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    PUERARIA FLOWER EXTRACT RICH IN ISOFLAVONES AND A METHOD AND APPLICATION OF THE SAME
    1.
    发明申请
    PUERARIA FLOWER EXTRACT RICH IN ISOFLAVONES AND A METHOD AND APPLICATION OF THE SAME 有权

    公开(公告)号：US20210393725A1

    公开(公告)日：2021-12-23

    申请号：US17327708

    申请日：2021-05-22

    申请人： Sujing GU ,  Linzheng LI ,  Ziheng JIN ,  Yanjun WEN

    发明人： Sujing GU ,  Linzheng LI ,  Ziheng JIN ,  Yanjun WEN

    IPC分类号： A61K36/488

    摘要： A method of preparing a Pueraria flower extract rich in isoflavones includes: grinding dry Pueraria flowers to obtain a Pueraria flower powder; adding a first 20-50% ethanol solution to form a mixture, stirring and heating the mixture at 20-80° C. for 1-4 hours, removing the first solution, adding a second 20-50% ethanol solution, stirring and heating the mixture, removing the second solution, and combining the first solution and the second solution to obtain an extract solution; filtering the extract solution to remove solids; concentrating the extract solution under vacuum to obtain a crude extract containing 10-40% solid components; adding anhydrous ethanol solution to reach an ethanol concentration of the crude extract of 75-95%, storing the crude extract at 20-30° C. for 1-4 hours; centrifuging the crude extract at a speed of 2,000-5,000 r/min to obtain a supernatant; and concentrating and spray drying to obtain the Pueraria flower extract without any purification steps.

    SENNA OBTUSIFOLIA SEED EXTRACT AND A METHOD FOR COMPREHENSIVE DEVELOPMENT AND UTILIZATION OF SENNA OBTUSIFOLIA SEEDS
    2.
    发明申请
    SENNA OBTUSIFOLIA SEED EXTRACT AND A METHOD FOR COMPREHENSIVE DEVELOPMENT AND UTILIZATION OF SENNA OBTUSIFOLIA SEEDS 有权

    公开(公告)号：US20210402324A1

    公开(公告)日：2021-12-30

    申请号：US17352295

    申请日：2021-06-19

    申请人： Sujing GU ,  Ziheng JIN ,  Yanjun WEN ,  Linzheng LI

    发明人： Sujing GU ,  Ziheng JIN ,  Yanjun WEN ,  Linzheng LI

    IPC分类号： B01D11/02 ,  B01D11/04 ,  B01D61/14

    摘要： A method of preparing a Senna obtusifolia seed extract rich in anthraquinones and a galactomannan extract includes the following steps: (1) crushing Senna obtusifolia seeds into a Senna obtusifolia seed powder; (2) extracting the Senna obtusifolia seed powder with 40-85% ethanol, filtering to obtain an extract solution and a residue; (3) concentrating the extract solution under vacuum to obtain a concentrated extract solution, spray-drying the concentrated extract solution to obtain the Senna obtusifolia seed extract; (4) extracting the residue with membrane filtered water, conducting a centrifugation to obtain a supernatant; (5) adding ammonium sulfate and ethanol to the supernatant to form a two-phase aqueous system, collecting a bottom layer of the two-phase aqueous system; and (6) conducting an ultrafiltration of the bottom layer with a cut-off molecular weight of 50 k-200 k to obtain a galactomannan extract solution, drying the galactomannan extract solution under vacuum to obtain the galactomannan extract.

    METHOD OF PREPARING HOVENIA DULCIS THUNB EXTRACT RICH IN DIHYDROMYRICETIN
    3.
    发明申请
    METHOD OF PREPARING HOVENIA DULCIS THUNB EXTRACT RICH IN DIHYDROMYRICETIN 有权

    公开(公告)号：US20210402323A1

    公开(公告)日：2021-12-30

    申请号：US17346329

    申请日：2021-06-14

    申请人： Ziheng JIN ,  Sujing GU ,  Yanjun WEN ,  Linzheng LI

    发明人： Ziheng JIN ,  Sujing GU ,  Yanjun WEN ,  Linzheng LI

    IPC分类号： B01D11/02 ,  B01D11/04

    摘要： A method for preparing a Hovenia dulcis Thunb extract rich in dihydromyricetin includes the following steps: (1) crushing Hovenia dulcis Thunb seeds to obtain a Hovenia dulcis Thunb powder; (2) adding a 10-95% ethanol solution in an amount of 3-15 times of an amount of the Hovenia dulcis Thunb powder, stirring and extracting at 20° C-80° C. twice; (3) filtering to obtain an extract solution; (4) concentrating the extract solution by evaporating ethanol under reduced pressure to obtain a crude extract, the crude extract having a solid content of 10%-40%; (5) placing the crude extract at −20° C. to 8° C. for 0.5 to 12 hours; (6) centrifuging the crude extract to obtain a supernatant; and (7) spray-drying the supernatant to obtain the Hovenia dulcis Thunb extract.

    D-PSICOSE CRYSTAL AND PREPARATION METHOD THEREOF
    4.
    发明公开
    D-PSICOSE CRYSTAL AND PREPARATION METHOD THEREOF 审中-公开

    公开(公告)号：US20230279037A1

    公开(公告)日：2023-09-07

    申请号：US18154828

    申请日：2023-01-15

    申请人： Sanying WANG ,  Linzheng LI ,  Ziheng JIN ,  Yanjun WEN

    发明人： Sanying WANG ,  Linzheng LI ,  Ziheng JIN ,  Yanjun WEN

    IPC分类号： C07H1/06 ,  C07H3/02

    CPC分类号： C07H1/06 ,  C07H3/02

    摘要： The invention provides a D-psicose crystal and a preparation method thereof. The method comprises: adding a seed crystal to a D-psicose solution and stirring uniformly, subjecting the solution to crystallization by gradient cooling and constant-temperature crystallization alternately at 50-30° C., stopping the crystallization until the temperature of the solution is 30° C., separating the crystal by centrifugation, washing and drying, to obtain a D-psicose crystal. Rather than evaporative crystallization, organic solvent-assisted crystallization and ultrasonication, controllable crystallization by gradient cooling, constant-temperature crystallization, and other technical means are employed. Thus, the invention has low requirements for equipment, simple process, low energy consumption, and low preparation cost, and thus particularly suitable for large-scale industrial production and processing. The purity of the D-psicose crystal obtained is ≥98.5%, 80% by weight or more of the crystal has a grain size in the range of 20-40 meshes, and the yield per crystallization is ≥70%.

    WATER-SOLUBLE LUTEIN ESTER MICROCAPSULES AND A METHOD OF PREPARING THE SAME
    8.
    发明申请
    WATER-SOLUBLE LUTEIN ESTER MICROCAPSULES AND A METHOD OF PREPARING THE SAME 有权

    公开(公告)号：US20210401761A1

    公开(公告)日：2021-12-30

    申请号：US17340292

    申请日：2021-06-07

    申请人： Honglong LI ,  Ziheng JIN ,  Xiaosong XU ,  Linzheng LI ,  Wenjin ZHANG ,  Chunfeng YU ,  Huiting XIA

    发明人： Honglong LI ,  Ziheng JIN ,  Xiaosong XU ,  Linzheng LI ,  Wenjin ZHANG ,  Chunfeng YU ,  Huiting XIA

    IPC分类号： A61K9/50

    摘要： A method of preparing water-soluble lutein ester microcapsules includes: mixing marigold flower particles with an extracting solvent, refluxing at 65-85° C.; removing the extracting solvent to obtain a crude extract; washing the crude extract with a washing solvent; removing the washing solvent to obtain a crude lutein ester; adding an oil-phase antioxidant and a vegetable oil to the crude lutein ester, mixing and heating at 90-100° C. to obtain a lutein ester oil phase; adding a wall material, an emulsifier, a water-phase antioxidant, and a water-phase filler into water, and heating to obtain a water phase; adding the lutein ester oil phase to the water phase under a high-speed shearing, mixing evenly, and homogenizing to obtain a lutein ester emulsion; drying twice to obtain semi-finished lutein ester microcapsules; and solidifying to obtain the lutein ester microcapsules. Water-soluble lutein ester microcapsules prepared by the method are also disclosed.