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chrysopogon_zizanioides_l._roberty [2017/08/11 12:01]
andreas
chrysopogon_zizanioides_l._roberty [2018/06/14 14:07] (aktuell)
andreas
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 [Vetivone and Khusimone: the Puzzling Vetiver Oil Components.,​ Zviely, M., Perfumer & flavorist, 37(2), 2012, 46-50] [Vetivone and Khusimone: the Puzzling Vetiver Oil Components.,​ Zviely, M., Perfumer & flavorist, 37(2), 2012, 46-50]
  
-"The essential oils isolated from vetiver [Vetiveria zizanioides (L.) Nash.] roots collected from four locations in south India were analyzed by GC-FID and GC-MS. Eighty constituents,​ representing 94.5-97.8% of the oils, have been identified. The oils from Bangalore, Hyderabad, Kundapur, and Mettupalayam were rich in sesquiterpenes and oxygenated sesquiterpenes with cedrane, bisabolane, eudesmane, eremophilane,​ and zizaane skeletons. ​The main components of the four essential oils were: eudesma-4,​6-diene (delta-selinene) + beta-vetispirene (3.9-6.1%), beta-vetivenene (0.9-9.4%), 13-nor-trans-eudesma-4(15),​7-dien-11-one + amorph-4-en-10-ol (5.0-6.4%), trans-eudesma-4(15),​7-dien-12-ol (vetiselinenol) + (E)-opposita-4(15),​7(11)-dien-12-ol (3.7-5.9%), eremophila-1 (10),​11-dien-2alpha-ol (nootkatol) + ziza-6(13)-en-12-ol (khusimol) (16.1-19.2%),​ and eremophila-1(10),​7(11)-dien-2alpha-ol (isonootkatol) + (E)-eremophila-1(10),​7(11)-12-ol (isovalencenol) (5.6-6.9%). The important compounds that impart the characteristic vetiver ​odor are: khusimene, ​delta-selinene, ​beta-vetivenene,​ cyclocopacamphan-12-ol (epimers A and B), vetiselinenol,​ khusimol, isovalencenol,​ khusimone, ​alpha-vetivone, and beta-vetivone. The chemical profiles of the oils are comparable to Haitian vetiver oil." \\+"The main components of the... essential oils were: eudesma-4,​6-diene (delta-selinene) + beta-vetispirene (3.9-6.1%), beta-vetivenene (0.9-9.4%), 13-nor-trans-eudesma-4(15),​7-dien-11-one + amorph-4-en-10-ol (5.0-6.4%), trans-eudesma-4(15),​7-dien-12-ol (vetiselinenol) + (E)-opposita-4(15),​7(11)-dien-12-ol (3.7-5.9%), eremophila-1 (10),​11-dien-2alpha-ol (nootkatol) + ziza-6(13)-en-12-ol (khusimol) (16.1-19.2%),​ and eremophila-1(10),​7(11)-dien-2alpha-ol (isonootkatol) + (E)-eremophila-1(10),​7(11)-12-ol (isovalencenol) (5.6-6.9%)... 
 +The characteristic ​components of south Indian ​vetiver ​oils are: ziza-6(13)-ene (khusimene)δ-selinene, ​β-vetivenene,​ cyclocopacamphan-12-ol (epimers A and B), vetiselinenol,​ khusimol, isovalencenol,​ khusimone, ​α-vetivone, and β-vetivone. The pleasant odor of the oil is highly complex. The primary alcohols cyclocopacamphanols A and B, khusimol, vetiselinenol,​ and isovalencenol contribute to the woody note. 
 +The norketone khusimone imparts a rhubarb-grapefruit like odor. The ketone α-vetivone possesses a strong grapefruit odor. β-Vetivone displays grapefruit and woody notes. Thus, the highly complex odor of vetiver oil is due to the presence of several organoleptically important compounds... The chemical profiles of the oils are comparable to Haitian vetiver oil." \\
 [Constituents of south Indian vetiver oils., Mallavarapu,​ G.R., Syamasundar,​ K.V., Ramesh, S., Rao, B.R., Natural product communications,​ 7(2), 2012, 223-225] [Constituents of south Indian vetiver oils., Mallavarapu,​ G.R., Syamasundar,​ K.V., Ramesh, S., Rao, B.R., Natural product communications,​ 7(2), 2012, 223-225]
  
chrysopogon_zizanioides_l._roberty.txt · Zuletzt geändert: 2018/06/14 14:07 von andreas