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hyacinthus_orientalis_l [2017/07/24 19:37]
andreas |
hyacinthus_orientalis_l [2018/11/02 12:01]
andreas |
| Perennial herb, up to 20(40)cm high, native to Western Asia (Israel, Lebanon, Syria, Turkey), naturalized in the Mediterranean region, widely cultivated as ornamental; flowers in erect racemes, pendent to suberect, strongly sweetly scented, perianth blue or white, 10-35mm, tube slightly constricted near middle, lobes strongly recurved. \\ [[http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?19427]] | Perennial herb, up to 20(40)cm high, native to Western Asia (Israel, Lebanon, Syria, Turkey), naturalized in the Mediterranean region, widely cultivated as ornamental; flowers in erect racemes, pendent to suberect, strongly sweetly scented, perianth blue or white, 10-35mm, tube slightly constricted near middle, lobes strongly recurved. \\ [[http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?19427]] |
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| "The volatiles of white hyacinths were isolated by dynamic headspace trapping. More than 70 constituents could be identified by GC and GC-MS. The principal constituents were benzyl acetate and (E,E)-α-farnesene. Beside these, sensorily important substances like indole, oct-1-en-3-ol and phenylacetaldehyde were identified. Minor traces of three substituted pyrazines could be detected by GC-sniffing. The advantages of the simultaneous “closed-loop stripping” technique using various adsorbing agents at the same time were demonstrated. By this means artefact formation and discrimination of individual components could be determined." \\ | Main constituents of the absolute of hyacinth flowers were benzyl alcohol (40.0%), (E)-cinnamyl alcohol (11.0%), benzyl acetate (8.0%), benzyl benzoate (6.0%), phenylethanol (3.7%), 1,2,4-trimethoxybenzene (3.0%), methyl eugenol (1.5%), 4-methoxyphenethyl alcohol (1.2%), and phenylethyl benzoate (1.2%). Other components included e.g. aldehydes like benzaldehyde (0.1%) and cinnamaldehyde (0.3%), alcohols like phenyl propyl alcohol (0.8%), aromatics like 1,4-dimethoxybenzene (0.2%), terpenes like α-farnesene (0.6%) and eugenol (0.2%), esters like methyl salicylate (0.1%) and cinnamyl acetate (0.7%), and olfactorly important minor and trace compounds like methyl N-methyl anthranilate (0.3%), elemicin (0.6%), indole (0.15%), 2-methoxy-3-isobutyl pyrazine (traces), and quinoline (traces). \\ |
| [Headspace analysis of hyacinth flowers. Brunke, E. J., Hammerschmidt, F. J., Schmaus, G., Flavour and fragrance journal, Vol.9(2), 1994, 59-69] | [Kaiser, R. & Lamparsky, D., Nouveaux constituants de l'absolue de jacinthe et leur comportement olfactif. Parf. Cosm. Arômes, no. 17 (1977) 71-79] |
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| |{{:benzylacetate.jpg|benzyl acetate}} \\ benzyl acetate \\ //(sweet floral)// |{{:farnesene_eealpha.jpg|(E,E)-α-farnesene}} \\ (E,E)-α-farnesene |{{:26dimethyl357octatriene2ol.jpg| 2,6-dimethyl-3(E),5(Z/E),7-octatriene-2-ol }} \\ 2,6-dimethyl-3(E),5(Z/E),7-octatriene-2-ol \\ //(sweet floral)// |{{:ocimene_z_beta.jpg|(Z)-ocimene}} \\ (Z)-ocimene \\ //(warm herbal)// | | |
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| Volatiles collected from the headspace of H.orientalis flowers included 2,6-dimethyl-3(E),5(Z),7-octatriene-2-ol and its 5(E) isomer (natural ratio 1:10, sweet floral odor) which are emitted at 8-12% of total volatiles in the evening and 1%-4% during day. (E)-ocimene as precursor showed the opposite rhythm (40-65% of total volatiles between hour 24-12).\\ | Volatiles collected from the headspace of H.orientalis flowers included 2,6-dimethyl-3(E),5(Z),7-octatriene-2-ol and its 5(E) isomer (natural ratio 1:10, sweet floral odor) which are emitted at 8-12% of total volatiles in the evening and 1%-4% during day. (E)-ocimene as precursor showed the opposite rhythm (40-65% of total volatiles between hour 24-12).\\ |
| [Trapping, Investigation and Reconstitution of Flower Scents, Roman Kaiser, in: Müller, P.M., and Lamparsky, D. eds. Perfumes: Art, Science and Technology. Springer Science & Business Media, Dordrecht 1994, 213-250] | [Trapping, Investigation and Reconstitution of Flower Scents, Roman Kaiser, in: Müller, P.M., and Lamparsky, D. eds. Perfumes: Art, Science and Technology. Springer Science & Business Media, Dordrecht 1994, 213-250] |
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| | |{{:benzylacetate.jpg|benzyl acetate}} \\ benzyl acetate \\ //(sweet floral)// |{{:farnesene_eealpha.jpg|(E,E)-α-farnesene}} \\ (E,E)-α-farnesene |{{:26dimethyl357octatriene2ol.jpg| 2,6-dimethyl-3(E),5(Z/E),7-octatriene-2-ol }} \\ 2,6-dimethyl-3(E),5(Z/E),7-octatriene-2-ol \\ //(sweet floral)// |{{:ocimene_z_beta.jpg|(Z)-ocimene}} \\ (Z)-ocimene \\ //(warm herbal)// | |
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| | "The volatiles of white hyacinths were isolated by dynamic headspace trapping. More than 70 constituents could be identified by GC and GC-MS. The principal constituents were benzyl acetate and (E,E)-α-farnesene. Beside these, sensorily important substances like indole, oct-1-en-3-ol and phenylacetaldehyde were identified. Minor traces of three substituted pyrazines could be detected by GC-sniffing. The advantages of the simultaneous “closed-loop stripping” technique using various adsorbing agents at the same time were demonstrated. By this means artefact formation and discrimination of individual components could be determined." \\ |
| | [Headspace analysis of hyacinth flowers. Brunke, E. J., Hammerschmidt, F. J., Schmaus, G., Flavour and fragrance journal, Vol.9(2), 1994, 59-69] |
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| {{:hyacinthus_orientalis.jpg?500}} \\ | {{:hyacinthus_orientalis.jpg?600}} \\ |
| Step,E., Bois,D., Favourite flowers of garden and greenhouse, vol.4 t.277 (1896-1897) \\ | Step,E., Bois,D., Favourite flowers of garden and greenhouse, vol.4 t.277 (1896-1897) \\ |
| [[http://plantgenera.org/species.php?id_species=539956]] | [[http://plantgenera.org/species.php?id_species=539956]] |
