Benutzer-Werkzeuge

Webseiten-Werkzeuge


gaultheria_procumbens_l

Dies ist eine alte Version des Dokuments!


Gaultheria procumbens L. - Ericaceae - checkerberry, creeping wintergreen, Niedere Scheinbeere, Wintergrünstrauch

Creeping subshrub, native to Northern America; leaves obovate to oval or orbiculate, serrate, pale green abaxially, bright green, glaucous adaxially; flowers axillary, solitary, or with 2-3 nodding per node, corolla urceolate, white; fruits bright red to reddish violet, 6-9mm wide.
http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220005469

„The fruits of G. procumbens, considered its actual „teaberries,“ are edible, with a taste similar to Candy Hearts and the leaves and branches make a fine herbal tea, through normal drying and infusion process. For the leaves to yield significant amounts of their essential oil, they need to be fermented for at least 3 days.“
https://en.wikipedia.org/wiki/Gaultheria_procumbens

Decoctions of the leaves and the essential oil are used in traditional medicine „… externally as a counterirritant to treat painful muscles and joints, including rheumatism. Infusions, decoctions or small amounts of the oil are rarely taken internally, as tonic, to treat rheumatism and to relieve minor stomach upsets. Canadian Natives traditionally made a refreshing tea from the leaves… methyl salicylate… has a very characteristic smell and a sweetish taste. Nowadays, synthetic methyl salicylate has largely replaced the natural product… [in oinments to treat rheumatism eg.]“
[Medicinal Plants of the World. Ben-Erik Van Wyk and Michael Wink, Pretoria 2004, 153]

methyl salicylate

„GC-MS analysis showed that methyl salicylate (96.90%) was the main component of the oil. Essential oil inhibited the growth of all microorganisms tested, i.e. food and oral bacteria and fungi, respectively (MIC 0.18-3.00 mg/ml and MBC 1.25-4.00 mg/ml; MIC 0.73-5.00 mg/ml and MFC 2.92-26.67 mg/ml); The oil effectively inhibited the biofilm formation of oral Streptococcus mutans and Candida albicans as well (MIC 25.00 MBC 50.00 mg/ml; MIC 12.50, MFC 50.00 mg/ml).“ Minor components of the essential oil were limonene (2.1%), α-pinene (0.2%), β-pinene (0.2%), fenchone (0.1%) and menthone (0.1%).
[Chemical composition and biological activity of Gaultheria procumbens L. essential oil., Nikolić, M., Marković, T., Mojović, M., Pejin, B., Savić, A., Perić, T., Soković, M., Industrial Crops and Products, 49, 2013, 561-567]

Like in G.procumbens, methyl salicylate is also the main component of the leaf oil of Gaultheria fragrantissima (94.6-97.0%) and Gaultheria yunnanensis (99%). Minor component was eg. ethyl salicylate, especially in G.fragrantissima (5.3%).
[Gaultheria: Phytochemical and pharmacological characteristics., Liu, W.R., Qiao, W. L., Liu, Z.Z., Wang, X.H., Jiang, R., Li, S.Y., She, G.M., Molecules, 18(10), 2013, 12071-12108] http://www.mdpi.com/1420-3049/18/10/12071

gaultheria_procumbens.jpg
Curtis’s Botanical Magazine, vol.45 t.1966 (1818)
http://plantgenera.org/species.php?id_species=455570

gaultheria_procumbens_l.1482322145.txt.gz · Zuletzt geändert: 2016/12/21 13:09 von andreas