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--- boronia_megastigma_nees_ex_bartl [2015/07/20 11:48]
andreas
+++ boronia_megastigma_nees_ex_bartl [2015/07/20 12:07]
andreas
@@ Zeile 4: / Zeile 4: @@
 [[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. \\
+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]
@@ Zeile 10: / Zeile 10: @@
 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]]
+"Essential oils are extracted from the flowers with hexane to yield about 0.4%-0.8% concrete. Concrete is washed with alcohol or distilled to yield 60% boronia absolute...  It can be used in perfumes, cosmetics, and as a food flavoring where it enhances most fruit essences... ß-Ionone was the major essential oil component, followed by dodecyl acetate. α-Pinene and limonene were often present in similar quantities, and ß-pinene was usually the least abundant of the oil components examined. The mean quantity of oil components varied considerably between populations. α-pinene, ß-pinene and limonene were commonly absent from individual plants, but each of these compounds was present in at least one plant in each population. Location had some influence on the content of the monoterpene hydrocarbons. Southeastern populations had quite high concentrations of α-pinene, ß-pinene, and limonene, while northern populations all had low concentrations." \\
+[Selection of Boronia for essential oils and cut flowers., Plummer, J.A., J.M. Wann, J.A. Considine, and Z.E. Spadek., 1996, 602-609. In: J. Janick (ed.), Progress in new crops. ASHS Press, Arlington, VA. ] [[https://www.hort.purdue.edu/newcrop/proceedings1996/v3-602.html]]
 "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 16: / Zeile 19: @@
 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]]
+"While aroma constituents formed from carotenoids are perhaps the most important to the aroma of boronia, the absolute also contains a number of linalool related materials (linalool, linalyl acetate and a series of 8-hydroxylinalool esters) and compounds in the methyl jasmonate series... that undoubtedly impact the odor profile substantially." \\
+[Boronia, A Review by John C. Leffingwell, Leffingwell Reports, Vol.2 (No.4), October, 2002] [[http://www.leffingwell.com/boronia.htm]]

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