Patents by Inventor Xiwei Peng

Xiwei Peng 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 producing lysine by utilizing adsorption and immobilized fermentation of recombinant corynebacterium glutamicum
    Patent number: 11098331
    Abstract: The invention discloses a method for producing lysine by utilizing adsorption and immobilized fermentation of a recombinant Corynebacterium glutamicum, wherein the recombinant Corynebacterium glutamicum is constructed by simultaneously overexpressing an adenosine triphosphate ATPase while knocking out an extracellular nuclease ExeR in a Corynebacterium glutamicum. The recombinant Corynebacterium glutamicum can effectively improve eDNA secretion of the Corynebacterium glutamicum and reduce eDNA degradation of the Corynebacterium glutamicum, so that the Corynebacterium glutamicum can be more easily adsorbed on a surface of a solid carrier for immobilized fermentation, such that a yield of continuous immobilized fermentation of the Corynebacterium glutamicum is increased by 49.67% than that of free fermentation of an original bacterium, and a fermentation cycle is shortened by 29.17%.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: August 24, 2021
    Assignee: Nanjing Tech University
    Inventors: Hanjie Ying, Dong Liu, Yong Chen, Pingkai Ouyang, Qingguo Liu, Huanqing Niu, Bin Yu, Xiwei Peng, Ming Lei, Xingyuan Cao
  • METHOD FOR PRODUCING LYSINE BY UTILIZING ADSORPTION AND IMMOBILIZED FERMENTATION OF RECOMBINANT CORYNEBACTERIUM GLUTAMICUM
    Publication number: 20210147887
    Abstract: The invention discloses a method for producing lysine by utilizing adsorption and immobilized fermentation of a recombinant Corynebacterium glutamicum, wherein the recombinant Corynebacterium glutamicum is constructed by simultaneously overexpressing an adenosine triphosphate ATPase while knocking out an extracellular nuclease ExeR in a Corynebacterium glutamicum. The recombinant Corynebacterium glutamicum can effectively improve eDNA secretion of the Corynebacterium glutamicum and reduce eDNA degradation of the Corynebacterium glutamicum, so that the Corynebacterium glutamicum can be more easily adsorbed on a surface of a solid carrier for immobilized fermentation, such that a yield of continuous immobilized fermentation of the Corynebacterium glutamicum is increased by 49.67% than that of free fermentation of an original bacterium, and a fermentation cycle is shortened by 29.17%.
    Type: Application
    Filed: December 10, 2020
    Publication date: May 20, 2021
    Inventors: Hanjie Ying, Dong Liu, Yong Chen, Pingkai Ouyang, Qingguo Liu, Huanqing Niu, Bin Yu, Xiwei Peng, Ming Lei, Xingyuan Cao