Tinkturenpresse

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Agastache rugosa (Fisch. & C. A. Mey.) Kuntze - syn. Lophanthus rugosus Fisch. & C. A. Mey. - Lamiaceae \\
Chinese giant hyssop, Korean mint, purple giant hyssop, **Ostasiatischer Riesenysop**, Koreaminze

Perennial herb, up to 1m tall, native to Eastern Asia (Korea, Japan, China to Vietnam, Laos); leaves lanceolate to ovate, blueish green, anise scented; flowers tubular, 2-lipped, violet-pink, fragrant, in terminal spikes. The leaves may be used fresh or dry to flavor teas. [[http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=266818&isprofile=0&|MBG]]

"The volatile part of Agastache rugosa, (Labiatae) contains more than 90% of [[http://www.thegoodscentscompany.com/data/rw1013251.html|methyl chavicol]]. The fresh, herbaceous, spicy odor of the ground leaves was therefore caused by methyl chavicol in combination with some minor constituents such as anisaldehyde and p-methoxy cinnamaldehyde." \\
[Volatile constituents of Agastache rugosa., Weyerstahl, P., Marschall, H., Manteuffel, E., Huneck, S., Journal of Essential Oil Research, 4(6), 1992, 585-587]

Main components of the essential oil of A.rugosa were estragole (49.4%), limonene (12.5%) and β-caryophyllene (6.4%). \\
"The essential oil of A. rugosa showed lower fungistatic activity against most of the fungi, as measured by the broth dilution and disk diffusion methods, than estragole. Therefore, the activity of the oil fraction appears to be due mostly to estragole, which comprises half of the oil fraction, while the other components appear to have relatively mild activity... the MIC of ketoconazole alone against B. capitatus was lowered from 25 to 0.78 µg/ml when estragole was added at a concentration of 1.25 mg/ml... Thus, estragole and the essential oil of A. rugosa may be useful in the clinical application of ketoconazole."\\
[Antifungal activity of the essential oil of Agastache rugosa Kuntze and its synergism with ketoconazole., Shin, S., Kang, C.A., Letters in applied microbiology, 36(2), 2003, 111-115] [[http://higiene.unex.es/bibliogr/Antifung/LAM30111.pdf|PDF]]

|{{estragole.jpg|estragole (methyl chavicol)}} \\ estragole \\ (methyl chavicol)  | {{:limonene.jpg|limonene}} \\ limonene |{{:{{:menthone_rac.png|menthone}} \\ menthone | {{:pulegone.jpg| pulegone }} \\ pulegone |  

The intraspecific variability in headspace volatiles of plants from South Korea led to five chemotypes with estragole (Type 1; 90-93%) as the major component, and the other four chemotypes; methyleugenol (Type2; up to 35%), methyleugenol+limonene (Type 3; 35-69/21-44%), menthone (Type 4; 78%) and menthone+pulegone (Type 5; pulegone 50/36%). "Our study indicates that there was a tremendous diversity in the compounds released by leaves of A. rugosa plants collected from South Korea. In the case of USA, the estragole type was also the majority, however, the composition of estragole (55%), menthone (8%), and limonene (10%) in total essential oil were different from the estragole type in Korea native plants (Charles et al. 1991). In the accession from Scotland, quantitatively different estragole type, with estragole (40-50%), menthone (30%), and limonene (10%) were found (Svoboda et al., 1995)." \\
[Song, J-S., Y-A. Chae, and O. Hyun-Choong. "Variability of the volatile composition of Agastache rugosa in South Korea." III WOCMAP Congress on Medicinal and Aromatic Plants-Volume 1: Bioprospecting and Ethnopharmacology 675. 2003] [[https://web.archive.org/web/20190309150417id_/http://pdfs.semanticscholar.org/fb37/8ecd1f651604ef04de3b3b2b86587e64e1b9.pdf|PDF]]

{{:agastache_rugosa.jpg}} \\
Agastache rugosa © Dalgial (2008) [[https://creativecommons.org/licenses/by-sa/3.0/de/|CC BY-SA 3.0]]  [[https://commons.wikimedia.org/wiki/File:Agastache_rugosa_01.JPG|wikimedia]]