Aroma characteristics and volatile compounds of distilled Crystal grape spirits of different alcohol concentrations: wine sprits in the Shangri-La region of China

Abstract Aroma composition is critical to the quality of distilled spirits while the alcohol concentration could have a great effect on the variety and content of aromatic substances. In order to clarify the effect of alcohol concentration on the formation of the aroma composition, volatile compounds in Crystal distilled grape spirits with different alcohol concentrations were analyzed using the Stir bar sorptive extraction (SBSE) technique combined with GC-MS. Characteristic aromas, principal components and odor profiles were also explored. Eighty-six compounds were identified in Crystal dis...