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chrysopogon_zizanioides_l._roberty [2017/07/11 19:23]
andreas
chrysopogon_zizanioides_l._roberty [2018/06/14 14:07]
andreas
Zeile 26: Zeile 26:
 [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]
  
Zeile 42: Zeile 44:
 2-methylfuran-3‐thiol (meaty, nutty), guaiacol (earthy, leek-like), p-ethylphenol (leather-like, burnt), p-vinylphenol (metallic, phenolic), p-vinylguaiacol (smoky, warm), β-damascenone (fruity sweet, plum‐like), vanillin (vanilla-like), geosmin (earthy, muddy), (E)‐isoeugenol (clove‐like, smoky), dihydroeugenol (dill‐like, coconut), β-vetivenene (carrot‐like, flowery), β-elemol (carrot‐like, pelargonium‐like), cyclocopacamphanal (marine, aqueous), khusimone (vetiver‐like, grapefruit, flowery), ziza‐6(13)‐en‐3‐one (vetiver, woody, fruity), ziza‐6(13)‐en‐3‐α‐ol (vetiver‐like, cedarwood), 2‐epi‐ziza‐6(13)‐en‐3‐one (vetiver, fruity, sour), khusian‐2‐ol (fruity, sweet, woody), β-vetivol  2-methylfuran-3‐thiol (meaty, nutty), guaiacol (earthy, leek-like), p-ethylphenol (leather-like, burnt), p-vinylphenol (metallic, phenolic), p-vinylguaiacol (smoky, warm), β-damascenone (fruity sweet, plum‐like), vanillin (vanilla-like), geosmin (earthy, muddy), (E)‐isoeugenol (clove‐like, smoky), dihydroeugenol (dill‐like, coconut), β-vetivenene (carrot‐like, flowery), β-elemol (carrot‐like, pelargonium‐like), cyclocopacamphanal (marine, aqueous), khusimone (vetiver‐like, grapefruit, flowery), ziza‐6(13)‐en‐3‐one (vetiver, woody, fruity), ziza‐6(13)‐en‐3‐α‐ol (vetiver‐like, cedarwood), 2‐epi‐ziza‐6(13)‐en‐3‐one (vetiver, fruity, sour), khusian‐2‐ol (fruity, sweet, woody), β-vetivol 
 (intensely rosy, citrus‐like), khusimol (vetiver‐like), (E)‐isovalencenol (sandalwood‐like), spiroveta‐3,7(11)‐dien‐12‐ol (baked apple, soft‐fruit), nootkatone (grapefruit‐like, bitter, sour), β-vetivone (grapefruit‐like, fruity), α-vetivone (lime‐like, hesperidic, rosy, exotic fruit). \\ (intensely rosy, citrus‐like), khusimol (vetiver‐like), (E)‐isovalencenol (sandalwood‐like), spiroveta‐3,7(11)‐dien‐12‐ol (baked apple, soft‐fruit), nootkatone (grapefruit‐like, bitter, sour), β-vetivone (grapefruit‐like, fruity), α-vetivone (lime‐like, hesperidic, rosy, exotic fruit). \\
-From 16 odor-active constituents of vetiveryl acetate (ex Haitian vetiver oil), 8 were identified (khusimone, ziza‐6(13)‐en‐3‐one, 2‐epi‐ziza‐6(13)‐en‐3‐one, khusian-2-ol, 12‐nor‐ziza‐6(13)‐en‐2α‐yl acetate (vetiver‐like, grapefruit‐like, strong), nootkatone, β-vetivone and α-vetivone. \\+From 16 odor-active constituents of vetiveryl acetate (ex Haitian vetiver oil), 8 were identifiedkhusimone, ziza‐6(13)‐en‐3‐one, 2‐epi‐ziza‐6(13)‐en‐3‐one, khusian-2-ol, 12‐nor‐ziza‐6(13)‐en‐2α‐yl acetate (vetiver‐like, grapefruit‐like, strong), nootkatone, β-vetivone and α-vetivone. \\
 [Unravelling the Scent of Vetiver: Identification of Character‐Impact Compounds., Belhassen, E., Baldovini, N., Brevard, H., Meierhenrich, U.J., Filippi, J.J., Chemistry & biodiversity, 11(11), 2014, 1821-1842] [Unravelling the Scent of Vetiver: Identification of Character‐Impact Compounds., Belhassen, E., Baldovini, N., Brevard, H., Meierhenrich, U.J., Filippi, J.J., Chemistry & biodiversity, 11(11), 2014, 1821-1842]
  
chrysopogon_zizanioides_l._roberty.txt · Zuletzt geändert: 2021/05/27 09:47 von andreas