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daphne_mezereum_l

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Daphne mezereum L. - Thymelaeaceae - mezereon, february daphne, Gemeiner Seidelbast, Kellerhals

Deciduous shrub, 0.40-1.20m high, native to Europe and Western Asia; flowers cauliflor, dark pink or sometimes white, produced in early spring before the leaves; fruits red, ovoid.

„The floral fragrance of the shrub Daphne mezereum in central Sweden was collected by means of the head-space technique and investigated by GC-MS and multi-dimensional GC. (S)-(+)-Linalool was the main constituent (95%) of the flower fragrance and its enantiomeric purity exceeded 99% in the samples. The (2S,5S)- and (2R,5S)-furanoid and the (3R,6S)- and (3S,6S)-pyranoid linalool oxide isomers constituted 2-5% of the fragrance.“
[Floral fragrance chemistry in the early flowering shrub Daphne mezereum. Borg-Karlson, A. K., Unelius, C. R., Valterová, I., Anders Nilsson, L., Phytochemistry, Vol.41(6), 1996, 1477-1483]


linalool stereo isomers: (S)-(+)-linalool (coriandrol: sweet, floral) and (R)-(-)-linalool (licareol: floral, woody lavender)

The main volatile compounds from D.mezereum flower scent, collected by the dynamic headspace method, were linalool (85.6%), (E)-β-ocimene (6.7%), hexadecane (3.7%), benzyl alcohol (0.9%), (E,E)-α-farnesene (0.7%), lavandulol (0.5%), (Z)-β-ocimene (0.6%), cinnamic alcohol (0.4%) and 2-phenylethanol (0.4%).
[Floral scents in butterfly‐pollinated plants: possible convergence in chemical composition., Andersson, S., Nilsson, L.A., Groth, I., Bergström, G., Botanical Journal of the Linnean Society, 140(2), 2002, 129-153]

daphne_mezereum.jpg
Duhamel du Monceau,H.L., Traité des arbres et arbustes, Nouvelle édition [Nouveau Duhamel], vol.1 t.8 (1800-1803) [Redouté]
http://plantgenera.org/species.php?id_species=320908

www.botanische-spaziergaenge.at_bilder_konica_1_pict5632.jpg
Daphne mezereum
© Rolf Marschner (2005), www.botanische-spaziergaenge.at

daphne_mezereum_l.1509141872.txt.gz · Zuletzt geändert: 2017/10/28 00:04 von andreas