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--- polianthes_tuberosa_l [2017/09/06 13:47] – 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 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)