METHOD FOR EXTRACTING FLAVONOIDS FROM PLANT-BASED RAW MATERIALS Russian patent published in 2022 - IPC A61K36/53 A61K36/533 A61K36/38 B01D11/02 

FIELD: pharmaceuticals.

SUBSTANCE: invention relates to the pharmaceutical industry; namely, to a method for extracting flavonoids from plant-based raw materials. Proposed is a method for extracting flavonoids from plant-based raw materials, consisting in mixing the starting natural components from a mixed plant composition consisting of motherwort herb, St. John's wort herb, garden balm herb, and creeping thyme herb in a 4:2.5:2.5:1 ratio, said ingredients being crushed to a particle size of 2 to 3 mm, adding a 40% aqueous solution of a eutectic solvent based on betaine hydrochloride and propylene glycol in a 1:3 molar ratio, with a raw materials:extractant ratio of 1:15, and heating after mixing to 60°C in a water bath while constantly stirring until a homogeneous transparent liquid in the form of the end product is formed.

EFFECT: possibility of increasing the efficiency of extracting flavonoids from plant-based raw materials and expanding the range of technical means for extracting, ensuring the safety of the end product in application.

1 cl, 3 dwg, 2 tbl