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Détail de l'auteur
Auteur Wilfried A. Koenig
Documents disponibles écrits par cet auteur
Affiner la rechercheEssential oil composition of eleutherococcus senticosus (Rupr. et Maxim.) maxim roots / Rita Richter 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. 209-210
Titre : Essential oil composition of eleutherococcus senticosus (Rupr. et Maxim.) maxim roots Type de document : texte imprimé Auteurs : Rita Richter, Auteur ; Hans-P. Hanssen, Auteur ; Wilfried A. Koenig, Auteur Année de publication : 2007 Article en page(s) : pp. 209-210 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Eleutherococcus senticosus Araliaceae Siberian ginseng Essential oil composition (E)-anethole Résumé : The root oils of three samples of Eleutherococcus senticosus were analyzed by GC and GC/MS. The quantitatively most significant constituent in the oils of samples 1 and 2, respectively, was (E)-anethole (27.9–17.2%), whereas it could be found only at a concentration of 1.0% in sample 3. In this oil sample, predominating compounds were thymol (4.7%), α-longipinene (4,8%), guaia-6,9-dien-4β-ol (7.4%) and α-bisabolol (7.6%). Generally, the content of monoterpenoids (56–16%) was distinctly more variable compared to the sesquiterpenoids (36–25%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699262#.UWqi2UqC5mM [article] Essential oil composition of eleutherococcus senticosus (Rupr. et Maxim.) maxim roots [texte imprimé] / Rita Richter, Auteur ; Hans-P. Hanssen, Auteur ; Wilfried A. Koenig, Auteur . - 2007 . - pp. 209-210.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 19 N°3 (Mai/Juin 2007) . - pp. 209-210
Mots-clés : Eleutherococcus senticosus Araliaceae Siberian ginseng Essential oil composition (E)-anethole Résumé : The root oils of three samples of Eleutherococcus senticosus were analyzed by GC and GC/MS. The quantitatively most significant constituent in the oils of samples 1 and 2, respectively, was (E)-anethole (27.9–17.2%), whereas it could be found only at a concentration of 1.0% in sample 3. In this oil sample, predominating compounds were thymol (4.7%), α-longipinene (4,8%), guaia-6,9-dien-4β-ol (7.4%) and α-bisabolol (7.6%). Generally, the content of monoterpenoids (56–16%) was distinctly more variable compared to the sesquiterpenoids (36–25%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699262#.UWqi2UqC5mM Essential oil composition of lawsonia inermis L. leaves from Nigeria / Adebola O. Oyedeji in The journal of essential oil research, Vol. 17 N° 4 (Juillet-Août 2005)
[article]
in The journal of essential oil research > Vol. 17 N° 4 (Juillet-Août 2005) . - pp. 403-404
Titre : Essential oil composition of lawsonia inermis L. leaves from Nigeria Type de document : texte imprimé Auteurs : Adebola O. Oyedeji, Auteur ; Olusegun Ekundayo, Auteur ; Wilfried A. Koenig, Auteur Année de publication : 2006 Article en page(s) : pp. 403-404 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Lawsonia inermis Lythraceae Henna Essential oil composition Ethyl hexadecanate (E)-methyl cinnamate Résumé : The essential oil of the leaves of Lawsonia inermis L. (henna) was analyzed by GC and GC/MS. Thirty-six components, which constituted 80.4% of the oil, were identified. The major components were ethyl hexadecanoate (24.4%), (E)-methyl cinnamate (11.4%), isocaryophyllene (8.1%), (E)-β-ionone (5.8%) and methyl linolenate (4.1%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698943#.Ucg7J2F2_n7 [article] Essential oil composition of lawsonia inermis L. leaves from Nigeria [texte imprimé] / Adebola O. Oyedeji, Auteur ; Olusegun Ekundayo, Auteur ; Wilfried A. Koenig, Auteur . - 2006 . - pp. 403-404.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 17 N° 4 (Juillet-Août 2005) . - pp. 403-404
Mots-clés : Lawsonia inermis Lythraceae Henna Essential oil composition Ethyl hexadecanate (E)-methyl cinnamate Résumé : The essential oil of the leaves of Lawsonia inermis L. (henna) was analyzed by GC and GC/MS. Thirty-six components, which constituted 80.4% of the oil, were identified. The major components were ethyl hexadecanoate (24.4%), (E)-methyl cinnamate (11.4%), isocaryophyllene (8.1%), (E)-β-ionone (5.8%) and methyl linolenate (4.1%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698943#.Ucg7J2F2_n7