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calocedrus_decurrens_torr._florin

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calocedrus_decurrens_torr._florin [2018/09/16 12:25]
andreas
calocedrus_decurrens_torr._florin [2020/02/07 11:19] (aktuell)
andreas
Zeile 22: Zeile 22:
 α-pinene (729; woody resinous), acetic acid (243, vinegar-like), (Z)-non-2-enal (243; fatty), (E)-non-2-enal (243; fatty), fenchol (729; moldy), butanoic acid (81; cheesy), 3-methylbutanoic acid (729; cheesy), (E,E)-nona-2,4-dienal (729; fatty), (E,E)-deca-2,4-dienal (81; fatty), β-damascenone (81; apple juice-like), hexanoic acid (81; sweet musty metallic), γ-octalactone (243; sweet coconut-like), p-cresol (729; horse-like), sotolone (729; spicy savory), α-bisabolol (729; pepper-like), phenylacetic acid (243; honey-like), vanillin (729; vanilla), 3-phenylpropanoic acid (729; fruity sweet metallic), unknown (sweaty perfume-like, androstenone-like), unknown-tentavely thunbergol (729; gingerbread-like), thymoquinone (243; pencil-like). \\ α-pinene (729; woody resinous), acetic acid (243, vinegar-like), (Z)-non-2-enal (243; fatty), (E)-non-2-enal (243; fatty), fenchol (729; moldy), butanoic acid (81; cheesy), 3-methylbutanoic acid (729; cheesy), (E,E)-nona-2,4-dienal (729; fatty), (E,E)-deca-2,4-dienal (81; fatty), β-damascenone (81; apple juice-like), hexanoic acid (81; sweet musty metallic), γ-octalactone (243; sweet coconut-like), p-cresol (729; horse-like), sotolone (729; spicy savory), α-bisabolol (729; pepper-like), phenylacetic acid (243; honey-like), vanillin (729; vanilla), 3-phenylpropanoic acid (729; fruity sweet metallic), unknown (sweaty perfume-like, androstenone-like), unknown-tentavely thunbergol (729; gingerbread-like), thymoquinone (243; pencil-like). \\
 [Schreiner, Linda, Helene M. Loos, and Andrea Buettner. "Identification of odorants in wood of Calocedrus decurrens (Torr.) Florin by aroma extract dilution analysis and two-dimensional gas chromatography-mass spectrometry/olfactometry." Analytical and bioanalytical chemistry 409.15 (2017): 3719-3729] [Schreiner, Linda, Helene M. Loos, and Andrea Buettner. "Identification of odorants in wood of Calocedrus decurrens (Torr.) Florin by aroma extract dilution analysis and two-dimensional gas chromatography-mass spectrometry/olfactometry." Analytical and bioanalytical chemistry 409.15 (2017): 3719-3729]
 +
 +Using stable isotope dilution analysis (SIDA) and odor activity values (OAVs) calculated on the basis of odor thresholds determined in cellulose, hexanal, octanal, (E)-non-2-enal, p-cresol, vanillin, and thymoquinone were the dominant odorants for wood odor of several softwood species (Pinus sylvestris, Larix decidua, Calocedrus decurrens, Abies concolor, and Picea abies). Incense cedar wood with the mainly pencil-like,
 +eucalyptus-like odor was rated different from pine, larch, and spruce odor. The odor impression vinegar-like, which is characteristic for acetic acid, was rated as the most intense in the incense cedar. \\
 +"Regarding the quantitative results of thymoquinone, it is striking that its content was higher in the incense cedar wood at the same time being the only sample exceeding the odor threshold in cellulose (OAV = 4). This finding stands in line with the strong pencil-like odor perceived during the sensory evaluation. The odorant occurs in a 2500 times higher concentration in the incense cedar (1.1 g/kg) compared to the next
 +highest value of 416 μg/kg in the Scots pine sample." \\
 +[Schreiner, Linda, Eva Ortner, and Andrea Buettner. "Nosy confirmation: reconstitution of the characteristic odor of softwood via quantitative analysis and human sensory evaluation." Analytical and Bioanalytical Chemistry (2019): 1-13]
    
 {{:calocedrus_decurrens.jpg?600}} \\ {{:calocedrus_decurrens.jpg?600}} \\
calocedrus_decurrens_torr._florin.1537093540.txt.gz · Zuletzt geändert: 2018/09/16 12:25 von andreas