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hoya_carnosa_l.f._r.br [2016/06/24 18:23] andreashoya_carnosa_l.f._r.br [2021/09/10 18:30] (aktuell) andreas
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 "Flowers of H.carnosa... are apperently not scented during the day but begin to produce fragrance only in the late evening... The fragrance... contained approx. 20 compounds with linalool, 1.8-cineole, β-pinene, isopentanol, α-pinene and methyl salicylate (in this order of abundance) as the main volatiles... on the first day after anthesis 45-50µg of fragrance were emitted within 24h..." \\ "Flowers of H.carnosa... are apperently not scented during the day but begin to produce fragrance only in the late evening... The fragrance... contained approx. 20 compounds with linalool, 1.8-cineole, β-pinene, isopentanol, α-pinene and methyl salicylate (in this order of abundance) as the main volatiles... on the first day after anthesis 45-50µg of fragrance were emitted within 24h..." \\
-[Rhytms of fragrance emission in flowers., Matile P., Altenburger R., Planta, 174, 1988, 242-247] +[Rhythms of fragrance emission in flowers., Matile P., Altenburger R., Planta, 174, 1988, 242-247] 
  
 |{{:linalool.jpg| linalool}} \\ linalool |{{:1.8cineole.jpg| 1.8-cineole }} \\ 1.8-cineole | {{:alpha_pinene.jpg| α-pinene }} \\ α-pinene |{{:beta_pinene.jpg| β-pinene }} \\ β-pinene |{{:methylsalicylat.jpg| methyl salicylate }} \\ methyl salicylate |{{:isopentanol.jpg| isopentanol }} \\ isopentanol | |{{:linalool.jpg| linalool}} \\ linalool |{{:1.8cineole.jpg| 1.8-cineole }} \\ 1.8-cineole | {{:alpha_pinene.jpg| α-pinene }} \\ α-pinene |{{:beta_pinene.jpg| β-pinene }} \\ β-pinene |{{:methylsalicylat.jpg| methyl salicylate }} \\ methyl salicylate |{{:isopentanol.jpg| isopentanol }} \\ isopentanol |
Zeile 12: Zeile 12:
 [Circadian rhythmicity of fragrance emission in flowers of Hoya carnosa R.Br., Altenburger, R., Matile, P., Planta, 174(2), 1988, 248-252] [Circadian rhythmicity of fragrance emission in flowers of Hoya carnosa R.Br., Altenburger, R., Matile, P., Planta, 174(2), 1988, 248-252]
  
-The fragrant volatiles of the typical nightly odor of H.carnosa was collected by dynamic and vacuum headspace analysis. The product of the vacuum process had superior organoleptic properties, containing mainly isoamyl alcohol (25%) and linalool (23%), furthermore sabinene (0.6%), benzaldehyde (1.5%), benzyl alcohol (14%), 2-phenyl ethanol (4%), methyl salicylate (2.5%), endo-2-hydroxycineole (4%) and eugenol (0.3%). \\+The fragrant volatiles of the typical nightly odor of H.carnosa was collected by dynamic and vacuum headspace analysis. Although collected from a non-fragrant flower at daytime, the composition of the vacuum headspace concentrate surprisingly was roughly comparable to that of the fragrant flowers at nighttime. \\  
 +"Obviously, //Hoya carnosa// stores the volatiles produced in the daytime and releases them at night." \\ 
 +The product of the vacuum process had superior organoleptic properties, containing mainly isoamyl alcohol (isopentanol, 25%) and linalool (23%), furthermore sabinene (0.6%), benzaldehyde (1.5%), benzyl alcohol (14%), 2-phenyl ethanol (4%), methyl salicylate (2.5%), endo-2-hydroxycineole (4%) and eugenol (0.3%). \\
 [Surburg et al., Volatile compounds from Flowers, in: Teranishi, R.;Buttery, R. G.;Sugisawa, H. Bioactive volatile compounds from plants. (Book) 1993, 169-186]  [Surburg et al., Volatile compounds from Flowers, in: Teranishi, R.;Buttery, R. G.;Sugisawa, H. Bioactive volatile compounds from plants. (Book) 1993, 169-186] 
  
  
-{{:asclepias_carnosa.jpg?500}} \\+{{:asclepias_carnosa.jpg?600}} \\
 Hoya carnosa as  Asclepias carnosa, Allgemeines teutsches Garten-Magazin, vol.7, t.2 (1810) \\ Hoya carnosa as  Asclepias carnosa, Allgemeines teutsches Garten-Magazin, vol.7, t.2 (1810) \\
 [[http://plantgenera.org/species.php?id_species=537741]] [[http://plantgenera.org/species.php?id_species=537741]]
hoya_carnosa_l.f._r.br.1466792607.txt.gz · Zuletzt geändert: 2016/06/24 18:23 von andreas

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