Characteristics of compounds in hops using cyclic voltammetry, UV–VIS, FTIR and GC–MS analysis

摘要: The article presents the antioxidant properties of extracts hop EI and EII, by electrochemical methods on a platinum electrode comparative analysis composition hops using UV–VIS, FTIR GC–MS methods. extract EI, was obtained from waste cone. cone itself. Hops contain wide range polyphenolic compounds with divided in various chemical classes. Flavonoids other contained show capacity because presence hydroxyl groups configurations numbers within their molecules. samples were determined to select most effective antioxidant. Based cyclic pulse voltammograms, it observed that contains polyphenols are oxidised at less positive potential than i.e., shows better capacity. From UV–VIS spectra analysis, phenyl EII. In addition flavonoids, EII acids chlorophyll. solutions very good capacities; therefore, they can effectively inhibit or slow negative oxidation reactions scavenge free radicals reactive oxygen species (ROS).