Molecular and sensory characterization of odorants in Cembran pine (Pinus cembra L.) from different geographic regions.

Molecular and sensory characterization of odorants in Cembran pine (Pinus cembra L.) from different geographic regions. Talanta. 2020 Dec 01;220:121380 Authors: Ghadiriasli R, Mahmoud MAA, Wagenstaller M, van de Kuilen JW, Buettner A Abstract The wood of the Cembran pine (Pinus cembra L.), also known as Swiss pine, Arolla pine or Stone pine, has a prominent and long-lasting odor which has been reported to relieve stress in humans. However, the odorants responsible for this are unknown and it is also unclear whether the odor profile depends on the origin of the trees, namely different geographical regions and pedoclimatic conditions. Therefore, in this study human sensory analyses together with isolation and analysis of the target odorants via solvent-assisted flavor evaporation were performed. Afterwards, comparative odor extract dilution analysis (cOEDA) was applied to investigate the odorous constituents of pinewood samples from forests in Austria and Italy. Specific odorants were thereby identified using one-dimensional and two-dimensional gas chromatography-mass spectrometry/olfactometry using two capillary columns with different polarities (DB-5 and DB-FFAP). In total, 103 odorants were detected with successful identification of 98 of these substances. The identified odorants were predominately monoterpenes and sesquiterpenes as well as organic acids. Several compounds including germacrene D, thymol, carvacrol, rotundone, β-car...
Source: Talanta - Category: Chemistry Authors: Tags: Talanta Source Type: research