Patents by Inventor Daihuan LI

Daihuan LI 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 fermentation-production of pentanediamine comprising carbon dioxide stripping technique
    Patent number: 11060080
    Abstract: A method for fermentation-production of a pentanediamine, comprising: culturing a cell expressing a lysine decarboxylase to obtain a whole cell fermentation broth comprising a pentanediamine; and extracting the pentanediamine from the whole cell fermentation broth, and striping the whole cell fermentation broth of carbon dioxide contained therein before adding a strong base. The method greatly increases a production volume of the pentanediamine.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: July 13, 2021
    Assignee: HEILONGJIANG EPPEN NEW MATERIALS CO., LTD.
    Inventors: Jiyin Ma, Tingyi Wen, Shuwen Liu, Yong Liang, Daihuan Li, Yun Zhang, Xiuling Shang, Chunguang Zhao, Xiaowei Guo, Gang Meng
  • METHOD FOR FERMENTATION-PRODUCTION OF PENTANEDIAMINE COMPRISING CARBON DIOXIDE STRIPPING TECHNIQUE
    Publication number: 20190322995
    Abstract: A method for fermentation-production of a pentanediamine, comprising: culturing a cell expressing a lysine decarboxylase to obtain a whole cell fermentation broth comprising a pentanediamine; and extracting the pentanediamine from the whole cell fermentation broth, and striping the whole cell fermentation broth of carbon dioxide contained therein before adding a strong base. The method greatly increases a production volume of the pentanediamine.
    Type: Application
    Filed: May 16, 2017
    Publication date: October 24, 2019
    Applicant: Ningxia EPPEN Biotech Co., Ltd
    Inventors: Jiyin MA, Tingyi WEN, Shuwen LIU, Yong LIANG, Daihuan LI, Yun ZHANG, Xiuling SHANG, Chunguang ZHAO, Xiaowei GUO, Gang MENG