Patents by Inventor Jiangen YAN

Jiangen YAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240287630
    Abstract: The embodiment of the present disclosure provides a method for crystallizing compound sugar solution of xylose and sucrose, including: evaporating a mixed solution containing sucrose and xylose to obtain an evaporated mixed solution, adjusting a temperature to a range of 70° C.-75° C., dropwise adding an organic solvent to the evaporated mixed solution, adding sucrose seed crystals, and continuing stirring to obtain a solution, when seed crystals grow in the solution, dropping the temperature to a range of 40° C.-60° C. at a rate of 10° C./h to obtain the mixed sugar solution; centrifuging and drying to obtain a finished product of the compound sugar crystals of the xylose and the sucrose. The obtained finished product has a complete crystal form similar to the sucrose and a sweetness similar to the sucrose and a uniform taste, which meets preferences of the consumers.
    Type: Application
    Filed: May 5, 2024
    Publication date: August 29, 2024
    Applicant: ZHEJIANG HUAKANG PHARMACEUTICAL CO., LTD.
    Inventors: Shufang QIN, Mian LI, Qiang WU, Wulong YANG, Huan ZHOU, Yinyin LIU, Jiangen YAN
  • Patent number: 11987852
    Abstract: The embodiment of the present disclosure provides a method for crystallizing compound sugar solution of xylose and sucrose, including: introducing a mixed solution of sucrose crystals, xylose crystals and water into a crystallization device, setting a stirring speed in a range of 60 rpm-120 rpm, a temperature in a range of 75° C.-80° C., a vacuum pump pressure in a range of 50 mbar-200 mbar, evaporating the mixed solution until a Brix value of the mixed solution reaches a range of 78 Brix-81 Brix, and stopping the vacuum evaporation, adjusting the temperature to a range of 70° C.-75° C., dropwise adding food-grade isopropanol solution or ethanol solution to the evaporated mixed solution, adding sucrose seed crystals, and continuing stirring to obtain a solution, when small seed crystals grow in the solution, dropping the temperature to a range of 40° C.-60° C. at a rate of 10° C./h, and then stirring for 6 h to obtain the mixed sugar solution; centrifuging and drying at 40° C.-60° C.
    Type: Grant
    Filed: July 6, 2023
    Date of Patent: May 21, 2024
    Assignee: ZHEJIANG HUAKANG PHARMACEUTICAL CO., LTD
    Inventors: Shufang Qin, Mian Li, Qiang Wu, Wulong Yang, Huan Zhou, Yinyin Liu, Jiangen Yan
  • Publication number: 20230349012
    Abstract: The embodiment of the present disclosure provides a method for crystallizing compound sugar solution of xylose and sucrose, including: introducing a mixed solution of sucrose crystals, xylose crystals and water into a crystallization device, setting a stirring speed in a range of 60 rpm-120 rpm, a temperature in a range of 75° C.-80° C., a vacuum pump pressure in a range of 50 mbar-200 mbar, evaporating the mixed solution until a Brix value of the mixed solution reaches a range of 78 Brix-81 Brix, and stopping the vacuum evaporation, adjusting the temperature to a range of 70° C.-75° C., dropwise adding food-grade isopropanol solution or ethanol solution to the evaporated mixed solution, adding sucrose seed crystals, and continuing stirring to obtain a solution, when small seed crystals grow in the solution, dropping the temperature to a range of 40° C.-60° C. at a rate of 10° C./h, and then stirring for 6 h to obtain the mixed sugar solution; centrifuging and drying at 40° C.-60° C.
    Type: Application
    Filed: July 6, 2023
    Publication date: November 2, 2023
    Applicant: ZHEJIANG HUAKANG PHARMACEUTICAL CO., LTD.
    Inventors: Shufang QIN, Mian LI, Qiang WU, Wulong YANG, Huan ZHOU, Yinyin LIU, Jiangen YAN