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--- robinia_pseudoacacia_l [2016/05/30 19:33]
andreas
+++ robinia_pseudoacacia_l [2017/03/30 12:37]
andreas
@@ Zeile 1: / Zeile 1: @@
 Robinia pseudoacacia L. - Fabaceae - black locust, false acacia, **Robinie**, Falsche Akazie, Scheinakazie
-Invasive tree, native to eastern North America, naturalized throughout the world; 15-25m high; inflorescence a pendent cluster; flowers white, scenting sweet like bergamot orange.
+Invasive tree, native to eastern North America, naturalized throughout the world; 15-25m high; inflorescence a pendent cluster; flowers white, scenting sweet bergamot-like.
 "Important constituents of the plant are the toxalbumin robin, which loses its toxicity when heated and robinin, a non-toxic glucoside." \\
 [[http://en.wikipedia.org/wiki/Robinia_pseudoacacia]]
+Major constituents of the vacuum headspace concentrate from the flowers were 2-aminobenzaldehyde (31.5%), methyl anthranilate (14.6%), linalool/phenylethanol (18% together), nerolidol (5.3%), α-farnesene (5.1%), and (E)-ocimene (4.4%). "It should be noted that the mass spectrum of 2-aminobenzaldehyde is very clos to that of formanilide proposed by most of the commercial mass spectra librabries." \\
+[Joulain, D. „Study of the fragrance given off by certain springtime flowers.“ Progress in essential oil research (1986): 57-67]
 "Black locust wood is being studied to find the chemical basis for its remarkable decay resistance. High flavonoid concentrations (6% of dry weight) are important, especially the constituents robinetin and dihydrorobinetin (Smith et al. 1989). When impregnated into easily decayed woods, heartwood extracts have raised decay resistance to a level equivalent to that attained by commercial wood preservatives (Smith et al. 1989)." \\
@@ Zeile 13: / Zeile 16: @@
 [Characterization of black locust floral fragrance. Kamdem, D. P., Gruber, K., Barkman, T., Gage, D. A., Journal of Essential Oil Research, 6(2), 1994, 199-200]
-| {{:carene_d3.jpg| δ-3-carene }} \\ δ-3-carene | {{:linalool.jpg| linalool}} \\ linalool | {{:2-aminobenzaldehyde.jpg| myrcene }} \\ 2-aminobenzaldehyde \\ (anthranilate aldehyde) |
+| {{:carene_d3.jpg| δ-3-carene }} \\ δ-3-carene | {{:linalool.jpg| linalool}} \\ linalool | {{:2-aminobenzaldehyde.jpg| 2-aminobenzaldehyde}} \\ 2-aminobenzaldehyde \\ (anthranilate aldehyde) |
 Feeding experiments with 13C- and fluorine-labelled precursors revealed that the biosynthesis of 2-aminobenzaldehyde in flowers of Robinia pseudoacacia and Philadelphus coronarius is realized by transformation of anthranilic acid to indole followed by oxidative ring opening and hydrolysis of the resulting N-formyl-2-aminobenzaldehyde. \\
@@ Zeile 28: / Zeile 31: @@
 [[http://plantgenera.org/species.php?id_species=884099]]
-{{:dsc01100k.jpg?800|}}
+{{:dsc01100k.jpg?800|}} \\
+Robinia acacia flowers, [[https://creativecommons.org/licenses/by-sa/3.0/de/|CC BY-SA 3.0]], Author: Andreas Kraska
+{{:dsc04111k.jpg?800|}} \\
+Robinia acacia flowering red, [[https://creativecommons.org/licenses/by-sa/3.0/de/|CC BY-SA 3.0]], Author: Andreas Kraska

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