REBAUDIOSIDE D OF HIGH PURITY AND USE THEREOF Russian patent published in 2016 - IPC C07H1/08 A23L27/30 A23G1/42 A23L2/60 A21D2/08 A23G9/36 A61K8/60 A21D13/08 A23L27/50 A61K31/704 A23C9/13 A23L2/02 

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of purifying Rebaudioside D and compositions based thereon. Proposed method comprises providing extract of Stevia rebaudiana Bertoni; dissolving said extract in first aqueous solution of an organic solvent to obtain a first mixture of steviol glycosides, where said organic solvent is selected from a group consisting of methanol, ethanol and mixture of said substances, and concentration of said organic solvent is 75-99 vol%; induction crystallisation in first mixture; filtering said mixture to produce first precipitate and first filtrate; dissolution of first precipitate in second aqueous solution of an organic solvent to obtain a second mixture, where said organic solvent selected from a group consisting of methanol, ethanol and mixture of said substances, and concentration of said organic solvent is 70-80 vol%; induction crystallisation in second mixture; filtering of said mixture to produce second precipitate and second filtrate; dissolution of second precipitate in third aqueous solution of an organic solvent to produce a third of mixture, where said organic solvent is selected from a group consisting of methanol, ethanol and mixture of said substances, and concentration of said organic solvent is 10-80 vol%; induction crystallisation in third mixture and filtration of said mixture to produce third precipitate and third filtrate to obtain purified Rebaudioside D. Proposed sweetener composition contains Rebaudioside D 81.6-95.7 wt%, Rebaudioside A 3.8-16.2 wt%, Stevioside 0.1-0.8 wt%, Rebaudioside C 0.1-0.7 wt%, Rebaudioside E 0.2-0.5 wt%, Rebaudioside F 0.1-0.2 wt%.

EFFECT: novel efficient method of producing Rebaudioside D and effective sweetener composition based thereon.

19 cl, 6 dwg, 12 tbl, 13 ex