METHOD FOR PREPARING CONCENTRATED POLYPHENOL EXTRACTS BY MIXING Russian patent published in 2015 - IPC C12F3/06 C12H1/04 A23L1/30 A61K8/30 A61K8/97 A61K36/8998 A61Q19/08 

FIELD: chemistry.

SUBSTANCE: present invention refers to developing brewing products. According to the invention, a method for preparing an extract of polyphenols as a result of brewage involves the stages: contacting partially purified beer with resin, which adsorbs polyphenols; desorbing polyphenols adsorbed on the resin contacting with partially purified beer; adsorbing polyphenols on the second resin different from the first one; the above second resin is hydrophobic and non-ionic; and desorbing polyphenols adsorbed on the second resin with using an organic solvent; implementing the method is ethylacetate-free. The invention also refers to the method for preparing the extract of polyphenols as a result of brewage that involves the following stages: contacting partially purified beer with hydrophobic and non-ionic resin, which adsorbs polyphenols; and desorbing polyphenols adsorbed on the resin used at the previous stage of contacting with using the organic solvent; a desorption product contains at least 0.85 g of polyphenols per one gram of a dry matter. The invention also refers to the extract of polyphenols prepared by the above method and containing catechin, epicatechin, thyrozol and ferulic acid. The invention also refers to a cosmetic product, a functional food product, a food additive, which contain the above extract of polyphenols in an effective amount. Also the invention provides using the above cosmetic product for skin moistening and/or ageing prevention or delay, using the extract of polyphenols for producing an antioxidant composition.

EFFECT: invention provides preparing the extract of ethylacetate-free and high-purity polyphenols.

19 cl, 23 dwg, 22 tbl, 6 ex