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cannabis_sativa_l

Cannabis sativa L. - Cannabaceae - hemp, marihuana, pot, (Saat-) Hanf

Erect annual herb, up to 2m tall, native to Central Asia; stems fibrous; leaves palmate; flowers small, uni-sexual, wind-pollinated; fruit a nut, 3.5-5mm long and 2.5-4mm broad, gray (C.sativa subsp. sativa) or 2.5-3.5mm long and 1.8-2.5mm broad, brown (C.sativa subsp. spontanea Serebrjakova = Cannabis ruderalis Janisch.).

Main components of the volatiles from fresh and dried hemp buds are monoterpenes like β-myrcene (67%/32%), limonene (16%/16%) and linalool (2.8%/5.0%). Sesquiterpenes present in the oil of dried material are e.g. β-caryophyllene (1%/5%), α-humulene (0.2%/2%), (E)-α-farnesene, β-elemene, (Z)-α-bergamotene, α-guaiene, α-cadinene, γ-muurolene, γ-curcumene, viridiflorene (ledene), α-longipinene, γ-cis-bisabolene, γ-trans-bisabolene, β-eudesmol (β-selinenol), α-eudesmol (α-selinenol), and α-epi-bisabolol.
[The volatile oil composition of fresh and air-dried buds of Cannabis sativa., Ross, S.A., ElSohly, M.A., Journal of natural products, Vol.59(1), 1996, 49-51] http://www.medicinalgenomics.com/wp-content/uploads/2011/12/cannabis_volatiles.pdf

myrcene
myrcene
 limonene
limonene
hashishene
hashishene

Cannabis herb and the resin, hashish, show clear differences in their volatile chemical profiles, mostly resulting from photooxidation. Hashish headspace contain remarkable amounts (1.1-14.9%, median value 10.2%) of the rare monoterpene 5,5-dimethyl-1-vinylbicyclo[2.1.1]hexane (hashishene). This unusual compound is formed during the manufacture of hashish by light induced rearrangement of β-myrcene, which is particularly abundant in fresh cannabis herb.
[Multidimensional analysis of cannabis volatile constituents: Identification of 5, 5-dimethyl-1-vinylbicyclo [2.1. 1] hexane as a volatile marker of hashish, the resin of Cannabis sativa L., Marchini, M., Charvoz, C., Dujourdy, L., Baldovini, N., Filippi, J.J., Journal of Chromatography A, 1370, 2014, 200-215]

cannabis_sativa.jpg
Kohl,F.G., Die officinellen Pflanzen der Pharmacopoea Germanica, t.31 (1891-1895)
http://plantgenera.org/species.php?id_species=190322

www.botanische-spaziergaenge.at_bilder_konica_1_pict4414.jpg
Cannabis sativa var.sativa
© Rolf Marschner (2004), www.botanische-spaziergaenge.at

cannabis_sativa_l.txt · Zuletzt geändert: 2018/07/29 16:14 von andreas