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evernia_prunastri_l._arch [2019/04/10 14:24]
andreas |
evernia_prunastri_l._arch [2021/08/01 14:07] (aktuell)
andreas |
| [Scent and Chemistry, Günther Ohloff, Wilhelm Pickenhagen, Philip Kraft, Wiley-VCH, 2012, 317-321] | [Scent and Chemistry, Günther Ohloff, Wilhelm Pickenhagen, Philip Kraft, Wiley-VCH, 2012, 317-321] |
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| | {{:orcinyle.jpg|}} \\ 3-methoxy-5-methylphenol \\ (Orcinyl 3, R=H) \\ 3-methoxy-2,5-dimethylphenol (R=Me)| {{:evernyl.jpg|}} \\ Evernyl \\ (methyl-β-orcinol carboxylate, [[http://www.thegoodscentscompany.com/data/rw1023372.html|veramoss]], verymoss)| | | {{:orcinyle.jpg|}} \\ [[https://www.thegoodscentscompany.com/data/rw1016391.html|3-methoxy-5-methylphenol]] \\ (Orcinyl 3, R=H) \\ 3-methoxy-2,5-dimethylphenol (R=Me)| {{:evernyl.jpg|}} \\ Evernyl \\ (methyl-β-orcinol carboxylate, [[http://www.thegoodscentscompany.com/data/rw1023372.html|veramoss]], verymoss)| |
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| "...oak moss absolute, prepared from the lichen Evernia prunastri (L.) Arch., is considered a major contact sensitizer and is therefore included in the fragrance mix used for diagnosing perfume allergy... results showed that atranol and chloroatranol, formed by transesterification and decarboxylation of the lichen depsides, atranorin and chloroatranorin, during the preparation of oak moss absolute, are strong elicitants in | "...oak moss absolute, prepared from the lichen Evernia prunastri (L.) Arch., is considered a major contact sensitizer and is therefore included in the fragrance mix used for diagnosing perfume allergy... results showed that atranol and chloroatranol, formed by transesterification and decarboxylation of the lichen depsides, atranorin and chloroatranorin, during the preparation of oak moss absolute, are strong elicitants in |
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| One of the most common lichen substances is (+)-usnic acid, which occurs in high amounts in E.prunastri, but is not detected in Pseudevernia furfuracea (treemoss). It is possible to isolate >50g of pure usnic acid from 350 g of a resinoid, but the absolutes are practically free of it. \\ | One of the most common lichen substances is (+)-usnic acid, which occurs in high amounts in E.prunastri, but is not detected in Pseudevernia furfuracea (treemoss). It is possible to isolate >50g of pure usnic acid from 350 g of a resinoid, but the absolutes are practically free of it. \\ |
| Methyl-β-orcinol carboxylate (10-20%, w/w of resinoid or extract) is the most important compound of the depsides and mono-aromatic compounds in oakmoss extracts. "Although methyl β-orcinolcarboxylate was initially described as odourless, it became rapidly obvious that it is the major contributor to the odour of oakmoss extracts. Strangely enough, one had to wait until the middle of the 1960s to see a number of processes appear in the patent literature for the production of methyl-β-orcinol carboxylate and other structurally related artificial resorcylates with possible applications in fragrance formulations." \\ | Methyl-β-orcinol carboxylate (10-20%, w/w of resinoid or absolute) is the most important compound of the depsides and mono-aromatic compounds in oakmoss extracts. "Although methyl β-orcinolcarboxylate was initially described as odourless, it became rapidly obvious that it is the major contributor to the odour of oakmoss extracts. Strangely enough, one had to wait until the middle of the 1960s to see a number of processes appear in the patent literature for the production of methyl-β-orcinol carboxylate and other structurally related artificial resorcylates with possible applications in fragrance formulations." \\ |
| [Joulain, Daniel, and Raphaël Tabacchi. "Lichen extracts as raw materials in perfumery. Part 1: oakmoss." Flavour and fragrance journal 24.2 (2009): 49-61] [[https://core.ac.uk/download/pdf/20644842.pdf]] | [Joulain, Daniel, and Raphaël Tabacchi. "Lichen extracts as raw materials in perfumery. Part 1: oakmoss." Flavour and fragrance journal 24.2 (2009): 49-61] [[https://core.ac.uk/download/pdf/20644842.pdf]] |
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| {{:1024px-evernia_prunastri_on_prunus_cerasifera.jpg?700}}\\ | "... the composition of the volatiles from the acetone soluble fractions of the methanol extracts of the lichen species: Hypogymnia physodes, Evernia prunastri and Parmelia sulcata, growing on the same host tree, collected at the same time and locality, are reported." Main components of the extract from E.prunastri were methyl β-orcinolcarboxylate (atraric acid; 30.1%), orcinol (25.0%), usnic acid (11.4%), methyl 2,4-dihydroxy-6-methylbenzoate (methyl orsellinate; 10.2%), 3-methoxy-5-methylphenol (orcinol monomethyl ether; 5.7%) and 2,6-dihydroxy-4-methylbenzaldehyde (atranol; 2.1%). \\ |
| | [Stojanović, Igor Ž., et al. "Volatile constituents of selected Parmeliaceae lichens." Journal of the Serbian Chemical Society 76.7 (2011): 987-994] [[http://www.doiserbia.nb.rs/img/doi/0352-5139/2011/0352-51391100087S.pdf]] |
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| | {{:1024px-evernia_prunastri_on_prunus_cerasifera.jpg}}\\ |
| Evernia prunastri on Prunus cerasifera | Evernia prunastri on Prunus cerasifera |
| [[https://creativecommons.org/licenses/by-sa/3.0/de/|CC BY-SA 3.0]], Author: la la means I love you [[https://commons.wikimedia.org/wiki/File:Evernia_prunastri_on_Prunus_cerasifera.jpg|Wikimedia Commons]] | [[https://creativecommons.org/licenses/by-sa/3.0/de/|CC BY-SA 3.0]], Author: la la means I love you [[https://commons.wikimedia.org/wiki/File:Evernia_prunastri_on_Prunus_cerasifera.jpg|Wikimedia Commons]] |
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