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    Continuous method for obtaining a crystalline monosaccharide and device for continuous crystallization
    2.
    发明授权
    Continuous method for obtaining a crystalline monosaccharide and device for continuous crystallization 有权

    公开(公告)号：US11981968B2

    公开(公告)日：2024-05-14

    申请号：US17293097

    申请日：2019-11-27

    申请人： BMA BRAUNSCHWEIGISCHE MASCHINENBAUANSTALT AG

    发明人： Mirko Löhn ,  Holger Fersterra

    IPC分类号： C13B30/02 ,  C07H1/06 ,  C07H3/02 ,  C13B30/00 ,  C13B30/04

    CPC分类号： C13B30/022 ,  C07H1/06 ,  C07H3/02 ,  C13B30/002 ,  C13B30/04

    摘要： The invention relates to a continuous method for obtaining a crystalline monosaccharide, comprising: continuous crystallization of the monosaccharide in a main crystallizer (10), wherein crystallization by evaporation and/or crystallization by cooling is carried out continuously on a crystal suspension in the main crystallizer in order to allow crystals of the monosaccharide to grow in the crystal suspension; separation of crystals of the monosaccharide out of the crystal suspension to obtain crystalline monosaccharide; continuous formation of a mass of crystallization magma for the main crystallizer (10) in a cascade, wherein the cascade comprises at least one first stage (13) and a final stage (15) connected in series and each stage comprises at least one pre-crystallizer (13A, 15A), wherein, in the at least one pre-crystallizer (13A) of the first stage (13), a solution is seeded with monosaccharide by means of monosaccharide seed crystals in order to obtain a pre-crystallization magma, and a mass of crystallization magma for the downstream stage (14, 15) is formed from the pre-crystallization magma by means of crystallization by cooling and/or crystallization by evaporation, and wherein a solution containing monosaccharide and a mass of crystallization magma from the upstream stage is supplied to the at least one pre-crystallizer (15A, 15B, 15C) of the final stage (15) to obtain a pre-crystallization magma, and in the at least one pre-crystallizer (15A, 15B, 15C) of the final stage (15) a mass of crystallization magma for the main crystallizer (10) is formed from the pre-crystallisation magma by means of crystallization by cooling and/or crystallization by evaporation; the continuous supply of a solution containing the monosaccharide and a mass of crystallization magma from the at least one pre-crystallizer (15A, 15B, 15C) of the final stage (15) of the cascade to the main crystallizer (10) to provide the crystal suspension.

    CRYSTALLIZATION OF ALLULOSE UNDER REDUCED PRESSURE
    5.
    发明公开
    CRYSTALLIZATION OF ALLULOSE UNDER REDUCED PRESSURE 审中-公开

    公开(公告)号：US20230159579A1

    公开(公告)日：2023-05-25

    申请号：US17917888

    申请日：2021-05-26

    申请人： SAVANNA INGREDIENTS GMBH

    发明人： Timo Johannes KOCH ,  Stephan MOHR

    IPC分类号： C07H1/06 ,  C07H3/02

    CPC分类号： C07H1/06 ,  C07H3/02 ,  C30B7/04

    摘要： The invention relates to a process for the preparation of a solid allulose material comprising crystalline allulose, the method comprising the steps of (a) providing in an evaporating crystallizer an aqueous mother liquor containing dissolved allulose; (b) maintaining, preferably until the end of crystallization, the aqueous mother liquor within the evaporating crystallizer at a crystallization temperature within the range of from 20 to 80° C.; (c) maintaining, preferably until the end of crystallization, the vapor phase above the aqueous mother liquor within the evaporating crystallizer at a crystallization pressure within the range of from 40 to 500 mbar; and (d) inducing crystallization of allulose from the aqueous mother liquor at the crystallization temperature and at the crystallization pressure in a supersaturated state thereby obtaining the solid allulose material as a precipitate and a supernatant.

    Cationic polymers with D-fructose substituents
    9.
    发明授权
    Cationic polymers with D-fructose substituents 有权

    公开(公告)号：US11530296B2

    公开(公告)日：2022-12-20

    申请号：US16495676

    申请日：2018-03-23

    申请人： Friedrich-Schiller-Universitaet Jena

    发明人： Michael Gottschaldt ,  Michael Proehl ,  Christoph Englert ,  Ulrich Sigmar Schubert

    IPC分类号： C08G69/48 ,  A61K47/64 ,  A61K47/54 ,  C07H3/02 ,  C08G73/02

    摘要： The invention relates to new cationic polymers conjugated with D-fructose, as a result of which they can selectively interact with specific structure elements on cell surfaces. The problem was that of creating novel, biocompatible, easy-to-produce, D-fructose-conjugated cationic polymers that have a higher selectivity with respect to certain cell types. To solve this problem, the invention proposes cationic polymers with covalently bonded D-fructose of general formula (I) with the following components: a) cationic polymer: macromolecular compounds of n repeat units with one or more positive charges; b) linker: a unit that links the cationic polymer with D-fructose or derivatives of D-fructose by means of any alkyl or aryl group, any alkenyl or alkinyl group, an ether, thioether or amine, an ester, amide or other carboxylic acid derivative, a heterocycle (e.g. triazole or m maleimide), a disulphide, an imine or an imide; c) D-fructose: one or more D-fructoses or D-fructose derivatives in an open-chain, furanoid or pyranoid structure, not glycosidically linked via one of the five possible carbon atoms (1, 3, 4, 5, 6).

    D-PSICOSE CRYSTAL AND PREPARATION METHOD THEREFOR
    10.
    发明申请
    D-PSICOSE CRYSTAL AND PREPARATION METHOD THEREFOR 有权

    公开(公告)号：US20220332745A1

    公开(公告)日：2022-10-20

    申请号：US17297586

    申请日：2019-11-29

    申请人： CJ CHEILJEDANG CORPORATION

    发明人： Young Soo Park ,  Joo Hang Lee ,  Seong Bo Kim ,  Seung Won Park

    IPC分类号： C07H1/00 ,  C07H3/02

    摘要： The present disclosure relates to a preparation method for a D-psicose crystal containing 98% (w/w) or more D-psicose and 0.05% (w/w) or less ethanol based on 100% (w/w) of the entire crystal. The preparation method includes a first step of mixing a D-psicose-containing solution and an organic solvent, and a second step of adding a seed to the mixed solution according to the first step and then cooling the same to obtain a massecuite containing the D-psicose crystal. Therefore, it is possible to increase the yield of the D-psicose crystal from the D-psicose crystal solution and prepare a D-psicose crystal of sufficient size and appropriate shape for use in mass production with no bad taste/smell.