Patents by Inventor Xixi Cai

Xixi Cai 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).

  • Preparation method of anti-oxidation polypeptide
    Patent number: 11408022
    Abstract: A method of preparing an anti-oxidation polypeptide having an amino acid sequence of SEQ ID NO:1 includes enzymatic hydrolysis of black shark skins, which serve as the raw material, with alkali protease, separation, purification, freezing, and drying to obtain the anti-oxidation polypeptide. Enzymatic hydrolysis conditions include 7.0-9.0 pH value, 40-50° C. temperature, 4.0-6.0 h enzymatic hydrolysis time, 2.0-4.0% primer concentration, and 9.0-10.0 wt % of enzymes.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: August 9, 2022
    Assignee: FU ZHOU UNIVERSITY
    Inventors: Shaoyun Wang, Xixi Cai, Qingyan He, Ana Yan, Qianwen Ye
  • Preparation method of anti-oxidation polypeptide
    Publication number: 20220145349
    Abstract: A method of preparing an anti-oxidation polypeptide having an amino acid sequence of SEQ ID NO:1 includes enzymatic hydrolysis of black shark skins, which serve as the raw material, with alkali protease, separation, purification, freezing, and drying to obtain the anti-oxidation polypeptide. Enzymatic hydrolysis conditions include 7.0-9.0 pH value, 40-50° C. temperature, 4.0-6.0 h enzymatic hydrolysis time, 2.0-4.0% primer concentration, and 9.0-10.0 wt % of enzymes.
    Type: Application
    Filed: July 19, 2018
    Publication date: May 12, 2022
    Inventors: Shaoyun Wang, Xixi Cai, Qingyan He, Ana Yan, Qianwen Ye