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Détail de l'auteur
Auteur François-Xavier Garneau
Documents disponibles écrits par cet auteur
Affiner la rechercheAnalysis of cymenes in essential oils / Guy Collin in The journal of essential oil research, Vol. 22 N° 4 (Juillet/Août 2010)
in The journal of essential oil research > Vol. 22 N° 4 (Juillet/Août 2010) . - pp. 310-313
Titre : Analysis of cymenes in essential oils : The case of lepechinia meyeni (Walp.) Epling. Type de document : texte imprimé Auteurs : Guy Collin, Auteur ; François-Xavier Garneau, Auteur ; Hélène Gagnon, Auteur Année de publication : 2011 Article en page(s) : pp. 310-313 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Lepechinia meyeni Lamiaceae Essential oil composition o-cymene m-cymene p-cymene 3,7,7-trimethyl-1,3,5-cycloheptatriene Index. décimale : 646 Résumé : The similarity of the mass spectra of the o-, m- and p-cymenes together with the small differences of their retention indices make it difficult to unambiguously identify the three cymene isomers. Moreover, there are discrepancies in the various data banks used as a reference in the analysis of essential oils. The authors have taken advantage of the presence of these three compounds in the oil of Lepechinia meyeni to identify the right order of elution of these compounds on both non-polar and polar columns. The order of elution on both DB-5 and S-wax 10 capillary columns is: m-, followed closely by p- and finally at some distance, o-cymene. A fourth compound having a similar mass spectrum was observed. From the literature, it was tentatively identified as 3,7,7-trimethyl-1,3,5-cycloheptatriene. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2010.9700333 [article] Analysis of cymenes in essential oils : The case of lepechinia meyeni (Walp.) Epling. [texte imprimé] / Guy Collin, Auteur ; François-Xavier Garneau, Auteur ; Hélène Gagnon, Auteur . - 2011 . - pp. 310-313.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 22 N° 4 (Juillet/Août 2010) . - pp. 310-313
Mots-clés : Lepechinia meyeni Lamiaceae Essential oil composition o-cymene m-cymene p-cymene 3,7,7-trimethyl-1,3,5-cycloheptatriene Index. décimale : 646 Résumé : The similarity of the mass spectra of the o-, m- and p-cymenes together with the small differences of their retention indices make it difficult to unambiguously identify the three cymene isomers. Moreover, there are discrepancies in the various data banks used as a reference in the analysis of essential oils. The authors have taken advantage of the presence of these three compounds in the oil of Lepechinia meyeni to identify the right order of elution of these compounds on both non-polar and polar columns. The order of elution on both DB-5 and S-wax 10 capillary columns is: m-, followed closely by p- and finally at some distance, o-cymene. A fourth compound having a similar mass spectrum was observed. From the literature, it was tentatively identified as 3,7,7-trimethyl-1,3,5-cycloheptatriene. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2010.9700333
in The journal of essential oil research > Vol. 20 n°3 (Mai/Juin 2008) . - pp. 250-254
Titre : Aromas from Quebec. I. composition of the essential oil of the rhizomes of acorus calamus L. Type de document : texte imprimé Auteurs : François-Xavier Garneau, Auteur ; Guy Collin, Auteur ; Hélène Gagnon, Auteur Année de publication : 2008 Article en page(s) : pp. 250-254 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Acorus calamus Araceae Essential oil composition Preisocalamenediol Acorenone Shyobunone Epi-acorone Stereochemistry Cryptoacorone Résumé : The chemical composition of the essential oil obtained from the rhizomes of Acorus calamus (sweet flag) collected in the Grondines region, Province of Quebec, was determined by GC/FID and GC/MS analyses. Several components were isolated by liquid chromatography and were identified by various NMR experiments such as: 1H-NMR, 13C-NMR, HSQC, HMBC, and NOESY. The major compounds were identified as preisocalamenediol, acorenone, shyobunone, and cryptoacorone. The complete stereochemical structure of cryptoacorone was elucidated. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700004 [article] Aromas from Quebec. I. composition of the essential oil of the rhizomes of acorus calamus L. [texte imprimé] / François-Xavier Garneau, Auteur ; Guy Collin, Auteur ; Hélène Gagnon, Auteur . - 2008 . - pp. 250-254.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 20 n°3 (Mai/Juin 2008) . - pp. 250-254
Mots-clés : Acorus calamus Araceae Essential oil composition Preisocalamenediol Acorenone Shyobunone Epi-acorone Stereochemistry Cryptoacorone Résumé : The chemical composition of the essential oil obtained from the rhizomes of Acorus calamus (sweet flag) collected in the Grondines region, Province of Quebec, was determined by GC/FID and GC/MS analyses. Several components were isolated by liquid chromatography and were identified by various NMR experiments such as: 1H-NMR, 13C-NMR, HSQC, HMBC, and NOESY. The major compounds were identified as preisocalamenediol, acorenone, shyobunone, and cryptoacorone. The complete stereochemical structure of cryptoacorone was elucidated. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700004
in The journal of essential oil research > Vol. 22 N° 2 (Mars/Avril 2010) . - pp. 164 - 169
Titre : Aromas from Quebec. II. composition of the essential oil of the rhizomes and roots of asarum canadense L. Type de document : texte imprimé Auteurs : André Bélanger, Auteur ; Guy Collin, Auteur ; François-Xavier Garneau, Auteur Année de publication : 2010 Article en page(s) : pp. 164 - 169 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Asarum canadense Aristolochiaceae Essential oil composition Methyl eugenol (E)-isoelemicin Linalool Junenol Methoxylated elemicin Hydroxy elemicin isomers Index. décimale : 646 Résumé : The fresh rhizomes and roots of Asarum canadense were steam-distilled to yield oils in 1.30% to 1.96%, respectively.
The oils were analyzed by a combination of GC-FID and GC/MS techniques.
In the case of the rhizome oil, the total amount of phenyl ethers including methyl eugenol, elemicins, and asaricin was about 58%.
In the root oil, (E)-isoelemicin was the major product (20%) accompanied by elemicin (4.9%).
From retention indices on both non-polar and polar columns and MS considerations, it may be inferred that methoxy-elemicin and both (E)- and (Z)-methoxy-isoelemicin as well as the new hydroxyl derivatives: hydroxyl-elemicin and (E)- and (Z)-hydroxy-isoelemicins were characterized in the oils.DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/50 [article] Aromas from Quebec. II. composition of the essential oil of the rhizomes and roots of asarum canadense L. [texte imprimé] / André Bélanger, Auteur ; Guy Collin, Auteur ; François-Xavier Garneau, Auteur . - 2010 . - pp. 164 - 169.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 22 N° 2 (Mars/Avril 2010) . - pp. 164 - 169
Mots-clés : Asarum canadense Aristolochiaceae Essential oil composition Methyl eugenol (E)-isoelemicin Linalool Junenol Methoxylated elemicin Hydroxy elemicin isomers Index. décimale : 646 Résumé : The fresh rhizomes and roots of Asarum canadense were steam-distilled to yield oils in 1.30% to 1.96%, respectively.
The oils were analyzed by a combination of GC-FID and GC/MS techniques.
In the case of the rhizome oil, the total amount of phenyl ethers including methyl eugenol, elemicins, and asaricin was about 58%.
In the root oil, (E)-isoelemicin was the major product (20%) accompanied by elemicin (4.9%).
From retention indices on both non-polar and polar columns and MS considerations, it may be inferred that methoxy-elemicin and both (E)- and (Z)-methoxy-isoelemicin as well as the new hydroxyl derivatives: hydroxyl-elemicin and (E)- and (Z)-hydroxy-isoelemicins were characterized in the oils.DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/50
in The journal of essential oil research > Vol. 21 N° 2+ supplément vol.20 (Mars/Avril 2009+ supplément 2008) . - pp. 129-131
Titre : Essential oils from bolivia. V. rutaceae: zanthoxylum coco gill. ex hook. f. et arn. Type de document : texte imprimé Auteurs : Bernardo Lopez Arze, Auteur ; François-Xavier Garneau, Auteur ; Guy Collin, Auteur Article en page(s) : pp. 129-131 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Zanthoxylum coco Rutaceae Essential oil composition santolinatriene Limonene Index. décimale : 646 Résumé : The essential oil of the aerial parts of Zanthoxylum coco (Rutaceae) from Bolivia was analyzed by GC and GC/ MS.
The oil was characterized by a high percentage of santolinatriene (? 28%) and monoterpene derivatives: α- and β-pinenes (? 5% each).
The other compounds belong to the monoterpene (? 5.7%), sesquiterpene (? 5%) and oxygenated sesquiterpene (? 3%) group.DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top [article] Essential oils from bolivia. V. rutaceae: zanthoxylum coco gill. ex hook. f. et arn. [texte imprimé] / Bernardo Lopez Arze, Auteur ; François-Xavier Garneau, Auteur ; Guy Collin, Auteur . - pp. 129-131.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 21 N° 2+ supplément vol.20 (Mars/Avril 2009+ supplément 2008) . - pp. 129-131
Mots-clés : Zanthoxylum coco Rutaceae Essential oil composition santolinatriene Limonene Index. décimale : 646 Résumé : The essential oil of the aerial parts of Zanthoxylum coco (Rutaceae) from Bolivia was analyzed by GC and GC/ MS.
The oil was characterized by a high percentage of santolinatriene (? 28%) and monoterpene derivatives: α- and β-pinenes (? 5% each).
The other compounds belong to the monoterpene (? 5.7%), sesquiterpene (? 5%) and oxygenated sesquiterpene (? 3%) group.DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top
in The journal of essential oil research > Vol. 21 N°1 (Janvier/Février 2009) . - pp. 36-40
Titre : Essential oils from bolivia. VI. lamiaceae: lepechinia graveolens (Reg.) epling, L. floribunda (Benth.) epling, and L. meyeni (Walp.) epling Type de document : texte imprimé Auteurs : Javier Bernardo Lopez Arze, Auteur ; Guy Collin, Auteur ; François-Xavier Garneau, Auteur Article en page(s) : pp. 36-40 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Lepechinia graveolens Lepechinia floribunda Lepechinia meyeni Lamiaceae Essential oil composition β-caryophyllene Bornyl acetate α-pinene β-pinene α-bisabolol Index. décimale : 646 Résumé : The chemical composition of the essential oils obtained from three different Lamiaceae, Lepechinia graveolens, L. floribunda and L. meyeni growing in the High Valley Region of Bolivia, Province of Cochabamba, was determined by a combination of GC and GC/MS measurements.
Sesquiterpenes dominated in L. graveolens (61%).
In the oil of L. meyeni the monoterpenes constituted the most important fraction (ca. 40%) followed by oxygenated sesquiterpenes (ca. 31%).
Finally, the composition of the oil of L. floribunda was more complex: sesquiterpenes (20–28%), monoterpenes (21–20%), oxygenated sesquiterpenes (21–23%), and oxygenated monoterpenes (18.5–13%).DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top [article] Essential oils from bolivia. VI. lamiaceae: lepechinia graveolens (Reg.) epling, L. floribunda (Benth.) epling, and L. meyeni (Walp.) epling [texte imprimé] / Javier Bernardo Lopez Arze, Auteur ; Guy Collin, Auteur ; François-Xavier Garneau, Auteur . - pp. 36-40.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 21 N°1 (Janvier/Février 2009) . - pp. 36-40
Mots-clés : Lepechinia graveolens Lepechinia floribunda Lepechinia meyeni Lamiaceae Essential oil composition β-caryophyllene Bornyl acetate α-pinene β-pinene α-bisabolol Index. décimale : 646 Résumé : The chemical composition of the essential oils obtained from three different Lamiaceae, Lepechinia graveolens, L. floribunda and L. meyeni growing in the High Valley Region of Bolivia, Province of Cochabamba, was determined by a combination of GC and GC/MS measurements.
Sesquiterpenes dominated in L. graveolens (61%).
In the oil of L. meyeni the monoterpenes constituted the most important fraction (ca. 40%) followed by oxygenated sesquiterpenes (ca. 31%).
Finally, the composition of the oil of L. floribunda was more complex: sesquiterpenes (20–28%), monoterpenes (21–20%), oxygenated sesquiterpenes (21–23%), and oxygenated monoterpenes (18.5–13%).DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top
