Auteur Wudeneh Letchamo
Documents disponibles écrits par cet auteur (5)
Affiner la recherche
Article : texte imprimé
Wudeneh Letchamo, Auteur ; Elena A. Korolyuk, Auteur ; Alexey V. Tkachev, Auteur |The chemical composition of the leaf oil of Schizonepeta annua (Pallas, Schischkin) from Altai Region, Siberia, which was obtained in 4.0% yield, was investigated by GC and GC/MS. The major components were thymol (48.1%), γ-tepinene (18.1%), car[...]
Article : texte imprimé
Wudeneh Letchamo, Auteur ; Elena A. Korolyuk, Auteur ; Alexey V. Tkachev, Auteur |Distillation of the flowering tops of Sium latifolium L, from Altai Region for 3 h yielded 0.05%, mobile colorless oil reminiscent of angelica root oil. By analyzing the oil samples using GC and GC/MS, we found that the major components were lim[...]
Article : texte imprimé
Alexey V. Tkachev, Auteur ; Elena A. Korolyuk, Auteur ; Wudeneh Letchamo, Auteur |Distillation of the flowering tops of Kadenia dubia (Schkuhr) Lavrova et V.N.Tichom., from Altai Region for 3 h yielded 0.03% aromatic, mobile light yellowish-green oil. By analyzing the oil samples using GC and GC/MS, we found that the major co[...]
Article : texte imprimé
Alexey V. Tkachev, Auteur ; Elena A. Korolyuk, Auteur ; Wudeneh Letchamo, Auteur |Distillation of the fresh flowering tops of Heteropappus altaicus Willd. (Novopokr.) collected from four different altitudes of Altai Region of Siberia yielded mobile, dark green to yellowish oils, depending on the altitude and location of colle[...]
Article : texte imprimé
Alexey V. Tkachev, Auteur ; Elena A. Korolyuk, Auteur ; Wudeneh Letchamo, Auteur |Distillation of the fresh flowering tops of wild-growing Solidago virgaurea L. collected from the Russian Altai at 290 m and 650 m yielded 0.22% and 0.07% pure light yellow oil, respectively. GC and GC/MS analyses of the oils revealed that the m[...]
