Patents by Inventor Junjia CHEN

Junjia CHEN 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).

  • Method for preparing okra polygalacturonic acid having uric acid-lowering effect
    Patent number: 11479616
    Abstract: An okra polygalacturonic acid having a uric acid-lowering effect, a method for preparing the same, and use of the same are disclosed. The method includes: smashing an okra, lixiviating the okra in ethanol, and filtering to obtain a filtrate and a residue; removing the filtrate, and lixiviating the residue in heated water to obtain an extraction solution; adding the ethanol into the extraction solution to precipitate okra crude polysaccharides; purifying the okra crude polysaccharides over an anion exchange column by eluting with water or a NaCl solution, a Tris-HCl solution or a NaCl-containing Tris-HCl solution, or a phosphate solution or a NaCl-containing phosphate solution, and collecting a fraction eluted by the NaCl solution, the NaCl-containing Tris-HCl solution, or the NaCl-containing phosphate solution; and concentrating, dialyzing and drying the fraction to obtain the okra polygalacturonic acid.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: October 25, 2022
    Assignee: Institute of Biological and Medical Engineering, Guangdong Academy of Sciences
    Inventors: Juan Liu, Junjia Chen, Chuanli Lu, Nianfang Ma, Peizi Kang
  • METHOD FOR PREPARING OKRA POLYGALACTURONIC ACID HAVING URIC ACID-LOWERING EFFECT
    Publication number: 20220025074
    Abstract: An okra polygalacturonic acid having a uric acid-lowering effect, a method for preparing the same, and use of the same are disclosed. The method includes: smashing an okra, lixiviating the okra in ethanol, and filtering to obtain a filtrate and a residue; removing the filtrate, and lixiviating the residue in heated water to obtain an extraction solution; adding the ethanol into the extraction solution to precipitate okra crude polysaccharides; purifying the okra crude polysaccharides over an anion exchange column by eluting with water or a NaCl solution, a Tris-HCl solution or a NaCl-containing Tris-HCl solution, or a phosphate solution or a NaCl-containing phosphate solution, and collecting a fraction eluted by the NaCl solution, the NaCl-containing Tris-HCl solution, or the NaCl-containing phosphate solution; and concentrating, dialyzing and drying the fraction to obtain the okra polygalacturonic acid.
    Type: Application
    Filed: December 31, 2020
    Publication date: January 27, 2022
    Applicant: Institute of Bioengineering, Guangdong Academy of Sciences
    Inventors: Juan LIU, Junjia CHEN, Chuanli LU, Nianfang MA, Peizi KANG