| Title: | Contribution of Volatile Odorous Terpenoid Compounds to Aged Cognac Spirits Aroma in a Context of Multicomponent Odor Mixtures |
| Author(s): | Thibaud F; Courregelongue M; Darriet P; |
| Address: | "Universite de Bordeaux, Unite de Recherche OEnologie, EA 4577, USC 1366 INRA, ISVV, 33882 Villenave d'Ornon Cedex, France" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "Cognac spirit aromas result from the presence of a wide variety of volatile odorous compounds associated with the modalities of spirit distillation and aging. However, very few studies have been carried out on aging notes of Cognac spirits. An HPLC fractionation approach was used in order to evidence fractions of interest recalling the specific aromatic nuances of aged Cognac. Then, a GC-O/MS analysis of the selected fractions allowed one to detect odorous zones and identify several volatile compounds. Among them, various well-known volatile compounds representative of the terpenoid family were highlighted, such as geraniol, alpha-terpinene, nerol, alpha-terpineol, 1,8-cineole (eucalyptol) and, particularly, piperitone, santalol, and alpha-campholenal, which have not previously been cited in Cognac. These compounds were quantitated and their detection thresholds were determined. Geraniol, alpha-terpinene, alpha-terpineol, and 1,8-cineole concentrations increased while spirits were more aged, while nerol tends to decrease. A sensory contribution of terpenes was observed through perceptual synergic effects, along with beta-damascenone and whisky lactone" |
| Keywords: | Alcoholic Beverages/*analysis/microbiology Distillation Fermentation Gas Chromatography-Mass Spectrometry Humans Odorants/analysis Olfactometry Saccharomyces cerevisiae/metabolism Terpenes/*chemistry/metabolism Vitis/*chemistry Volatile Organic Compounds/; |
| Notes: | "MedlineThibaud, Fannie Courregelongue, Marie Darriet, Philippe eng 2020/02/14 J Agric Food Chem. 2020 Nov 25; 68(47):13310-13318. doi: 10.1021/acs.jafc.9b06656. Epub 2020 Feb 21" |
