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--- polianthes_tuberosa_l [2017/09/05 20:47] – andreas
+++ polianthes_tuberosa_l [2023/05/10 20:59] (aktuell) – andreas
@@ Zeile 4: / Zeile 4: @@
 "Tuberose has a high reputation in perfumery. The plants are cultivated in Morocco, Egypt and India. A tuberose absolute was formerly produced in southern France by enfleurage (by enfleurage the volatiles from the freshly picked flowers are absorbed in paraffin shavings with subsequent alcoholic extraction), but now it is obtained by solvent extraction, via the concrete (see boronia for a description of this process). The absolute is a dark orange to brown viscous liquid with an extremely heavy-sweet, narcotic-floral and somewhat spicy odour reminiscent of honeysuckle, peru balsam, neroli, stephanotis, etc." [[http://www.bojensen.net/EssentialOilsEng/EssentialOils30/EssentialOils30.htm]]
+Together with the saturated (R)-delta decalactone, tuberose absolute contained some unsaturated lactones like (S)-jasmine lactone, (R)-tuberolactone and (R)-massoialactone. \\
+[Kaiser R., Lamparsky D., Tetrahedron Lett. 20, 1659, (1976)] \\ see also
+[[https://patentimages.storage.googleapis.com/b6/85/13/8e7109a8ca0d9d/WO1994007887A1.pdf]]
 "Six unsaturated γ-lactones, (Z)-5-octen-4-olide, (Z)-5-decen-4-olide, (Z)-6-nonen-4-olide, (Z)-6-dodecen-4-olide, (Z,Z)-6,9-dodecadien-4-olide, and tuberolide have been identified for the first time in tuberose absolute (from Polianthes tuberosa L.)." \\
@@ Zeile 9: / Zeile 14: @@
 [Identification and Synthesis of New γ‐Lactones from Tuberose Absolute (Polianthes tuberosa)., Maurer, B., Hauser, A., Helvetica Chimica Acta, 65(2), 1982, 462-476]
-There were major differences between the volatiles (headspace, Tenax) emitted from living tuberose flowers during the day and at night: Limonene (day 8% /night 14%), methyl salicylate (12%/6%), α-terpineol (11%/3.5%), methyl anthranilate (1%/3%), [[http://www.thegoodscentscompany.com/data/rw1023991.html|jasmin lactone]] (0.2%/1%), δ-dodecalactone (0.1%/0.6%). \\
+There were major differences between the volatiles (headspace, Tenax) emitted from living tuberose flowers during the day and at night: Limonene (day 8% /night 14%), methyl salicylate (12%/6%), α-terpineol (11%/3.5%), methyl anthranilate (1%/3%), jasmin lactone (0.2%/1%), δ-dodecalactone (0.1%/0.6%). \\
 [The chemistry of flowers, fruits and spices: live vs. dead-a new dimension in fragrance research., Mookherjee, B.D., Trenkle, R.W., Wilson, R.A., Pure and Applied Chemistry, 62(7), 1990, 1357-1364]
@@ Zeile 18: / Zeile 23: @@
 [Mathematical modelling of supercritical CO 2 fractionation of flower concretes., Reverchon, E., Poletto, M., Chemical Engineering Science, 51(15), 1996, 3741-3753]
-Yields of tuberose oil were: Cold enfleurage 0.3%, hot enfleurage 6.5%, hexane extract 0.028 and petroleum  ether extract 0.018%. Components of the cold enfleurage absolute were methyl benzoate (30.1%), benzyl benzoate (23.6%), [[http://www.thegoodscentscompany.com/data/rw1038021.html|(Z)-7-decen-5-olide (jasmolactone)]] (13.3%), methyl salicylate (12.1%), methyl isoeugenol (8.8%), methyl anthranilate (4.4%), beta-farnesene (2.4%), methyl eugenol (1.8%), indole (1.7%), and citral (1.4%). \\
+Yields of tuberose oil were: Cold enfleurage 0.3%, hot enfleurage 6.5%, hexane extract 0.028% and petroleum  ether extract 0.018%. Components of the cold enfleurage absolute were methyl benzoate (30.1%), benzyl benzoate (23.6%), 7-decen-5-olide (13.3%), methyl salicylate (12.1%), methyl isoeugenol (8.8%), methyl anthranilate (4.4%), beta-farnesene (2.4%), methyl eugenol (1.8%), indole (1.7%), and citral (1.4%). \\
 "Main chemical component detected in both enfleurage absolutes was methyl benzoate, while benzyl benzoate and pentacosane were found to be the main chemical components in hexane and petroleum ether absolutes, respectively." \\
 [Extraction Methods for Tuberose Oil and Their Chemical Components. Prapassorn Rakthaworn, Uraiwan Dilokkunanant, et al. Kasetsart J. (Nat. Sci.) 43 : 204 - 211 (2009)] [[http://kasetsartjournal.ku.ac.th/kuj_files/2010/a1003081301504218.pdf]]
@@ Zeile 30: / Zeile 35: @@
 Edwards, S., Botanical Register, vol.1 t.63 (1815) \\
 [[http://plantgenera.org/species.php?id_species=818646]]
+VIDEO: [[https://youtu.be/g2jDwKQdt6A|Tuberose from India]] (IFF-LMR)