Method for recovering aroma concentrate from a caffeine- or theobromine-comprising food base material

摘要

Described is a method for recovering aroma concentrate from a caffeine- or theobromine-comprising food base material, such as coffee or tea, and in particular cocoa, at least including the steps of:;introducing the food base material into an aqueous extractant and incubating the food base material at a suitable temperature and for a suitable period, substantial extraction of the aromas taking place to form an aqueous food extract,;pervaporating the food extract using a hydrophobic pervaporation membrane to form a food aroma permeate,;recovering the permeate to obtain the aroma concentrate.;Also described are food concentrates obtainable via the abovementioned method.