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公开(公告)号：US11066688B2
公开(公告)日：2021-07-20
申请号：US15742561
申请日：2016-07-11
Applicant: DSM IP ASSETS B.V.
Inventor： Robert Geertman , Igor Galaev
Abstract: The present invention relates to a composition comprising one or more steviol glycosides which composition comprises nitrogen in an amount of no more than about 1000 ppm. The invention also relates to a method for preparing a steviol glycoside composition, which method comprises: providing a steviol glycoside composition; combining the steviol glycoside composition with water to form a steviol glycoside solution; and crystallizing a steviol glycoside composition from the solution. The invention also relates to a method for reducing the nitrogen content of a steviol glycoside composition, which method comprises: providing a steviol glycoside composition which comprises nitrogen; combining the steviol glycoside composition with water to form a steviol glycoside solution; and crystallizing a steviol glycoside composition from the solution, thereby to reduce the amount of nitrogen in the steviol glycoside composition.
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Patent Agency Ranking
公开(公告)号：US11124535B2
公开(公告)日：2021-09-21
申请号：US15742355
申请日：2016-07-11
Applicant: DSM IP ASSETS B.V.
Inventor： Robert Geertman , Igor Galaev
IPC: C07H15/256 , A23L27/30 , C07H1/06
Abstract: The present invention relates to a composition comprising one or more steviol glycosides which composition comprises kaurenoic acid in an amount of no more than 150 ppm. The invention also relates to a method for preparing a steviol glycoside composition, which method comprises: providing a steviol glycoside composition; combining the steviol glycoside composition with a solvent to form a steviol glycoside solution; and crystallizing a steviol glycoside composition from the steviol glycoside solution, wherein the crystallization is carried out at pH7.0 or below. The invention also relates to a method for reducing the kaurenoic acid content of a steviol glycoside composition, which method comprises: providing a steviol glycoside composition which comprises kaurenoic acid; combining the steviol glycoside composition with a solvent to form a steviol glycoside solution; and crystallizing a steviol glycoside composition from the steviol glycoside solution, wherein the crystallization is carried out at pH7.0, thereby to reduce the amount of kaurenoic acid in the steviol glycoside composition.
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公开(公告)号：US10689410B2
公开(公告)日：2020-06-23
申请号：US15891898
申请日：2018-02-08
Applicant: DSM IP ASSETS B.V.
Inventor： Igor Galaev
Abstract: The present invention relates a process for the recovery of one or more steviol glycosides from a steviol glycoside-containing fermentation broth, which method comprises (a) providing a fermentation broth comprising one or more steviol glycosides and one or more non-steviol glycoside components; (b) separating the liquid phase of the broth from the solid phase of the broth; (c) providing an adsorbent resin; (d) contacting the liquid phase of the broth with the adsorbent resin in order to separate at least a portion of the one or more steviol glycosides from the non-steviol glycoside components, thereby to recover one or more steviol glycosides from the fermentation broth containing one or more steviol glycosides. The invention also relates to a purified steviol glycoside composition prepared using such a process.
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公开(公告)号：US11878992B2
公开(公告)日：2024-01-23
申请号：US16322410
申请日：2017-08-09
Applicant: DSM IP Assets B.V.
Inventor： Igor Galaev , Robertus Mattheus De Pater
IPC: C07H15/256 , C07H1/06 , C12J1/08 , A23F3/40 , A23F5/46 , C12G3/06 , A23L2/60 , C12C5/02 , C07H1/08
CPC classification number: C07H15/256 , A23F3/405 , A23F5/465 , A23L2/60 , C07H1/06 , C12C5/026 , C12G3/06 , C12J1/08 , C07H1/08 , C12G2200/21
Abstract: A method for purifying rebaudioside M, which method comprises: (a) providing a solution comprising rebaudioside M at a concentration of at least about 10 g/L and at a purity of at least about 10% by weight on a dry basis; and (b) crystallizing from the solution a high purity composition comprising rebaudioside M, thereby to purify rebaudioside M.
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公开(公告)号：US11117916B2
公开(公告)日：2021-09-14
申请号：US16868934
申请日：2020-05-07
Applicant: DSM IP ASSETS B.V.
Inventor： Igor Galaev
Abstract: The present invention relates a process for the recovery of one or more steviol glycosides from a steviol glycoside-containing fermentation broth, which method comprises (a) providing a fermentation broth comprising one or more steviol glycosides and one or more non-steviol glycoside components; (b) separating the liquid phase of the broth from the solid phase of the broth; (c) providing an adsorbent resin; (d) contacting the liquid phase of the broth with the adsorbent resin in order to separate at least a portion of the one or more steviol glycosides from the non-steviol glycoside components, thereby to recover one or more steviol glycosides from the fermentation broth containing one or more steviol glycosides. The invention also relates to a purified steviol glycoside composition prepared using such a process.
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公开(公告)号：US10196630B2
公开(公告)日：2019-02-05
申请号：US14893186
申请日：2014-06-02
Applicant: DSM IP ASSETS B.V.
Inventor： Aida Hiseni , Igor Galaev , Luppo Edens
Abstract: The present invention relates to immobilized proline-specific endoprotease, wherein the proline-specific endoprotease is immobilized on a carrier comprising methacrylate which has been functionalized with amino dimethylene, and wherein the carrier has a particle size range of 100 to 400 μm. The invention also relates to a process for producing beer comprising the steps of preparing a mash, fermenting the beer, and stabilizing the beer, wherein the beer is incubated with the immobilized proline-specific endoprotease.
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