Tinkturenpresse

Benutzer-Werkzeuge

Webseiten-Werkzeuge

Zuletzt angesehen:
syringa_vulgaris_l

Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

Link zu dieser Vergleichsansicht

Beide Seiten der vorigen RevisionVorhergehende Überarbeitung
Nächste Überarbeitung		Vorhergehende Überarbeitung
syringa_vulgaris_l [2022/05/29 11:50] – andreassyringa_vulgaris_l [2026/06/01 07:31] (aktuell) – andreas
Zeile 2: Zeile 2:
  
 Deciduous shrub, 2-10m tall, native to Southeast Europe, cultivated since ancient times, now distributed all over the temperate zones; leaves entire, oval, subcordate, 5-10 cm long; flowers scented, corolla tube narrowly cylindric, lilac, white, azure, or red; fruit a smooth brown capsule. Deciduous shrub, 2-10m tall, native to Southeast Europe, cultivated since ancient times, now distributed all over the temperate zones; leaves entire, oval, subcordate, 5-10 cm long; flowers scented, corolla tube narrowly cylindric, lilac, white, azure, or red; fruit a smooth brown capsule.
-[[http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=220013210]]+[[http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=220013210|efloras.org]]
  
 (E)-Ocimene and (Z)-ocimene were the most prominent compounds present in the headspace of lilac flowers, other main components were e.g. α-pinene, β-pinene, 1,4-dimethoxybenzene, and linalool. Minor components included camphene, limonene, camphor, β-bourbonene, 4-methylanisole, phenylacetaldehyde, estragole, 4-methyl acetophenone, 2-methoxybenzyl methyl ether, methyl eugenol, 1,2,4-trimethoxybenzene, piperonal, benzyl tiglate, (Z)-hexenyl benzoate, and indole. \\ (E)-Ocimene and (Z)-ocimene were the most prominent compounds present in the headspace of lilac flowers, other main components were e.g. α-pinene, β-pinene, 1,4-dimethoxybenzene, and linalool. Minor components included camphene, limonene, camphor, β-bourbonene, 4-methylanisole, phenylacetaldehyde, estragole, 4-methyl acetophenone, 2-methoxybenzyl methyl ether, methyl eugenol, 1,2,4-trimethoxybenzene, piperonal, benzyl tiglate, (Z)-hexenyl benzoate, and indole. \\
Zeile 14: Zeile 14:
 Major constituents of the vacuum headspace concentrate from the flowers were (E)-ocimene (38%), 1,4-dimethoxybenzene (9.7%), (Z)-3-hexenol (9.5%), lilac aldehydes (7.8%), lilac alcohols (4%), anisaldehyde (2.4%), and indole (1.8%). Minor amounts of unusual ethers were present: 1,2,4-trimethoxybenzene (0.5%), methylbenzylether (0.1%), 1,2-dimethoxybenzene (tr), and 2-methoxymethylanisole (tr). \\ Major constituents of the vacuum headspace concentrate from the flowers were (E)-ocimene (38%), 1,4-dimethoxybenzene (9.7%), (Z)-3-hexenol (9.5%), lilac aldehydes (7.8%), lilac alcohols (4%), anisaldehyde (2.4%), and indole (1.8%). Minor amounts of unusual ethers were present: 1,2,4-trimethoxybenzene (0.5%), methylbenzylether (0.1%), 1,2-dimethoxybenzene (tr), and 2-methoxymethylanisole (tr). \\
 [Joulain, D. „Study of the fragrance given off by certain springtime flowers.“ Progress in essential oil research (1986): 57-67]  [Joulain, D. „Study of the fragrance given off by certain springtime flowers.“ Progress in essential oil research (1986): 57-67] 
 +
 +The headspace of purple lilac flowers contained indole (2.3% living; 1.5% picked) \\
 +[Mookherjee, B. D., and Richard A. Wilson. „Tobacco constituents: Their importance in flavor and fragrance chemistry.“ Perfum. Flavor 15.1 (1990): 27-49]
  
 The bark of S.vulgaris contains [[http://de.wikipedia.org/wiki/Syringin|syringin]], the "peculiarly disgusting, more sweet and scratching than bitter" tasting glucoside of sinapyl alcohol (precursor to lignin or lignans). \\ The bark of S.vulgaris contains [[http://de.wikipedia.org/wiki/Syringin|syringin]], the "peculiarly disgusting, more sweet and scratching than bitter" tasting glucoside of sinapyl alcohol (precursor to lignin or lignans). \\
Zeile 19: Zeile 22:
 Syringin enhanced glucose utilization and lowered plasma glucose level in rats suffering artificially from insulin deficiency. \\ Syringin enhanced glucose utilization and lowered plasma glucose level in rats suffering artificially from insulin deficiency. \\
 [Hypoglycemic Effect of Syringin from Eleutherococcus senticosus in Streptozotocin-Induced Diabetic Rats., Ho-Shan Niu, I-Min Liu, Juei-Tang Cheng, Che-Ling Lin, Feng-Lin Hsu, Planta Medica. Vol.74, 2008, 109-113] [Hypoglycemic Effect of Syringin from Eleutherococcus senticosus in Streptozotocin-Induced Diabetic Rats., Ho-Shan Niu, I-Min Liu, Juei-Tang Cheng, Che-Ling Lin, Feng-Lin Hsu, Planta Medica. Vol.74, 2008, 109-113]
 +
 +Gas chromatographic separation of all possible stereoisomers of lilac aldehyde and lilac alcohol showed that only four of each stereoisomers actually occurring in lilac. \\
 +[Synthesis, structure elucidation, and olfactometric analysis of lilac aldehyde and lilac alcohol stereoisomers., Kreck, M., Mosandl, A., Journal of agricultural and food chemistry, Vol.51(9), 2003, 2722-2726]
  
 "The floral aroma of S. vulgaris variginata consists largely of aromatic aldehydes (benzaldehyde, phenylacetaldehyde, and p-anisaldehyde), an aromatic alcohol (2-phenylethyl alcohol), an aromatic ether (benzyl methyl ether), monoterpene aldehydes ([[http://www.leffingwell.com/chirality/lilacaldehyde.htm|lilac aldehyde]] and its isomer), monoterpene alcohols "The floral aroma of S. vulgaris variginata consists largely of aromatic aldehydes (benzaldehyde, phenylacetaldehyde, and p-anisaldehyde), an aromatic alcohol (2-phenylethyl alcohol), an aromatic ether (benzyl methyl ether), monoterpene aldehydes ([[http://www.leffingwell.com/chirality/lilacaldehyde.htm|lilac aldehyde]] and its isomer), monoterpene alcohols
Zeile 25: Zeile 31:
  
 Lilac flowers emitted (ng/min) mainly (E)-β-ocimene (117), 1,4-dimethoxy benzene (80), and lilac aldehyde A (17), accompanied by  benzaldehyde (13), benzyl methyl ether (13), (Z)-β-ocimene (11), lilac alcohols (9), acetophenone (4), (S)-(+)-linalool (5), lilac aldehyde B (3), estragole (3), 4-methylanisole (1), benzyl alcohol (2) and traces of phenylacetaldehyde.\\ Lilac flowers emitted (ng/min) mainly (E)-β-ocimene (117), 1,4-dimethoxy benzene (80), and lilac aldehyde A (17), accompanied by  benzaldehyde (13), benzyl methyl ether (13), (Z)-β-ocimene (11), lilac alcohols (9), acetophenone (4), (S)-(+)-linalool (5), lilac aldehyde B (3), estragole (3), 4-methylanisole (1), benzyl alcohol (2) and traces of phenylacetaldehyde.\\
-[Floral to green: mating switches moth olfactory coding and preference. Saveer, Ahmed M., et al., Proceedings of the Royal Society B: Biological Sciences (2012): rspb20112710.] \\ +[[http://rspb.royalsocietypublishing.org/content/early/2012/02/01/rspb.2011.2710.full.html|Floral to green: mating switches moth olfactory coding and preference. Saveer, Ahmed M., et al., Proceedings of the Royal Society B: Biological Sciences (2012): rspb20112710.]] 
-[[http://rspb.royalsocietypublishing.org/content/early/2012/02/01/rspb.2011.2710.full.html]]+ 
 +The major naturally occurring (5′S)-stereoisomers of lilac aldehydes (sweet, fresh, flowery, pleasant; ODT 0.2-0.4ng/L) have a lower odour threshold by 1-2 orders of magnitude in comparison to lilac aldehydes with (5′R)-absolute configuration (fresh, flowery; ODT 4-20ng/L). \\ 
 +[Dacho, Vladimír, and Peter Szolcsányi. "Synthesis and olfactory properties of seco-analogues of lilac aldehydes." Molecules 26.23 (2021): 7086.] 
  
 {{:lilac_vulgaris.jpg?600}} \\ {{:lilac_vulgaris.jpg?600}} \\
Zeile 34: Zeile 42:
  
 {{:syringavgern2022.jpg}} \\ {{:syringavgern2022.jpg}} \\
-Lilac - Syringia vulgaris, [[https://creativecommons.org/licenses/by-sa/3.0/de/|CC BY-SA 3.0]], Author: Andreas Kraska+Lilac [[https://creativecommons.org/licenses/by-sa/3.0/de/|CC BY-SA 3.0]], Author: Andreas Kraska
syringa_vulgaris_l.1653825008.txt.gz · Zuletzt geändert: 2022/05/29 11:50 von andreas
Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki