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Détail de l'auteur
Auteur Vasu Dev
Documents disponibles écrits par cet auteur
Affiner la rechercheCalifornia lomatiums, part VI. composition of the essential oils of lomatium foeniculaceum ssp. fimbriatu / Philip S. Beauchamp in The journal of essential oil research, Vol. 18 N° 6 (Novembre-Décembre 2006)
[article]
in The journal of essential oil research > Vol. 18 N° 6 (Novembre-Décembre 2006) . - pp. 666-669
Titre : California lomatiums, part VI. composition of the essential oils of lomatium foeniculaceum ssp. fimbriatu Type de document : texte imprimé Auteurs : Philip S. Beauchamp, Auteur ; Barbara C. Dev, Auteur ; Vasu Dev, Auteur Année de publication : 2006 Article en page(s) : pp. 666-669 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Lomatium foeniculaceum ssps. fimbriatum Apiaceae Essential oil composition Myrcene β-phellandrene Limonene (E)-β-ocimene Germacrene D (Z)-ligustilide (Z)-falcarinol Résumé : The fruit essential oil of Lomatium foeniculaceum ssp. fmbriatum collected from the Inyo National Forest in California contained myrcene (24.5%), β-phellandrene/limonene (12.9%), germacrene D (13.9%), (E)-β-ocimene (10.4%), and (Z)-ligustilide (9.8%) as the major components. Germacrene D and (Z)-ligustilide also constituted the major components of the stem and leaf oil. (Z)-Falcarinol (38.1%) was the major component of the root essential oil. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699199#.UXKupUqC5mM [article] California lomatiums, part VI. composition of the essential oils of lomatium foeniculaceum ssp. fimbriatu [texte imprimé] / Philip S. Beauchamp, Auteur ; Barbara C. Dev, Auteur ; Vasu Dev, Auteur . - 2006 . - pp. 666-669.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 18 N° 6 (Novembre-Décembre 2006) . - pp. 666-669
Mots-clés : Lomatium foeniculaceum ssps. fimbriatum Apiaceae Essential oil composition Myrcene β-phellandrene Limonene (E)-β-ocimene Germacrene D (Z)-ligustilide (Z)-falcarinol Résumé : The fruit essential oil of Lomatium foeniculaceum ssp. fmbriatum collected from the Inyo National Forest in California contained myrcene (24.5%), β-phellandrene/limonene (12.9%), germacrene D (13.9%), (E)-β-ocimene (10.4%), and (Z)-ligustilide (9.8%) as the major components. Germacrene D and (Z)-ligustilide also constituted the major components of the stem and leaf oil. (Z)-Falcarinol (38.1%) was the major component of the root essential oil. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699199#.UXKupUqC5mM California lomatiums, part VII. analysis of the essential oils of lomatium nevadense (Watson) J. coulter et rose var. parishii (J. Coulter et Rose) jepson / Philip S. Beauchamp in The journal of essential oil research, Vol. 19 N°2 (Mars-Avril 2007)
[article]
in The journal of essential oil research > Vol. 19 N°2 (Mars-Avril 2007) . - pp. 117-124
Titre : California lomatiums, part VII. analysis of the essential oils of lomatium nevadense (Watson) J. coulter et rose var. parishii (J. Coulter et Rose) jepson : California Lomatiums, Part VII. Analysis of the Essential OIsolation of trans-dauc-8-en-11-ol, a new sesquiterpene alcohol and naturally occurring 2′,3′,3′-trimethyl-2′,3′-dihydroangelicin Type de document : texte imprimé Auteurs : Philip S. Beauchamp, Auteur ; Barbara C. Dev, Auteur ; Vasu Dev, Auteur Année de publication : 2007 Article en page(s) : pp. 117-124 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Lomatium nevadense Apiaceae Essential oil composition β-caryophyllene Germacrene D Bicyclogermacrene Trans-dauc-8-en-11-ol 2′,3′,3′-trimethyl-2′,3′-dihydroangelicin (Z)-falcarinol Résumé : The essential oil from the fruits of Lomatium nevadense var. parishii showed β-phellandrene/limonene, (Z)-β-ocimene, (E)-β-ocimene, γ-terpenene, β-caryophyllene, germacrene D, bicyclogermacrene, and (E)-sesquilavandulol to constitute more than 3% each of the oil. With the addition of (E)-2-hexenal, (Z)-3-hexenol and palmitic acid, the stem and leaf oil had similar composition. A new sesquiterpene alcohol, trans-dauc-8-en-11-ol along with naturally occurring 2′,3′,3′-trimethyl-2′,3′-dihydroangelicin were isolated. (Z)-Falcarinol made up 48.5% of the root oil. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699243 [article] California lomatiums, part VII. analysis of the essential oils of lomatium nevadense (Watson) J. coulter et rose var. parishii (J. Coulter et Rose) jepson : California Lomatiums, Part VII. Analysis of the Essential OIsolation of trans-dauc-8-en-11-ol, a new sesquiterpene alcohol and naturally occurring 2′,3′,3′-trimethyl-2′,3′-dihydroangelicin [texte imprimé] / Philip S. Beauchamp, Auteur ; Barbara C. Dev, Auteur ; Vasu Dev, Auteur . - 2007 . - pp. 117-124.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 19 N°2 (Mars-Avril 2007) . - pp. 117-124
Mots-clés : Lomatium nevadense Apiaceae Essential oil composition β-caryophyllene Germacrene D Bicyclogermacrene Trans-dauc-8-en-11-ol 2′,3′,3′-trimethyl-2′,3′-dihydroangelicin (Z)-falcarinol Résumé : The essential oil from the fruits of Lomatium nevadense var. parishii showed β-phellandrene/limonene, (Z)-β-ocimene, (E)-β-ocimene, γ-terpenene, β-caryophyllene, germacrene D, bicyclogermacrene, and (E)-sesquilavandulol to constitute more than 3% each of the oil. With the addition of (E)-2-hexenal, (Z)-3-hexenol and palmitic acid, the stem and leaf oil had similar composition. A new sesquiterpene alcohol, trans-dauc-8-en-11-ol along with naturally occurring 2′,3′,3′-trimethyl-2′,3′-dihydroangelicin were isolated. (Z)-Falcarinol made up 48.5% of the root oil. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699243 Lomatium grayi and indra swallowtail butterfly / Vasu Dev in The journal of essential oil research, Vol. 19 N°3 (Mai/Juin 2007)
[article]
in The journal of essential oil research > Vol. 19 N°3 (Mai/Juin 2007) . - pp. 244-248
Titre : Lomatium grayi and indra swallowtail butterfly : Composition of the essential oils of three varieties of lomatium grayi (J. M. Coult et Rose) J. M. coult et rose. Type de document : texte imprimé Auteurs : Vasu Dev, Auteur ; Bill Ly, Auteur ; Art E. Miranda, Auteur Année de publication : 2007 Article en page(s) : pp. 244-248 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Indra Swallowtail butterfly Papilio indra Lomatium grayi var. grayi Lomatium grayi var. depauperatum Lomatium grayi (new variety) Apiaceae Essential oil composition (Z)-β-ocimene (E)-β-ocimene β-phellandrene Limonene (Z)βligustilide Senkyunolide Résumé : The female Indra Swallowtail butterfly lays eggs on a number of species of the genus Lomatium in the Apiaceae family The essential oils of three varieties of Lomatium grayi; L. grayi. var. grayi, L. grayi var. depauperatum and L. grayi. var. (undescribed) have been analyzed. Among the major components, L. grayi var. grayi shows myrcene (8.4%), β-phellandrene/limonene (27.2%), γ-terpinene (10.4%), and senkyunolide (24.4%). L. grayi var. depauperatum shows myrcene (8.1%), p-cymene (4.3%), β-phellandrene/limonene (20.8%), (Z)-β- and (E)-β–ocimene (23.6%), γ-terpinene (4.4%), germacrene D (4.6%), senkyunolide (4.7%), and (Z)-ligustilide (6.7%). L. grayi (new varity) shows β-phellandrene/limonene (17.7%), γ-terpinene (16.1%), and senkyunolide (44.0%). These observations contrast signifcantly with the reported composition of L. grayi. Only L. grayi var. depauperatum and L. grayi (new variety) attract the butterfly. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699270#.UWq0lkqC5mM [article] Lomatium grayi and indra swallowtail butterfly : Composition of the essential oils of three varieties of lomatium grayi (J. M. Coult et Rose) J. M. coult et rose. [texte imprimé] / Vasu Dev, Auteur ; Bill Ly, Auteur ; Art E. Miranda, Auteur . - 2007 . - pp. 244-248.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 19 N°3 (Mai/Juin 2007) . - pp. 244-248
Mots-clés : Indra Swallowtail butterfly Papilio indra Lomatium grayi var. grayi Lomatium grayi var. depauperatum Lomatium grayi (new variety) Apiaceae Essential oil composition (Z)-β-ocimene (E)-β-ocimene β-phellandrene Limonene (Z)βligustilide Senkyunolide Résumé : The female Indra Swallowtail butterfly lays eggs on a number of species of the genus Lomatium in the Apiaceae family The essential oils of three varieties of Lomatium grayi; L. grayi. var. grayi, L. grayi var. depauperatum and L. grayi. var. (undescribed) have been analyzed. Among the major components, L. grayi var. grayi shows myrcene (8.4%), β-phellandrene/limonene (27.2%), γ-terpinene (10.4%), and senkyunolide (24.4%). L. grayi var. depauperatum shows myrcene (8.1%), p-cymene (4.3%), β-phellandrene/limonene (20.8%), (Z)-β- and (E)-β–ocimene (23.6%), γ-terpinene (4.4%), germacrene D (4.6%), senkyunolide (4.7%), and (Z)-ligustilide (6.7%). L. grayi (new varity) shows β-phellandrene/limonene (17.7%), γ-terpinene (16.1%), and senkyunolide (44.0%). These observations contrast signifcantly with the reported composition of L. grayi. Only L. grayi var. depauperatum and L. grayi (new variety) attract the butterfly. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699270#.UWq0lkqC5mM New natural products isolated from one-seeded juniperus of the southwestern United States / Robert P. Adams in The journal of essential oil research, Vol. 19 N°2 (Mars-Avril 2007)
[article]
in The journal of essential oil research > Vol. 19 N°2 (Mars-Avril 2007) . - pp. 146-152
Titre : New natural products isolated from one-seeded juniperus of the southwestern United States : Isolation and occurrence of 2-ethenyl-3-methyl phenol and its derivatives Type de document : texte imprimé Auteurs : Robert P. Adams, Auteur ; Philip S. Beauchamp, Auteur ; Vasu Dev, Auteur Année de publication : 2007 Article en page(s) : pp. 146-152 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Juniperus pinchotii Juniperus coahuilensis Var. coahuilensis Juniperus coahuilensis var. arizonica Juniperus angosturana Juniperus monosperma Cupessaceae Essential oil composition 2-ethenyl-3-methyl phenol (coahuilensol) 2-ethenyl-3-methyl anisole (coahuilensol, methyl ether) 2-(1′-acetoxyethyl)-3-methyl anisole (pinchotene acetate) Résumé : Re-examination of the leaf essential oils of the one-seeded, serrate leaf junipers of the Southwestern United States and northern Mexico, by GC, GC/MS and NMR, has yielded 2-ethenyl-3-methyl phenol (coahuilensol), 2-ethenyl-3-methyl anisole (coahuilensol, methyl ether), and 2-(1′-acetoxyethyl)-3-methyl anisole (pinchotene acetate) as new natural products. A survey of Juniperus oils revealed that these compounds were found in: three serrate leaf junipers (J. angosturana, two varieties of J. coahuilensis, and J. pinchotii). Coahuilensol was also found in the oils of two smooth leaf junipers of the western hemisphere (J. virginiana var. virginiana and J. v. var. silicicola); three multiple seeded, smooth leaf junipers of the eastern hemisphere (J. semiglobosa, J. semiglobosa var. talassica, and J. thurifera). The phenolic compounds were not found in section Juniperus, section Caryocedrus or in the one seeded, smooth leaf junipers of the eastern hemisphere. Coahuilensol has been previously reported as 2-(2-propenyl)-phenol (tentative). The leaf oils of J. angosturana J. coahuilensis, J. coahuilensis var. coahuilensis, J. monosperma and J. pinchotii were re-examined based on fresh oil collections and the compositions are reported. NMR data and mass spectra of the three 3-methyl phenols are presented to aid in future identification. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699247 [article] New natural products isolated from one-seeded juniperus of the southwestern United States : Isolation and occurrence of 2-ethenyl-3-methyl phenol and its derivatives [texte imprimé] / Robert P. Adams, Auteur ; Philip S. Beauchamp, Auteur ; Vasu Dev, Auteur . - 2007 . - pp. 146-152.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 19 N°2 (Mars-Avril 2007) . - pp. 146-152
Mots-clés : Juniperus pinchotii Juniperus coahuilensis Var. coahuilensis Juniperus coahuilensis var. arizonica Juniperus angosturana Juniperus monosperma Cupessaceae Essential oil composition 2-ethenyl-3-methyl phenol (coahuilensol) 2-ethenyl-3-methyl anisole (coahuilensol, methyl ether) 2-(1′-acetoxyethyl)-3-methyl anisole (pinchotene acetate) Résumé : Re-examination of the leaf essential oils of the one-seeded, serrate leaf junipers of the Southwestern United States and northern Mexico, by GC, GC/MS and NMR, has yielded 2-ethenyl-3-methyl phenol (coahuilensol), 2-ethenyl-3-methyl anisole (coahuilensol, methyl ether), and 2-(1′-acetoxyethyl)-3-methyl anisole (pinchotene acetate) as new natural products. A survey of Juniperus oils revealed that these compounds were found in: three serrate leaf junipers (J. angosturana, two varieties of J. coahuilensis, and J. pinchotii). Coahuilensol was also found in the oils of two smooth leaf junipers of the western hemisphere (J. virginiana var. virginiana and J. v. var. silicicola); three multiple seeded, smooth leaf junipers of the eastern hemisphere (J. semiglobosa, J. semiglobosa var. talassica, and J. thurifera). The phenolic compounds were not found in section Juniperus, section Caryocedrus or in the one seeded, smooth leaf junipers of the eastern hemisphere. Coahuilensol has been previously reported as 2-(2-propenyl)-phenol (tentative). The leaf oils of J. angosturana J. coahuilensis, J. coahuilensis var. coahuilensis, J. monosperma and J. pinchotii were re-examined based on fresh oil collections and the compositions are reported. NMR data and mass spectra of the three 3-methyl phenols are presented to aid in future identification. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699247 The leaf essential oils of juniperus communis L. varieties in north america and the NMR and MS data for isoabienol / Robert P. Adams in The journal of essential oil research, Vol. 22 N° 1 (Janvier/Fevrier 2010)
[article]
in The journal of essential oil research > Vol. 22 N° 1 (Janvier/Fevrier 2010) . - pp. 23-28
Titre : The leaf essential oils of juniperus communis L. varieties in north america and the NMR and MS data for isoabienol Type de document : texte imprimé Auteurs : Robert P. Adams, Auteur ; Philip S. Beauchamp, Auteur ; Vasu Dev, Auteur Article en page(s) : pp. 23-28 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Juniperus communis var. charlottensis Juniperus communis var. depressa Juniperus communis var. jackii Juniperus communis var. megistocarepa Juniperus communis var. saxatilis Cupressaceae Essential oil composition α-pinene δ-3-carene β-phellandrene Isoabienol Index. décimale : 646 Résumé : This is first report on the composition of the leaf essential oils of J. communis L. varieties from the Western Hemisphere.
The oil of Juniperus communis var. jackii had the most distinct oil and contained moderate amounts of α-pinene (16.1–18.9%), δ-3-carene (17.9–28.4%) and β-phellandrene (9.2–13.4%) along with several diterpenes including isoabienol.
Juniperus communis var. charlottensis oil had a very high concentration of α-pinene (59.3%), with moderate amounts of β-pinene (5.9%), δ-3-carene (3.6%) and β-phellandrene (2.9%).
The oil of J. communis var. depressa was dominated by α-pinene (53.9%), δ-3-carene (9.3%) and β-pinene (5.5%) and was a little unusual in also containing citronellol, citronellyl acetate, neryl acetate and geranyl acetate with no diterpenes.
The oil of J. communis var. megistocarpa possessed large amounts of α-pinene (58.5%), limonene (20.4%) and β-pinene (5.0%) and, like J. communis var. depressa, its oil also contained citronellol, citronellyl acetate, neryl acetate and geranyl acetate.
Putative J. communis var. saxatilis from Idaho, USA, had a high concentration of α-pinene (56.5%) with moderate amounts of δ-3-carene (11.5%), β-pinene (5.4%), myrcene (4.5%) and β-phellandrene (3.1%).
The oils of these North American varieties were compared to J. communis var. communis (Sweden) and J. communis var. saxatilis (Switzerland).
A survey of approximately 65 species of Juniperus revealed that isoabienol was present in eight species. X-ray, MS and 13C-NMR were used to determine the structure of isoabienol (I) and KI and a mass spectrum is presented to aid future identification.DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/47 [article] The leaf essential oils of juniperus communis L. varieties in north america and the NMR and MS data for isoabienol [texte imprimé] / Robert P. Adams, Auteur ; Philip S. Beauchamp, Auteur ; Vasu Dev, Auteur . - pp. 23-28.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 22 N° 1 (Janvier/Fevrier 2010) . - pp. 23-28
Mots-clés : Juniperus communis var. charlottensis Juniperus communis var. depressa Juniperus communis var. jackii Juniperus communis var. megistocarepa Juniperus communis var. saxatilis Cupressaceae Essential oil composition α-pinene δ-3-carene β-phellandrene Isoabienol Index. décimale : 646 Résumé : This is first report on the composition of the leaf essential oils of J. communis L. varieties from the Western Hemisphere.
The oil of Juniperus communis var. jackii had the most distinct oil and contained moderate amounts of α-pinene (16.1–18.9%), δ-3-carene (17.9–28.4%) and β-phellandrene (9.2–13.4%) along with several diterpenes including isoabienol.
Juniperus communis var. charlottensis oil had a very high concentration of α-pinene (59.3%), with moderate amounts of β-pinene (5.9%), δ-3-carene (3.6%) and β-phellandrene (2.9%).
The oil of J. communis var. depressa was dominated by α-pinene (53.9%), δ-3-carene (9.3%) and β-pinene (5.5%) and was a little unusual in also containing citronellol, citronellyl acetate, neryl acetate and geranyl acetate with no diterpenes.
The oil of J. communis var. megistocarpa possessed large amounts of α-pinene (58.5%), limonene (20.4%) and β-pinene (5.0%) and, like J. communis var. depressa, its oil also contained citronellol, citronellyl acetate, neryl acetate and geranyl acetate.
Putative J. communis var. saxatilis from Idaho, USA, had a high concentration of α-pinene (56.5%) with moderate amounts of δ-3-carene (11.5%), β-pinene (5.4%), myrcene (4.5%) and β-phellandrene (3.1%).
The oils of these North American varieties were compared to J. communis var. communis (Sweden) and J. communis var. saxatilis (Switzerland).
A survey of approximately 65 species of Juniperus revealed that isoabienol was present in eight species. X-ray, MS and 13C-NMR were used to determine the structure of isoabienol (I) and KI and a mass spectrum is presented to aid future identification.DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/47