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brugmansia_suaveolens_humb._bonpl._ex_willd._bercht._j.presl [2019/03/19 11:53]
andreas 		brugmansia_suaveolens_humb._bonpl._ex_willd._bercht._j.presl [2021/01/30 11:42] (aktuell)
andreas
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 Main constituents of the collected flower scent (223µg/6h) were 1.8-cineole (25.5%), methyl benzoate (18.7%), geraniol (17.9%), and α-terpineol (10.6%). Minor components were benzaldehyde (1.8%), benzyl alcohol (1.4%), sabinene (1.6%), myrcene (6.1%), limonene (3.3%), (Z)-β-ocimene (0.1%), (E)-β-ocimene (0.7%), linalool (1.0%), citronellal (0.5%), neral (0.2%), geranial (1.1%), geranyl acetate (0.1%), citronellol (0.6%), nerol (0.3%), and nerolidol (3.8%). \\ Main constituents of the collected flower scent (223µg/6h) were 1.8-cineole (25.5%), methyl benzoate (18.7%), geraniol (17.9%), and α-terpineol (10.6%). Minor components were benzaldehyde (1.8%), benzyl alcohol (1.4%), sabinene (1.6%), myrcene (6.1%), limonene (3.3%), (Z)-β-ocimene (0.1%), (E)-β-ocimene (0.7%), linalool (1.0%), citronellal (0.5%), neral (0.2%), geranial (1.1%), geranyl acetate (0.1%), citronellol (0.6%), nerol (0.3%), and nerolidol (3.8%). \\
 [Knudsen, Jette T., and Lars Tollsten. "Trends in floral scent chemistry in pollination syndromes: floral scent composition in moth‐pollinated taxa." Botanical Journal of the Linnean Society 113.3 (1993): 263-284] [Knudsen, Jette T., and Lars Tollsten. "Trends in floral scent chemistry in pollination syndromes: floral scent composition in moth‐pollinated taxa." Botanical Journal of the Linnean Society 113.3 (1993): 263-284]
 +
 +| {{1.8cineole.jpg| 1.8-cineole}} \\ 1.8-cineole| {{:benzoate.jpg|}} \\ methyl benzoate (R=Me) | {{geraniol.jpg| geraniol }} \\ geraniol | {{:citral.jpg}} \\ citral: geranial, neral| {{:indole.jpg| indole}} \\ indole |
  
 The maximum quantity of volatiles is generated by the flowers of B.suaveolens during nighttime, with a peak at around 9 p.m. (some compounds showed also their highest proportion, like geraniol 5.2%, geranial 1.9%, indole 1.8%, farnesol 1.1%, farnesal 0.5%, benzyl benzoate 0.7%, and benzyl salicylate 0.7%):\\ The maximum quantity of volatiles is generated by the flowers of B.suaveolens during nighttime, with a peak at around 9 p.m. (some compounds showed also their highest proportion, like geraniol 5.2%, geranial 1.9%, indole 1.8%, farnesol 1.1%, farnesal 0.5%, benzyl benzoate 0.7%, and benzyl salicylate 0.7%):\\
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 [Sampling flower scent for chromatographic analysis, Elena E. Stashenko, Jairo Ren Martnez, J. Sep. Sci. 2008, 31, 2022 – 2031] [Sampling flower scent for chromatographic analysis, Elena E. Stashenko, Jairo Ren Martnez, J. Sep. Sci. 2008, 31, 2022 – 2031]
  
-"The floral essential oils of Brugmansia suaveolens, from Monteverde, Costa Rica, were collected at three different times of the day by hydrodistillation and the oils analyzed by gas chromatography-mass spectrometry (GC-MS). The floral essential oil showed a dramatic change in composition between the freshly opened night (white) blossoms and the rose-colored senescent blossoms the following day. The white blossoms were dominated by 1,8-cineole (72.1%), (E)-nerolidol (11.7%), α-terpineol (5.3%), and phenethyl alcohol (3.2%), notably different from headspace analyses of B. suaveolens reported previously. The floral essential oil from "rose-colored" senescent blossoms of B. suaveolens showed dramatic decreases in 1,8-cineole (2.0%), (E)-nerolidol (1.9%), and phenethyl alcohol (not detected), with concomitant increases in heptanal (10.2%), nonanal (17.4%), terpinen-4-ol (10.5%), and [[http://www.thegoodscentscompany.com/data/rw1041871.html|megastigmatrienones]] (35.5%)." \\+"The floral essential oils of Brugmansia suaveolens, from Monteverde, Costa Rica, were collected at three different times of the day by hydrodistillation and the oils analyzed by gas chromatography-mass spectrometry (GC-MS). The floral essential oil showed a dramatic change in composition between the freshly opened night (white) blossoms and the rose-colored senescent blossoms the following day. The white blossoms were dominated by 1,8-cineole (72.1%), (E)-nerolidol (11.7%), α-terpineol (5.3%), and phenethyl alcohol (3.2%), notably different from headspace analyses of B. suaveolens reported previously. The floral essential oil from "rose-colored" senescent blossoms of B. suaveolens showed dramatic decreases in 1,8-cineole (2.0%), (E)-nerolidol (1.9%), and phenethyl alcohol (not detected), with concomitant increases in heptanal (10.2%), nonanal (17.4%), terpinen-4-ol (10.5%), and megastigmatrienones (35.5%)." \\
 [Composition of the floral essential oil of //Brugmansia suaveolens//. Anthony, S. J., Zuchowski, W., Setzer, W. N., Records of Natural Products, Vol.3(2), 2009, 76-81] [[http://www.acgpubs.org/RNP/2009/Volume%203/Issue%201/9_RNP-0812-62.pdf?origin=publication_detail]] [Composition of the floral essential oil of //Brugmansia suaveolens//. Anthony, S. J., Zuchowski, W., Setzer, W. N., Records of Natural Products, Vol.3(2), 2009, 76-81] [[http://www.acgpubs.org/RNP/2009/Volume%203/Issue%201/9_RNP-0812-62.pdf?origin=publication_detail]]
  
-{{:brugmansia_suaveolens.jpg?800}} \\+{{:brugmansia_suaveolens.jpg}} \\
 Brugmansia suaveolens flowering, [[https://creativecommons.org/licenses/by-sa/3.0/de/|CC BY-SA 3.0]], Author: Andreas Kraska Brugmansia suaveolens flowering, [[https://creativecommons.org/licenses/by-sa/3.0/de/|CC BY-SA 3.0]], Author: Andreas Kraska
brugmansia_suaveolens_humb._bonpl._ex_willd._bercht._j.presl.1552992812.txt.gz · Zuletzt geändert: 2019/03/19 11:53 von andreas

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