FIELD: food-processing industry, in particular, food-concentrates industry. SUBSTANCE: method involves extracting bitter substances from citrus fruits flavedo; treating citrus fruits with preparation produced by sequential extracting of Mortierella sepedonioides micromycet biomass with the use of non-polar extractant in above-critical state, water, alkaline, water, acid, water, alkaline and water, with following joining of first extract with solid residue and holding for 2-5 hours; crashing citrus fruits for obtaining pulpy juice; subjecting to concentration. EFFECT: increased efficiency by eliminating opalescence of base product and improved quality of beverage. 2 ex
