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aniba_rosaeodora_ducke [2017/08/02 13:23]
andreas
aniba_rosaeodora_ducke [2019/08/20 14:39]
andreas
Zeile 14: Zeile 14:
  
 | {{:linalool_r.jpg| (R)-(-)-linalool }} \\ (R)-(-)-linalool |{{:terpineol_alpha.jpg|α-terpineol}} \\ α-terpineol | {{geraniol.jpg| geraniol }} \\ geraniol | | {{:linalool_r.jpg| (R)-(-)-linalool }} \\ (R)-(-)-linalool |{{:terpineol_alpha.jpg|α-terpineol}} \\ α-terpineol | {{geraniol.jpg| geraniol }} \\ geraniol |
 +
 +"For a given tree, a decreasing yield gradient was observed from trunk wood to branches, smaller branches, and leaves. Linalool percentage in oil ranged from 73–99%. All trunk wood oils contained a percentage of (-)-linalool close to 100%, except for two trees from Paracou station where a low proportion of (+)-linalool was present. Oils from small branches contained from 5–28% of (+)-linalool. All leaf oils showed a high percentage (78–89%) of (+)-linalool. The linalool form in oil from shoot, bark and root samples was purely (-)-linalool. Measures performed on different parts of the same tree showed that the linalool from trunk wood and thick branches was purely (-)-linalool, whereas the proportion of (+)-linalool increased with the thinness of the branches and reached 85% in leaves." \\
 +[Chantraine, Jean-Marie, Jean-Marie Dhénin, and Christian Moretti. "Chemical variability of rosewood (Aniba rosaeodora Ducke) essential oil in French Guiana." Journal of Essential Oil Research 21.6 (2009): 486-495]
  
 Bois de rose oils from French Guiana (Cayenne type) own a higher content of (-)-(R)-linalool than Brazilian oils, this may have been the reason why Cayenne type oils were considered as superior. An analysis of the wood scent (SPME-GC/MS) showed the main constituents to be linalool (49.1%), α-terpineol (21.3%), limonene (6.8%), and terpinolene (6.1%). \\ Bois de rose oils from French Guiana (Cayenne type) own a higher content of (-)-(R)-linalool than Brazilian oils, this may have been the reason why Cayenne type oils were considered as superior. An analysis of the wood scent (SPME-GC/MS) showed the main constituents to be linalool (49.1%), α-terpineol (21.3%), limonene (6.8%), and terpinolene (6.1%). \\
 [Scent of a vanishing flora, Roman Kaiser, 2011, 338-339] [Scent of a vanishing flora, Roman Kaiser, 2011, 338-339]
  
aniba_rosaeodora_ducke.txt · Zuletzt geändert: 2019/08/20 15:39 von andreas