Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
Beide Seiten der vorigen Revision Vorhergehende Überarbeitung Nächste Überarbeitung | Vorhergehende Überarbeitung | ||
hamamelis_virginiana_l [2015/02/22 10:38] andreas |
hamamelis_virginiana_l [2017/11/01 16:43] andreas |
||
---|---|---|---|
Zeile 6: | Zeile 6: | ||
[[http:// | [[http:// | ||
- | Products of the twigs wih leaves (Hamamelidis folium et cortex) are used to treat diarrhea, as a gargle and mouth rinse for inflammation of the gums and throat, skin ailments including wounds, bruises and abrasions, varicose veins, and haemorrhoids. //Hamamelis water// is made by steam distillation with water to which ethanol is added. \\ | + | Products of the twigs wih leaves (Hamamelidis folium et cortex) are used to treat diarrhea, as a gargle and mouth rinse for inflammation of the gums and throat, skin ailments including wounds, bruises and abrasions, varicose veins, and haemorrhoids. //Hamamelis water// is made by steam distillation with water to which ethanol is added at the end. The product contains 15%(vol) ethanol and 10-80ppm essential oil.\\ |
- | [Medicinal Plants of the World. Ben-Erik Van Wyk and Michael Wink, Pretoria 2004, 164] | + | [Medicinal Plants of the World. Ben-Erik Van Wyk and Michael Wink, Pretoria 2004, 164] \\ |
+ | [Hagers Handbuch der Pharmazeutischen Praxis, Springer 2010] | ||
"A crude hydroalcoholic extract from Hamamelis virginiana bark was subjected to ultrafiltration (UF) with a cut-off limit of 3 kDa to obtain a higher and a lower molecular weight fraction. Characterisation of the fractions was attempted with TLC, HPLC, acidic hydrolysis, and chromatography over Sephadex LH-20. The UF-concentrate was shown to consist mainly of oligomeric to polymeric proanthocyanidins (PA). This fraction was found to exhibit significant antiviral activity against Herpes simplex virus type 1 (HSV-1)." | "A crude hydroalcoholic extract from Hamamelis virginiana bark was subjected to ultrafiltration (UF) with a cut-off limit of 3 kDa to obtain a higher and a lower molecular weight fraction. Characterisation of the fractions was attempted with TLC, HPLC, acidic hydrolysis, and chromatography over Sephadex LH-20. The UF-concentrate was shown to consist mainly of oligomeric to polymeric proanthocyanidins (PA). This fraction was found to exhibit significant antiviral activity against Herpes simplex virus type 1 (HSV-1)." | ||
Zeile 17: | Zeile 18: | ||
"... volatile fractions were obtained by water distillation from the entire fresh leaves and freshly collected bark in 0.13 % and 0.09% yields, respectively, | "... volatile fractions were obtained by water distillation from the entire fresh leaves and freshly collected bark in 0.13 % and 0.09% yields, respectively, | ||
ketones, cannot be confirmed by this study... For the bark and leaf distillation product, we found 6, | ketones, cannot be confirmed by this study... For the bark and leaf distillation product, we found 6, | ||
- | aldehydes, nonanal (2.72 %) and hexacosanal (0.91 %) were the main Hamamelis ketones in the bark and leaf distillate, respectively... Compounds with 13 carbons such as the vitispiranes, | + | aldehydes, nonanal (2.72 %) and hexacosanal (0.91 %) were the main Hamamelis ketones in the bark and leaf distillate, respectively... Compounds with 13 carbons such as the vitispiranes, |
and hydroxydihydroedulan are rare essential oil components, accounting for ca 0.4%. The diterpenes manoyloxide, | and hydroxydihydroedulan are rare essential oil components, accounting for ca 0.4%. The diterpenes manoyloxide, | ||
- | [Study on the composition of the volatile fraction of Hamamelis virginiana., | + | [Study on the composition of the volatile fraction of Hamamelis virginiana., |
- | [[http:// | + | |
"... two major classes of constituents, | "... two major classes of constituents, | ||
Zeile 28: | Zeile 28: | ||
[Highly galloylated tannin fractions from witch hazel (Hamamelis virginiana) bark: electron transfer capacity, in vitro antioxidant activity, and effects on skin-related cells., Touriño, S., Lizárraga, D., Carreras, A., Lorenzo, S., Ugartondo, V., Mitjans, M., Torres, J.L., Chemical research in toxicology, Vol.21(3), 2008, 696-704] | [Highly galloylated tannin fractions from witch hazel (Hamamelis virginiana) bark: electron transfer capacity, in vitro antioxidant activity, and effects on skin-related cells., Touriño, S., Lizárraga, D., Carreras, A., Lorenzo, S., Ugartondo, V., Mitjans, M., Torres, J.L., Chemical research in toxicology, Vol.21(3), 2008, 696-704] | ||
- | {{http:// | + | {{:hamamelis_virginiana.jpg?600}} \\ |
Köhler, F.E., Medizinal Pflanzen, vol. 3: t. 39 (1890) \\ | Köhler, F.E., Medizinal Pflanzen, vol. 3: t. 39 (1890) \\ | ||
[[http:// | [[http:// | ||
+ | |||
+ | {{hamamelis_virginiana_flowering.jpg}} \\ | ||
+ | Hamamelis virginiana flowering in late winter, Author: Andreas Kraska [[https:// |