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cistus_ladanifer_l [2018/10/04 15:32]
andreas
cistus_ladanifer_l [2019/02/03 12:27] (aktuell)
andreas
Zeile 24: Zeile 24:
  
 "​Labdanum oil is a mixture of ca. 250 compounds... Only ten compounds, i.e., (-)α-pinene,​ (+)-camphene,​ pinocarveol,​ bornyl acetate, borneol, 2,​2,​6-trimethylcyclohexanone,​ (Z)-ocimenone,​ (-)-allo-aromadendrene/​(+)-ledene,​ (+)-ledol, and viridiflorol,​ occur in concentrations above 1%, however, these do not represent the complex odor profile of the oil. The odor character of labdanum oil is on the contrary determined by a large number of oxygenated trace compounds such as [[http://​de.wikipedia.org/​wiki/​Ambrox|(-)-ambrox]],​ 6-oxoisoambrox and a decahydronaphthalenol,​ which are responsible for the distinct ambery character... The smoky-leathery notes and the animalic undertones are caused by a complex of 25 phenols (1.5%)... The character-impact compound of oakmoss, methyl beta-orcinolcarboxylate,​ is responsible for the powdery, moss-like undertones... Another constituent,​ 2-methyloctanoic acid, has a strong labdanoic odor on its own, (and) 3,​4,​4-trimethylcyclopentane-1,​2-dione... has a strong celery aroma."​ \\ "​Labdanum oil is a mixture of ca. 250 compounds... Only ten compounds, i.e., (-)α-pinene,​ (+)-camphene,​ pinocarveol,​ bornyl acetate, borneol, 2,​2,​6-trimethylcyclohexanone,​ (Z)-ocimenone,​ (-)-allo-aromadendrene/​(+)-ledene,​ (+)-ledol, and viridiflorol,​ occur in concentrations above 1%, however, these do not represent the complex odor profile of the oil. The odor character of labdanum oil is on the contrary determined by a large number of oxygenated trace compounds such as [[http://​de.wikipedia.org/​wiki/​Ambrox|(-)-ambrox]],​ 6-oxoisoambrox and a decahydronaphthalenol,​ which are responsible for the distinct ambery character... The smoky-leathery notes and the animalic undertones are caused by a complex of 25 phenols (1.5%)... The character-impact compound of oakmoss, methyl beta-orcinolcarboxylate,​ is responsible for the powdery, moss-like undertones... Another constituent,​ 2-methyloctanoic acid, has a strong labdanoic odor on its own, (and) 3,​4,​4-trimethylcyclopentane-1,​2-dione... has a strong celery aroma."​ \\
-[S.Escher, Firmenich SA, unpublished results; cited by Roman Kaiser, Meaningful Scents around the World, Roman Kaiser, Zürich 2006, 313ff]+[S.Escher, Firmenich SA, unpublished results; cited by Roman Kaiser, Meaningful Scents around the World, Roman Kaiser, Zürich 2006, 313ff] \\ 
 +see also [Scent and Chemistry, Günther Ohloff, Wilhelm Pickenhagen,​ Philip Kraft, Wiley-VCH, 2012, 312-317
  
 |{{:​trimethylcyclohexanone.jpg|2,​2,​6-trimethylcyclohexanone}} \\ 2,​2,​6-trimethylcyclohexanone \\ //​(thujonic)//​| {{:​alpha_pinene.jpg|α-pinene}} \\ α-pinene \\ //(pine)//| {{:​viridiflorol.jpg| viridiflorol}} \\ viridiflorol ​ | {{:​ambrox.jpg|(-)-ambrox}} \\ (-)-ambrox \\ //​(ambergris)//​ | |{{:​trimethylcyclohexanone.jpg|2,​2,​6-trimethylcyclohexanone}} \\ 2,​2,​6-trimethylcyclohexanone \\ //​(thujonic)//​| {{:​alpha_pinene.jpg|α-pinene}} \\ α-pinene \\ //(pine)//| {{:​viridiflorol.jpg| viridiflorol}} \\ viridiflorol ​ | {{:​ambrox.jpg|(-)-ambrox}} \\ (-)-ambrox \\ //​(ambergris)//​ |
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 [Greche, Hassane, et al. "The volatiles of the leaf oil of Cistus ladanifer L. var. albiflorus and labdanum extracts of moroccan origin and their antimicrobial activities."​ Journal of Essential Oil Research 21.2 (2009): 166-173] [Greche, Hassane, et al. "The volatiles of the leaf oil of Cistus ladanifer L. var. albiflorus and labdanum extracts of moroccan origin and their antimicrobial activities."​ Journal of Essential Oil Research 21.2 (2009): 166-173]
  
-"​Labdanum is a compley mixture of over 250 ingredients and none of the 10 components that occur in >1.0% amounts does contribute really to the typical smell as detailed in 'Scent and Chemistry'​. We mentioned already the fruity '​Egoïste'​ and the incense part of labdanum. That is backed up by the floral-rosy part around Vitispirane A, rose oxide, dehydrogeraniol,​ 9-oxodamascone,​ 2-phenlyethanol ​and derivatives. As yes, labdanum or ciste is also known as 'gum rockrose'​. This rosy side is forming a nice accord with the ambergris block of labdanum around (–)-ambrox,​ 6-oxo-isoambrox,​ and (2R,​4aS,​8aR)-2,​5,​5,​8a-tetramethyldecahydro-naphthalen-2-ol. This is underscored by a hay-like coumarinic part around 8(9)-dehydrocarvacrol and lactones that also can convey a plumy message while being not plumy itself. There are mossy and resinous blocks, but key is as well a leathery animalic block of 25 phenols with 3,​5-dimethylsalicylic aldehyde, 6-methyl-2-hydroxy-acetophenone and o-hydroxy cuminal being most important... So labdanum is a perfume in itself already..."​ \\+"​Labdanum is a compley mixture of over 250 ingredients and none of the 10 components that occur in >1.0% amounts does contribute really to the typical smell as detailed in 'Scent and Chemistry'​. We mentioned already the fruity '​Egoïste'​ and the incense part of labdanum. That is backed up by the floral-rosy part around Vitispirane A, rose oxide, dehydrogeraniol,​ 9-oxodamascone,​ 2-phenylethanol ​and derivatives. As yes, labdanum or ciste is also known as 'gum rockrose'​. This rosy side is forming a nice accord with the ambergris block of labdanum around (–)-ambrox,​ 6-oxo-isoambrox,​ and (2R,​4aS,​8aR)-2,​5,​5,​8a-tetramethyldecahydro-naphthalen-2-ol. This is underscored by a hay-like coumarinic part around 8(9)-dehydrocarvacrol and lactones that also can convey a plumy message while being not plumy itself. There are mossy and resinous blocks, but key is as well a leathery animalic block of 25 phenols with 3,​5-dimethylsalicylic aldehyde, 6-methyl-2-hydroxy-acetophenone and o-hydroxy cuminal being most important... So labdanum is a perfume in itself already..."​ \\
 [P.Kraft, fb post 2016] [[https://​www.facebook.com/​ScentChemistry/​posts/​after-we-saw-a-lot-of-solimolecule-fragrances-around-a-single-synthetic-ingredie/​1553159284711080/​]] [P.Kraft, fb post 2016] [[https://​www.facebook.com/​ScentChemistry/​posts/​after-we-saw-a-lot-of-solimolecule-fragrances-around-a-single-synthetic-ingredie/​1553159284711080/​]]
  
cistus_ladanifer_l.txt · Zuletzt geändert: 2019/02/03 12:27 von andreas