type de document : texte imprimé Auteurs : Hala I. Al-Jaber, Auteur ; Mahmoud A. Al-Qudah, Auteur ; Lina M. Barhoumi, Auteur Année de publication : 2012 Article en page(s) : pp. 289-297 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Eremostachys laciniata Lamiaceae Essential oil composition Limonene GC–MS Monoterpene hydrocarbons Terpenoids content variation Résumé : Fresh aerial parts of Eremostachys laciniata Bunge growing wild in Jordan (Lamiaceae) were collected at different flowering stages. The essential oil contents of the fresh and the air-dried plants at the flowering stage were analyzed using gas chromatography–mass spectrometry (GC–MS). Results obtained indicated variability in the terpenoid content at the different flowering stages. Monoterpene hydrocarbons were the main group of all terpenoids during the pre-flowering, fresh flowering and air-dried-flowering stages (12.1%, 24.3% and 16.0%, respectively) and reached a minimum value at the post-flowering stage (2.5%) with limonene being the major compound in this fraction at all stages. Sesquiterpene hydrocarbons reached a maximum level at the fresh flowering stage (10.0%) with α-copaene (3.0%) as the the major component during this stage. Oxygenated monoterpenes were detected in highest concentration after air-drying (14.4%), whereas the oxygenated sesquiterpene content reached 5.5% at the post-flowering stage. Linear hydrocarbons and their derivatives were the main contributors to the essential oil of E. laciniata during the different stages reaching a maximum level of 80.5% at the post-flowering stage. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676799 [article] Variation in the essential oil composition of Eremostachys laciniata from Jordan at different flowering stages [texte imprimé] / Hala I. Al-Jaber, Auteur ; Mahmoud A. Al-Qudah, Auteur ; Lina M. Barhoumi, Auteur . - 2012 . - pp. 289-297.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 289-297
Mots-clés : Eremostachys laciniata Lamiaceae Essential oil composition Limonene GC–MS Monoterpene hydrocarbons Terpenoids content variation Résumé : Fresh aerial parts of Eremostachys laciniata Bunge growing wild in Jordan (Lamiaceae) were collected at different flowering stages. The essential oil contents of the fresh and the air-dried plants at the flowering stage were analyzed using gas chromatography–mass spectrometry (GC–MS). Results obtained indicated variability in the terpenoid content at the different flowering stages. Monoterpene hydrocarbons were the main group of all terpenoids during the pre-flowering, fresh flowering and air-dried-flowering stages (12.1%, 24.3% and 16.0%, respectively) and reached a minimum value at the post-flowering stage (2.5%) with limonene being the major compound in this fraction at all stages. Sesquiterpene hydrocarbons reached a maximum level at the fresh flowering stage (10.0%) with α-copaene (3.0%) as the the major component during this stage. Oxygenated monoterpenes were detected in highest concentration after air-drying (14.4%), whereas the oxygenated sesquiterpene content reached 5.5% at the post-flowering stage. Linear hydrocarbons and their derivatives were the main contributors to the essential oil of E. laciniata during the different stages reaching a maximum level of 80.5% at the post-flowering stage. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676799
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 299-304
Titre : Phytochemical investigation of the essential oil from the ‘resurrection plant’ Myrothamnus moschatus (Baillon) Niedenzu endemic to Madagasca Type de document : texte imprimé Auteurs : Philippe Rasoanaivo, Auteur ; Ermenegilde Ralaibia, Auteur ; Filippo Maggi, Auteur Année de publication : 2012 Article en page(s) : pp. 299-304 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Myrothamnus moschatus Myrothamnaceae Essential oil composition GC/FID and GC/MS Trans-pinocarveol Pinocarvone α-pinene Résumé : The composition of the essential oil hydrodistilled from the aerial parts of the ‘resurrection plant’ Myrothamnus moschatus (Baillon) Niedenzu endemic to Madagascar was investigated for the first time by gas chromatography (GC/flame ionization detector and GC/mass spectrometry). Forty components were identified in the oil, representing 98.2–98.6% of the total composition. The oil composition was dominated by oxygenated monoterpenes (73.5–75.0%), with trans-pinocarveol (35.6–36.3%) and pinocarvone (19.8–20.0%) as the most representative. Other components occurring in significant amounts were β-selinene (8.5%) and perillyl acetate (6.0–12.7%). No significant differences were detected in the major volatiles between the two different biological forms (flowering period and dry season) in which the plant naturally occurs. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676801 [article] Phytochemical investigation of the essential oil from the ‘resurrection plant’ Myrothamnus moschatus (Baillon) Niedenzu endemic to Madagasca [texte imprimé] / Philippe Rasoanaivo, Auteur ; Ermenegilde Ralaibia, Auteur ; Filippo Maggi, Auteur . - 2012 . - pp. 299-304.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 299-304
Mots-clés : Myrothamnus moschatus Myrothamnaceae Essential oil composition GC/FID and GC/MS Trans-pinocarveol Pinocarvone α-pinene Résumé : The composition of the essential oil hydrodistilled from the aerial parts of the ‘resurrection plant’ Myrothamnus moschatus (Baillon) Niedenzu endemic to Madagascar was investigated for the first time by gas chromatography (GC/flame ionization detector and GC/mass spectrometry). Forty components were identified in the oil, representing 98.2–98.6% of the total composition. The oil composition was dominated by oxygenated monoterpenes (73.5–75.0%), with trans-pinocarveol (35.6–36.3%) and pinocarvone (19.8–20.0%) as the most representative. Other components occurring in significant amounts were β-selinene (8.5%) and perillyl acetate (6.0–12.7%). No significant differences were detected in the major volatiles between the two different biological forms (flowering period and dry season) in which the plant naturally occurs. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676801
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 305-313
Titre : Chemical composition and antibacterial activities of essential oils from Zingiber spectabile Griff Type de document : texte imprimé Auteurs : Y. Sivasothy, Auteur ; K. Awang, Auteur ; H. Ibrahim, Auteur Année de publication : 2012 Article en page(s) : pp. 305-313 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Zingiber spectabile Griff Zingiberaceae Essential oil composition Antibacterial activity Zerumbone β-caryophyllene β-elemene Résumé : The essential oils of the leaves and rhizomes of Zingiber spectabile Griff. were analyzed by capillary gas chromatography (GC) and GC–mass spectrometry (GC–MS) following the isolation by hydrodistillation. In total, 80 compounds were identified in its leaf and rhizome oils. Both oils were sesquiterpenic in nature but with distinctly different odors. The most abundant components in the leaf oil were β-caryophyllene (21.3%) and β-elemene (12.5%), whereas the rhizomes yielded an oil rich in zerumbone (59.1%). The antibacterial activities of both oils against multidrug-resistant strains and food-borne pathogens were evaluated by the disc diffusion assay and by determining their minimum inhibitory concentration (MIC) values. The leaf oil was inactive against all tested microorganisms, whereas the rhizome oil exhibited weak activity against Escherichia coli, Salmonella enteritidis, Salmonella typhi, Salmonella typhimurium, Shigella flexneri, Klebsiella pneumoniae, Pseudomonas aeruginosa and methicillin-resistant Staphylococcus aureus (MRSA). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676803 [article] Chemical composition and antibacterial activities of essential oils from Zingiber spectabile Griff [texte imprimé] / Y. Sivasothy, Auteur ; K. Awang, Auteur ; H. Ibrahim, Auteur . - 2012 . - pp. 305-313.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 305-313
Mots-clés : Zingiber spectabile Griff Zingiberaceae Essential oil composition Antibacterial activity Zerumbone β-caryophyllene β-elemene Résumé : The essential oils of the leaves and rhizomes of Zingiber spectabile Griff. were analyzed by capillary gas chromatography (GC) and GC–mass spectrometry (GC–MS) following the isolation by hydrodistillation. In total, 80 compounds were identified in its leaf and rhizome oils. Both oils were sesquiterpenic in nature but with distinctly different odors. The most abundant components in the leaf oil were β-caryophyllene (21.3%) and β-elemene (12.5%), whereas the rhizomes yielded an oil rich in zerumbone (59.1%). The antibacterial activities of both oils against multidrug-resistant strains and food-borne pathogens were evaluated by the disc diffusion assay and by determining their minimum inhibitory concentration (MIC) values. The leaf oil was inactive against all tested microorganisms, whereas the rhizome oil exhibited weak activity against Escherichia coli, Salmonella enteritidis, Salmonella typhi, Salmonella typhimurium, Shigella flexneri, Klebsiella pneumoniae, Pseudomonas aeruginosa and methicillin-resistant Staphylococcus aureus (MRSA). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.676803
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 315-320
Titre : Comparison of headspace analysis of volatile constituents with GCMS analysis of hydrodistilled and supercritical fluid extracted oil of Capillipedium parviflorum Type de document : texte imprimé Auteurs : Rikki Saini, Auteur ; Vikas Jaitak, Auteur ; Shailja Guleria, Auteur Année de publication : 2012 Article en page(s) : pp. 315-320 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Capillipedium parviflorum Poaceae Sc-CO2 Hydrodistillation Headspace analysis Comparative evaluation Résumé : Volatile constituents of the aerial parts of Capillipedium parviflorum were studied by two different extraction procedures, hydrodistillation (HD), supercritical CO2 extraction (Sc-CO2) and compared with headspace analysis (HS). Sc-CO2 extraction was carried out using nine differential optimization extractions (DOX) at different temperatures (°C) and pressures (MPa), i.e. 35/9, 60/9, 85/9, 35/17, 60/17, 85/17, 35/25, 60/25 and 85/25, to assess the influence on the yield and composition of volatile constituents. In DOX experiments, oil yields varied between 0.01–0.18% and maximum yield (0.18%) was obtained using temperatures and pressures 35/17 and 85/25. The oil is characterized by distinctive presence of very high content of non-terpenes (90.7%) identified in HD oil, 84.0% in Sc-CO2 oil and 92.5% in HS analysis. Monoterpenes were represented in low concentrations in HD oil and were totally absent in Sc-CO2 as well as in HS analysis. Very little variability was observed in the oxygenated monoterpenes in both Sc-CO2 and HD oil representing a low percentage of constituents. Sesquiterpene hydrocarbons were represented between 1.5% and 3.1% in Sc-CO2 extraction, which was higher in comparison with HD and HS techniques. Oxygenated sesquiterpenes were represented in higher percentage in Sc-CO2 than in HD oil and HS analysis. Variability among the major constituents of 4-nonanone, 4-nonanol, 4-undecanone and 4-undecanol was observed in Sc-CO2 extraction carried out under varied temperatures and pressures. Their percentage also varied in HD and HS analysis. 4-Nonanone (2.5%, 60/9 in Sc-CO2; 6.4% in HD and 4.3% in HS), 4-nonanol (21.5% in Sc-CO2, 31.7% in HD and 29.5% in HS), 4-undecanone (33.3%, 85/9 in Sc-CO2; 35.3% in HD and 44.5% in HS) and 4-undecanol (16.5%, 84/17, 60/25 in Sc-CO2; 14.6% in HD and 10.3% in HS) dominated the volatile constituents. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.677141 [article] Comparison of headspace analysis of volatile constituents with GCMS analysis of hydrodistilled and supercritical fluid extracted oil of Capillipedium parviflorum [texte imprimé] / Rikki Saini, Auteur ; Vikas Jaitak, Auteur ; Shailja Guleria, Auteur . - 2012 . - pp. 315-320.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 3 (Juin 2012) . - pp. 315-320
Mots-clés : Capillipedium parviflorum Poaceae Sc-CO2 Hydrodistillation Headspace analysis Comparative evaluation Résumé : Volatile constituents of the aerial parts of Capillipedium parviflorum were studied by two different extraction procedures, hydrodistillation (HD), supercritical CO2 extraction (Sc-CO2) and compared with headspace analysis (HS). Sc-CO2 extraction was carried out using nine differential optimization extractions (DOX) at different temperatures (°C) and pressures (MPa), i.e. 35/9, 60/9, 85/9, 35/17, 60/17, 85/17, 35/25, 60/25 and 85/25, to assess the influence on the yield and composition of volatile constituents. In DOX experiments, oil yields varied between 0.01–0.18% and maximum yield (0.18%) was obtained using temperatures and pressures 35/17 and 85/25. The oil is characterized by distinctive presence of very high content of non-terpenes (90.7%) identified in HD oil, 84.0% in Sc-CO2 oil and 92.5% in HS analysis. Monoterpenes were represented in low concentrations in HD oil and were totally absent in Sc-CO2 as well as in HS analysis. Very little variability was observed in the oxygenated monoterpenes in both Sc-CO2 and HD oil representing a low percentage of constituents. Sesquiterpene hydrocarbons were represented between 1.5% and 3.1% in Sc-CO2 extraction, which was higher in comparison with HD and HS techniques. Oxygenated sesquiterpenes were represented in higher percentage in Sc-CO2 than in HD oil and HS analysis. Variability among the major constituents of 4-nonanone, 4-nonanol, 4-undecanone and 4-undecanol was observed in Sc-CO2 extraction carried out under varied temperatures and pressures. Their percentage also varied in HD and HS analysis. 4-Nonanone (2.5%, 60/9 in Sc-CO2; 6.4% in HD and 4.3% in HS), 4-nonanol (21.5% in Sc-CO2, 31.7% in HD and 29.5% in HS), 4-undecanone (33.3%, 85/9 in Sc-CO2; 35.3% in HD and 44.5% in HS) and 4-undecanol (16.5%, 84/17, 60/25 in Sc-CO2; 14.6% in HD and 10.3% in HS) dominated the volatile constituents. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.677141
Exemplaires
| Code-barres | Cote | Support | Localisation | Section | Disponibilité |
|---|---|---|---|---|---|
| aucun exemplaire | |||||
