Odor-active constituents of Cedrus atlantica wood essential oil. (December 2017)

• Record Type: Journal Article
• Authors: Uehara, Ayaka; Tommis, Basma; Belhassen, Emilie; Satrani, Badr; Ghanmi, Mohamed; Baldovini, Nicolas
• Is Part Of: Phytochemistry. Volume 144(2017)
• Page Start: 208
• Page End: 215
• Publication Date: 2017-12
• Subjects: Cedrus atlantica (Pinaceae) -- Atlas Cedarwood -- GC-O -- AEDA -- Key odorants; Botanical chemistry -- Periodicals; Biochemistry -- Periodicals; Botany -- Periodicals; Chimie végétale -- Périodiques; 572.2
• DOI: 10.1016/j.phytochem.2017.09.017
• Languages: English
• ISSNs: 0031-9422

Abstract

Abstract: The main odorant constituents of Cedrus atlantica essential oil were characterized by GC-Olfactometry (GC-O), using the Aroma Extract Dilution Analysis (AEDA) methodology with 12 panelists. The two most potent odor-active constituents were vestitenone and 4-acetyl-1-methylcyclohexene. The identification of the odorants was realized by a detailed fractionation of the essential oil by liquid-liquid basic extraction, distillation and column chromatography, followed by the GC-MS and GC-O analyses of some fractions, and the synthesis of some non-commercial reference constituents. Graphical abstract: Highlights: This study reports the first characterization of Atlas cedarwood odorants by GC-O AEDA. The atlantones, previously reported as important odorants, were totally odorless in our assays with 12 panelists! Important (and up to now completely underestimated) odorants are 4-acetyl-1-methylcyclohexene and vestitenone.