Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
Beide Seiten der vorigen Revision Vorhergehende Überarbeitung Nächste Überarbeitung | Vorhergehende Überarbeitung Nächste Überarbeitung Beide Seiten der Revision | ||
narcissus_poeticus_l [2017/03/23 09:29] andreas |
narcissus_poeticus_l [2017/03/23 09:36] andreas |
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"In case of narcissus, fragrance is extracted via hexane or petroleum ether solvent from flowers resulting in 0.2-0.3% concrete or by supercritical CO2 extraction resulting in a yield of 0.41% (Ehret et al., 1992; Ferri et al., 2009). In case of solvent extraction, it takes 1000 kg of flowers to produce 2kg of concrete or 750 g of absolute and the relative low productivity of absolute from narcissus makes it an expensive product, restricted to luxury perfumes." | "In case of narcissus, fragrance is extracted via hexane or petroleum ether solvent from flowers resulting in 0.2-0.3% concrete or by supercritical CO2 extraction resulting in a yield of 0.41% (Ehret et al., 1992; Ferri et al., 2009). In case of solvent extraction, it takes 1000 kg of flowers to produce 2kg of concrete or 750 g of absolute and the relative low productivity of absolute from narcissus makes it an expensive product, restricted to luxury perfumes." | ||
- | Main floral scent constituents | + | Headspace solid-phase microextraction (HS-SPME) and GC-MS were applied to analyze flower scent. Simple and double flower cultivars showed circadian emission patterns and produced significantly less scent during the night than during |
Simple flowers: benzyl acetate (37.3%), (Z)-β-ocimene (34.8%), indole (4.6%) \\ | Simple flowers: benzyl acetate (37.3%), (Z)-β-ocimene (34.8%), indole (4.6%) \\ | ||
- | Double flowers: (Z)-β-ocimene (21.8%), benzyl acetate (19.3%), 1,8-cineole (8.8%), phenylethyl acetate (8.4%) \\ | + | Double flowers: (Z)-β-ocimene (21.8%), benzyl acetate (19.3%), 1,8-cineole (8.8%), phenylethyl acetate (8.4%), indole (2.7%) \\ |
[Optimization of fragrance extraction: daytime and flower age affect scent emission in simple and double narcissi., Ruíz-Ramón, | [Optimization of fragrance extraction: daytime and flower age affect scent emission in simple and double narcissi., Ruíz-Ramón, | ||