Patents by Inventor Panpan XING

Panpan XING 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: 20240350443
    Abstract: A composition, formulation, preparation method and use for a glutathione precursor. The composition comprises, in parts by weight: a selenium-containing compound; a glutathione precursor; a zinc-containing compound. A powder obtained by mixing the present composition has good mixing uniformity and good fluidity, and facilitates filling in a filling capsule; and a capsule containing the composition has the effects of liver protection, oxidation resistance, and immunity enhancement.
    Type: Application
    Filed: August 9, 2022
    Publication date: October 24, 2024
    Inventors: Lei YANG, Chengjun ZHU, Wenwen ZHANG, Panpan XING, Xiaomeng WANG, Haixia SU, Liyan ZHA, Dawei LIU, Hao FENG
  • Patent number: 11639512
    Abstract: Provided is a method for screening a Corynebacterium constitutive expression vector promoter on the basis of transcriptome sequencing; and further provided are the Corynebacterium constitutive expression vector promoter screened on the basis of transcriptome sequencing, an expression vector comprising the promoter, a recombination strain obtained by transforming a host cell Corynebacterium glutamicum using the expression vector, and applications thereof.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: May 2, 2023
    Inventors: Panpan Xing, Haixia Su, Jiong Wang, Xuechen Mei, Kun Wan, Mengjun Song, Jing Li, Aifu Liu
  • Patent number: 11319563
    Abstract: Disclosed is a L-isoleucine-producing Corynebacterium glutamicum fermentation medium, comprising a basal medium and a growth factor, wherein the growth factor consists of choline, betaine and vitamin B6, and the contents of each ingredient in the fermentation medium are: 0.2-1 g/L choline, 0.25-0.5 mg/L betaine, and 0.05-0.3 mg/L vitamin B6. Also disclosed is a method for cultivating the L-isoleucine-producing Corynebacterium glutamicum, comprising: inoculating the L-isoleucine-producing Corynebacterium glutamicum onto the fermentation medium, wherein the volume of the bacteria liquid accounts for 5-20% of the volume of the fermentation medium, adjusting the pH to 6.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: May 3, 2022
    Assignee: WUHAN GRAND HOYO CO., LTD.
    Inventors: Xuechen Mei, Jiong Wang, Kun Wan, Mengjun Song, Panpan Xing, Haixia Su, Jing Li, Aifu Liu
  • Publication number: 20200024625
    Abstract: Provided is a method for screening a corynebacterium constitutive expression vector promoter on the basis of transcriptome sequencing; and further provided are the corynebacterium constitutive expression vector promoter screened on the basis of transcriptome sequencing, an expression vector comprising the promoter, a recombination strain obtained by transforming a host cell Corynebacterium glutamicum using the expression vector, and applications thereof.
    Type: Application
    Filed: March 14, 2018
    Publication date: January 23, 2020
    Inventors: Panpan XING, Haixia SU, Jiong WANG, Xuechen MEI, Kun WAN, Mengjun SONG, Jing LI, Aifu LIU
  • Publication number: 20190276862
    Abstract: Disclosed is a L-isoleucine-producing Corynebacterium glutamicum fermentation medium, comprising a basal medium and a growth factor, wherein the growth factor consists of choline, betaine and vitamin B6, and the contents of each ingredient in the fermentation medium are: 0.2-1 g/L choline, 0.25-0.5 mg/L betaine, and 0.05-0.3 mg/L vitamin B6. Also disclosed is a method for cultivating the L-isoleucine-producing Corynebacterium glutamicum, comprising: inoculating the L-isoleucine-producing Corynebacterium glutamicum onto the fermentation medium, wherein the volume of the bacteria liquid accounts for 5-20% of the volume of the fermentation medium, adjusting the pH to 6.
    Type: Application
    Filed: December 1, 2017
    Publication date: September 12, 2019
    Inventors: Xuechen MEI, Jiong WANG, Kun WAN, Mengjun SONG, Panpan XING, Haixia SU, Jing LI, Aifu LIU