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--- boronia_megastigma_nees_ex_bartl [2015/07/20 00:31]
andreas
+++ boronia_megastigma_nees_ex_bartl [2015/07/20 11:48]
andreas
@@ Zeile 3: / Zeile 3: @@
 Erect shrub, up to 2m tall, native to Western Asutralia, cultivated there; laeves linear, dark green, up to 1.5cm long; flowers dark reddish-purple to brown externally and bright yellow inside. \\
 [[http://florabase.dpaw.wa.gov.au/browse/profile/4428]]
+Constituents of the absolute of B.megastigma from Tasmania were β-ionone and many of its derivatives like 7,8-dihydro—β-ionone, 7,8-dihydro—β—ionol, 4-oxo-β—ionone, 4-hydroxy-β—ionone, 4-oxo-β—ionol, and 3-hydroxy-β-ionone as well as isomeric 3-hydroxymegastigm-7-en-9-ones and megastigm-7-ene-3,9-dione. Furthermore, methyl (Z,E)-4-(geranyloxy)cinnamates, methyl (Z,E)-4-(5-hydroxy-geranyloxy)-cinnamates, alkyl esters of 8-hydroxylinalool, and N-[2-(4-prenyloxyphenyl)ethyl]tiglamide were identified. \\
+[Megastigmanes and other constituents of the absolute of Boronia megastigma from Tasmania., Weyerstahl, P., Marschall, H., Bork, W.R., Rilk, R., Liebigs Annalen der Chemie, 1994(10), 1043-1047] \\
+[Constituents of the absolute of Boronia megastigma Nees. from Tasmania., Weyerstahl, P., Marschall, H., Bork, W.R., Rilk, R., Schneider, S., Wahlburg, H.C., Flavour and fragrance journal, 10(5), 1995, 297-311]
+In freshly open flowers, principle components were β-ionone (115-1092µg per g f.w.), dodecyl acetate (112-631µg), α-pinene (0-138µg) and β-pinene (0-109µg). Ethanolic extracts of petals and stigmas containing mostly β-ionone, dodecyl acetate and  (Z)-heptadec-8-ene, whereas ovaries providing mostly α-pinene and β-pinene. \\
+[Flower and volatile oil ontogeny in Boronia megastigma., Bussell, B.M., Considine, J.A., Spadek, Z.E., Annals of Botany, 76(5), 1995, 457-463] [[http://aob.oxfordjournals.org/content/76/5/457.full.pdf]]
 "Boronia megastigma Nees. (brown boronia, family Rutaceae) is an endemic shrub grown commercially in Tasmania for production of a highly valued floral extract. The strongly perfumed red-brown and golden boronia flowers are harvested in September. A yellow-brown waxy concrete is extracted from the flowers to yield between 0.3
@@ Zeile 9: / Zeile 16: @@
 and raspberries emerge before finishing with a slightly spicy-herbaceous (cinnamon and tobacco leaf), woody dry-out (Guenther, 1974; Roberts, 1984; Weyerstahl et al., 1994)... β-ionone, dodecyl acetate and (Z)-heptadec-8-ene occurred in extract from all five develelopment stages..." \\
 [The Effect of Flower Maturity and Harvest Timing on Floral Extract fromBoronia megastigma (Nees)., Mactavish, H.S., Menary, R.C., Annals of Botany, 80(3), 1997, 299-303] [[http://aob.oxfordjournals.org/content/80/3/299.full.pdf]]
 {{:boronia_megastigma.jpg?500}} \\
 Curtis’s Botanical Magazine, vol.99 [ser.3, vol.29] t.6046 (1873) [W.H.Fitch] \\
 [[http://plantgenera.org/species.php?id_species=150942]]

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