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syringa_vulgaris_l [2025/10/18 07:32] – andreassyringa_vulgaris_l [2026/06/01 07:31] (aktuell) – andreas
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 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. \\
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 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
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 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). \\ 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). \\
syringa_vulgaris_l.1760772744.txt.gz · Zuletzt geändert: 2025/10/18 07:32 von andreas
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