| Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung |
| iris_germanica_l [2018/07/31 10:48] – andreas | iris_germanica_l [2022/01/27 14:06] (aktuell) – andreas |
|---|
| [Direct enantioselective separation and olfactory evaluation of all irone isomers., Galfré, A., Martin, P., Petrzilka, M., Journal of Essential Oil Research, 5(3), 1993, 265-277] | [Direct enantioselective separation and olfactory evaluation of all irone isomers., Galfré, A., Martin, P., Petrzilka, M., Journal of Essential Oil Research, 5(3), 1993, 265-277] |
| |
| |{{:irone_pluscisgamma.jpg|(+)-cis-γ-irone}} \\ (+)-cis-γ-irone \\ //(dry sweet woody iris)//|{{:irone_pluscisalpha.jpg|(+)-cis-α-irone}} \\ (+)-cis-α-irone \\ //(fruity sweet woody iris)//| | |{{:irone_pluscisgamma.jpg|(+)-cis-γ-irone}} \\ (+)-cis-γ-irone |{{:irone_pluscisalpha.jpg|(+)-cis-α-irone}} \\ (+)-cis-α-irone |{{:irone_minuscisalpha.jpg|(-)-cis-α-irone}} \\ (-)-cis-α-irone |{{:irone_minustransgamma.jpg|(-)-trans-γ-irone}} \\ (-)-trans-γ-irone | |
| | |
| | "We also had in our hands all ten pure stereoisomers of irones. Only (-)-cis-α-irone (2S,6R) and (-)-trans-γ-irone (2S,6S) were found to possess the delicate and characteristic scent of orris butter, though the other irone samples were also described to smell pleasant of violet and woody notes." \\ |
| | [Abate, A., Brenna E., Fugant C., Gatti, FG, Serra S. "Odor and (Bio)diversity: Single Enantiomers of Chiral Fragrant Substances", in: Kraft, P., Swift KAD, Perspectives in flavor and fragrance research. John Wiley & Sons, 2005, 55-65] sse also: \\ |
| | [Brenna, Elisabetta, Claudio Fuganti, and Stefano Serra. "From commercial racemic fragrances to odour active enantiopure compounds: the ten isomers of irone." Comptes Rendus Chimie 6.5-6 (2003): 529-546] [[https://www.sciencedirect.com/science/article/pii/S1631074803000870]] |
| |
| "The essential oil of Iris florentina was extracted by hydro distillation by using Clevenger apparatus, and resinoide and absolute were obtained by using n-hexane and ethyl alcohol, respectively. Essential oil components were identified by GC/MS (QP5050 gas chromatography/mass spectrometry). Statistically non-significant differences were observed in the fresh and dry rhizome, and statistically significant differences (p<0.01) in the resinoide and absolute of Iris florentina. In the Iris florentina, the fresh and dry rhizome essential oil resinoide were determined as 0.04% and 0.07% respectively, and the resinoide and absolute were obtained as 2.21% and 1.92%, respectively. The main compounds of Iris florentina essential oil, resinoide and absolute were determined as decanoic acid, ethanon, [[http://www.leffingwell.com/chirality/alpha-irone.htm|α-irone]], [[http://www.leffingwell.com/chirality/gamma-irone.htm|trans-2,6-γ-irone]], lauric acid, myristic acid, palmitic acid, 9,12-octadecadienoic acid and hexanedioic acid bis ester. In the main components of essential oil, resinoide and absolute of iris were significant differences determined. α-irone and γ-irone contents weren't determined in fresh rhizome essential oil that they are accepted as the most significant commercial quality criteria of iris essential oil. The highest α-irone and trans-2,6-γ-irone contents were obtained in dry rhizome essential oil (4.21% and 7.88%, respectively), their the lowest values were determined in resinoide (0.69% and 1.25%, respectively)." \\ | "The essential oil of Iris florentina was extracted by hydro distillation by using Clevenger apparatus, and resinoide and absolute were obtained by using n-hexane and ethyl alcohol, respectively. Essential oil components were identified by GC/MS (QP5050 gas chromatography/mass spectrometry). Statistically non-significant differences were observed in the fresh and dry rhizome, and statistically significant differences (p<0.01) in the resinoide and absolute of Iris florentina. In the Iris florentina, the fresh and dry rhizome essential oil resinoide were determined as 0.04% and 0.07% respectively, and the resinoide and absolute were obtained as 2.21% and 1.92%, respectively. The main compounds of Iris florentina essential oil, resinoide and absolute were determined as decanoic acid, ethanon, [[http://www.leffingwell.com/chirality/alpha-irone.htm|α-irone]], [[http://www.leffingwell.com/chirality/gamma-irone.htm|trans-2,6-γ-irone]], lauric acid, myristic acid, palmitic acid, 9,12-octadecadienoic acid and hexanedioic acid bis ester. In the main components of essential oil, resinoide and absolute of iris were significant differences determined. α-irone and γ-irone contents weren't determined in fresh rhizome essential oil that they are accepted as the most significant commercial quality criteria of iris essential oil. The highest α-irone and trans-2,6-γ-irone contents were obtained in dry rhizome essential oil (4.21% and 7.88%, respectively), their the lowest values were determined in resinoide (0.69% and 1.25%, respectively)." \\ |
