Influence of extraction time, solvent and wood specie on experimentally aged spirits – A simple tool to differentiate wood species used in cooperage

Type of the wood used for aging highly influences quality alcoholic beverages. In this research we explored potential cyclic voltammetry (CV) and differential pulse (DPV) to establish fingerprints characteristic each enable determining type in process. Eleven different samples were prepare three types spirits during 15 months. The highest extraction rate was obtained first month, while further followed with almost constant amount extracted polyphenols. Black locust, myrobalan plum, mulberry extracts discriminated from aged oak wild cherry when statistical analysis applied. Although clear classification all not achieved, long term study demonstrated a both CV DPV differentiating species aging, hence control spirits.