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Vorhergehende Überarbeitung
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rosa_rugosa_thunb [2020/05/15 09:35]
andreas |
rosa_rugosa_thunb [2021/07/25 09:26] (aktuell)
andreas |
| The pulp of the dog rose hips rose provides jam, the remaining peel and seeds are dried and brewed to an aromatic tea. \\ | The pulp of the dog rose hips rose provides jam, the remaining peel and seeds are dried and brewed to an aromatic tea. \\ |
| [[http://de.wikipedia.org/wiki/Rosa_rugosa]] | [[http://de.wikipedia.org/wiki/Rosa_rugosa]] |
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| | Main components of the headspace of Rosa rugosa rubra flowers collected on Tenax were phenylethanol (53.9%), citronellol (16.8%), geraniol (5.6%), and phenylethyl acetate (2.1%). Minor components were e.g. benzaldehyde (0.6%), geranial (0.5%), nonanal (0.3%), decanal (0.2%), rose oxides (0.4%), and methyleugenol (0.6%). \\ |
| | [Flament, I., C. Debonneville, and A. Furrer. "Volatile constituents of roses: characterization of cultivars based on the headspace analysis of living flower emissions." chapter in: Volatile compounds from Flowers, Teranishi, R.;Buttery, R. G.;Sugisawa, H. Bioactive volatile compounds from plants. (Book) 1993, 269-281] |
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| | | {{:phenylethanol.jpg| 2-phenylethanol}} \\ 2-phenylethanol| {{citronellol.jpg| citronellol }} \\ citronellol| {{geraniol.jpg| geraniol }} \\ geraniol|{{:phenylethylacetate.jpg|2-phenylethyl acetate}} \\ 2-phenylethyl acetate | |
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| "Floral fragrance is mainly emitted from the petals. The major fragrance components are citronellol, geraniol and nerol, but more than 10 other monoterpenes have been found each of which constitutes more than 0.05% relative abundance (Georgiev et al. 1980; Hashidoko 1996). However, the composition of volatile compounds in different flower parts is clearly distinct. A significant part of the compounds is associated with anthers or pollen, including pollen kitt (Dobson et al. 1987, 1990). Thus, while the separate floral parts contribute differently to the whole-flower fragrance, each seems to play a distinct role in the partial processes of pollination, i.e. attraction of pollinators, signalling a food resource and guidance within the flower (Dobson et al. 1990). The compound methyleugenol, which is mainly located in the pollen, was shown experimentally to be an attractant of bumblebees, which are important pollinators." \\ | "Floral fragrance is mainly emitted from the petals. The major fragrance components are citronellol, geraniol and nerol, but more than 10 other monoterpenes have been found each of which constitutes more than 0.05% relative abundance (Georgiev et al. 1980; Hashidoko 1996). However, the composition of volatile compounds in different flower parts is clearly distinct. A significant part of the compounds is associated with anthers or pollen, including pollen kitt (Dobson et al. 1987, 1990). Thus, while the separate floral parts contribute differently to the whole-flower fragrance, each seems to play a distinct role in the partial processes of pollination, i.e. attraction of pollinators, signalling a food resource and guidance within the flower (Dobson et al. 1990). The compound methyleugenol, which is mainly located in the pollen, was shown experimentally to be an attractant of bumblebees, which are important pollinators." \\ |
