Benutzer-Werkzeuge

Webseiten-Werkzeuge


juniperus_virginiana_l

Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

Link zu dieser Vergleichsansicht

Beide Seiten der vorigen Revision Vorhergehende Überarbeitung
juniperus_virginiana_l [2017/08/16 20:51]
andreas
juniperus_virginiana_l [2021/03/26 15:27] (aktuell)
andreas
Zeile 20: Zeile 20:
 Small trees have relatively low amounts of CWO because small trees have high percentages of sapwood which contains very low amounts of CWO compared to the heartwood"\\ Small trees have relatively low amounts of CWO because small trees have high percentages of sapwood which contains very low amounts of CWO compared to the heartwood"\\
 [Critical fluid extraction of //Juniperus virginiana// L. and bioactivity of extracts against subterranean termites and wood-rot fungi. Eller, F. J., Clausen, C. A., Green, F., & Taylor, S. L., Industrial crops and products, Vol.32(3), 2010, 481-485] [Critical fluid extraction of //Juniperus virginiana// L. and bioactivity of extracts against subterranean termites and wood-rot fungi. Eller, F. J., Clausen, C. A., Green, F., & Taylor, S. L., Industrial crops and products, Vol.32(3), 2010, 481-485]
 +
 +----
  
 "α-Cedrene and thujopsene are the main products of the sesquiterpene fraction of red cedarwood oil (Juniperus virginiana L., Cupressaceae). While these sesquiterpenes possess only weak and uncharacteristic odors, some oxygenated derivatives are widely used in perfumery. The most important volume is the acetylation product of the sequiterpene fraction, sold under trade names such as //Vertofix Coeur (IFF)//, //Lignofix (Symrise)//, and //Cedartone V (Givaudan)//. It possesses an intense woody, ambery odor, which is attributed to a content of 5-10% of [1-aceto-7,10-ethano-4,4,7-trimethyl-1(9)-octalin, [[http://www.thegoodscentscompany.com/data/rw1046821.html|CAS 32388-56-0]]] ...\\ "α-Cedrene and thujopsene are the main products of the sesquiterpene fraction of red cedarwood oil (Juniperus virginiana L., Cupressaceae). While these sesquiterpenes possess only weak and uncharacteristic odors, some oxygenated derivatives are widely used in perfumery. The most important volume is the acetylation product of the sequiterpene fraction, sold under trade names such as //Vertofix Coeur (IFF)//, //Lignofix (Symrise)//, and //Cedartone V (Givaudan)//. It possesses an intense woody, ambery odor, which is attributed to a content of 5-10% of [1-aceto-7,10-ethano-4,4,7-trimethyl-1(9)-octalin, [[http://www.thegoodscentscompany.com/data/rw1046821.html|CAS 32388-56-0]]] ...\\
Zeile 26: Zeile 28:
 [Acid-catalyzed isomerization of thujopsene., Kitchens, G. C., Daeniker, H. U., Hochstetler, A. R., Kaiser, K., The Journal of Organic Chemistry, Vol.37(1), 1972, 1-5] \\ [Acid-catalyzed isomerization of thujopsene., Kitchens, G. C., Daeniker, H. U., Hochstetler, A. R., Kaiser, K., The Journal of Organic Chemistry, Vol.37(1), 1972, 1-5] \\
 [Acetylation of thujopsene., Kitchens, G.C., Daeniker, H.U., Hochstetler, A.R., Kaiser, K., Blount, J. F., The Journal of Organic Chemistry, 37(1), 1972, 6-8] [Acetylation of thujopsene., Kitchens, G.C., Daeniker, H.U., Hochstetler, A.R., Kaiser, K., Blount, J. F., The Journal of Organic Chemistry, 37(1), 1972, 6-8]
 +
 +"As cedarwood oil (Juniperus virginiana L.) is a by-product of the American timber industry, it is one of the most economical and abundant sources of sesquiterpenes. This makes it an attractive starting material for the synthesis of other odorants like Vertofix®. On the other hand, any attempt to introduce a new cedarwood odorant is a lost cause, simply because cedarwood oil is so inexpensive. (+)-Cedrol (155) is responsible for its soft, woody odour, typical of cedarwood, and it is isolated from the oil by fractional distillation followed by crystallization." \\
 +[Fráter, Georg, Jerzy A. Bajgrowicz, and Philip Kraft. „Fragrance chemistry.“ Tetrahedron 54.27 (1998): 7633-7703]
  
 {{:juniperus_virginiana.jpg?600}} \\ {{:juniperus_virginiana.jpg?600}} \\
juniperus_virginiana_l.1502909514.txt.gz · Zuletzt geändert: 2017/08/16 20:51 von andreas