Identification and quantification of phenolics in aromatic bitter and cherry liqueur by HPLC with electrochemical detection

An HPLC-based method with electrochemical detection was optimized for quantitative analysis of phenolic compounds in an aromatic bitter and a cherry liqueur, which are different types of alcoholic beverages with a high phenolic content. The method requires only filtering of samples prior to the HPLC analysis and is recommended for routine analysis. Two slightly different gradients were needed for the analysis of the two beverages. Eleven and eight different phenolic compounds (cinnamic acid derivatives, benzoic acid derivatives, flavan-3-ols, flavanons, and eugenol) were identified and quantified in the bitter and the cherry liqueur, respectively.