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

IPC: C12P19/56 ,  A23L27/30 ,  C12P19/44 ,  A23L33/20 ,  A23L2/60

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.

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.