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anthoxanthum_odoratum_l [2015/04/19 18:27]
andreas angelegt |
anthoxanthum_odoratum_l [2017/10/14 11:00]
andreas |
| Anthoxanthum odoratum L. - Poaceae - scented vernal grass, flouve odorante (fr.), **Gewöhnliches Ruchgras** | Anthoxanthum odoratum L. - Poaceae - sweet vernalgrass, scented vernal grass, flouve odorante (fr.), **Gewöhnliches Ruchgras** |
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| Perennial grass, up to 60cm high, native to Europe, West Asia, naturalozed in Africa; leaves flat, up to 12cm long, glabrous or loosely pilose, smooth or scabrid, apex acuminate; panicle dense, spikelike, lanceolate; glumes unequal, pubescent or punctiform-scabrid, margins sometimes ciliate, lower glume ca. 1/2 length of upper glume; lower florets sterile, composed only of lemmas, first lemma awned from near middle; second lemma awned near base, awn geniculate; bisexual floret 2–3 mm, smooth, shiny. \\ | Perennial grass, up to 60cm high, native to Europe, West Asia, naturalozed in Africa; leaves flat, up to 12cm long, glabrous or loosely pilose, smooth or scabrid, apex acuminate; panicle dense, spikelike, lanceolate; glumes unequal, pubescent or punctiform-scabrid, margins sometimes ciliate, lower glume ca. 1/2 length of upper glume; lower florets sterile, composed only of lemmas, first lemma awned from near middle; second lemma awned near base, awn geniculate; bisexual floret 2-3 mm, smooth, shiny, palea 1-veined; anthers 3-4.5mm. \\ |
| [[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200024834]] | [[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200024834]] |
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| The perfumery ingredient 'Flouve absolute' (with herbal coumarin scent, CAS 89957-44-8) is obtained by extraction from A.odoratum. | The perfumery ingredient 'Flouve absolute' (with herbal coumarin scent, CAS 89957-44-8) is obtained by extraction from A.odoratum. |
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| The major volatile component of both leaf (96.3%) and hay oil (46.8%) is coumarin. A.odoratum hay oil contains also methyl esters like methyl butyrate (0.7%), methyl valerate (0.3%), methyl hexanoate (0.6%), methyl octanoate (0.9%), methyl nonanoate (1.0%), methyl decanoate (0.3%), methyl dodecanoate (1.3%), methyl tetradecanoate (1.3%), methyl hexadecanoate (9.9%), methyl linolenate (3%) e.g., furthermore octanol (3%), 4-vinylguaiacol (1.9%) and its methyl ether (0.3%), aldehydes like hexanal (0.3%), octanal (0.1%) and nonanal (0.3%). \\ | {{:coumarin.jpg|}} coumarin |
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| | The major volatile component (steam distillation) of the oil from fresh leaves (96.3%) and hay (46.8%) was coumarin. A.odoratum hay oil also contained alcohols like amyl alcohol (0.1%), (Z)-3-hexenol (0.1%), heptanol (0.1%), octanol (3%), (Z)-2-octenol (0.1%), and borneol (0.1%); (Z)-3-hexenyl acetate (0.1%); furthermore 4-vinylguaiacol (1.9%) and its methyl ether (0.3%); aldehydes like valeraldehyde (0.6%), hexanal (0.3%), octanal (0.1%), nonanal (0.3%), (E)-2-decenal (0.1%), benzaldehyde (0.1%), phenylacetaldehyde (0.1%), and veratraldehyde (0.2%). The hay oil was treated with diazomethane, so acids could be quantified as their methyl esters like methyl butyrate (0.7%), methyl valerate (0.3%), methyl hexanoate (0.6%), methyl octanoate (0.9%), methyl nonanoate (1.0%), methyl decanoate (0.3%), methyl dodecanoate (1.3%), methyl tetradecanoate (1.3%), methyl hexadecanoate (9.9%), methyl linolenate (3%) e.g.\\ |
| [Coumarin-containing grass: volatiles from sweet vernalgrass (Anthoxanthum odoratum L.)., Tava, A., Journal of Essential Oil Research, Vol.13(5), 2001, 367-370] | [Coumarin-containing grass: volatiles from sweet vernalgrass (Anthoxanthum odoratum L.)., Tava, A., Journal of Essential Oil Research, Vol.13(5), 2001, 367-370] |
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| Lindman, C.A.M., Bilder ur Nordens Flora, vol.3, t.474 (1922-1926) \\ | Lindman, C.A.M., Bilder ur Nordens Flora, vol.3, t.474 (1922-1926) \\ |
| [[http://plantgenera.org/species.php?id_species=70013]] | [[http://plantgenera.org/species.php?id_species=70013]] |
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| | {{http://www.botanische-spaziergaenge.at/Bilder/Konica_3/PICT9852.JPG}} \\ |
| | Anthoxanthum odoratum\\ © Rolf Marschner (2007), |
| | [[http://botanische-spaziergaenge.at/viewtopic.php?f=554&t=3280| www.botanische-spaziergaenge.at]] |
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