Patents by Inventor Zhenghong Zhang

Zhenghong Zhang 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).

  • Patent number: 10612014
    Abstract: The present invention relates to a method for solubilizing arabinoxylan-containing material (particularly insoluble arabinoxylan-containing material), comprising admixing a xylan-containing material with a xylanase comprising a polypeptide sequence shown herein as SEQ ID No. 3, SEQ ID No. 2, SEQ ID No. 1, SEQ ID No. 9, SEQ ID No. 10, SEQ ID No. 11 or SEQ ID No. 15, or a variant, homolog, fragment or derivative thereof having at least 75% identity with SEQ ID No. 3 or SEQ ID No. 2 or SEQ ID No. 1 or SEQ ID No. 9 or SEQ ID No. 10 or SEQ ID No. 11 or SEQ ID No. 15; or a polypeptide sequence which comprises SEQ ID No. 3, SEQ ID No. 2, SEQ ID No. 1, SEQ ID No. 9, SEQ ID No. 10, SEQ ID No. 11 or SEQ ID No. 15 with a conservative substitution of at least one of the amino acids; or a xylanase which is encoded by a nucleotide sequence shown herein as SEQ ID No. 6, SEQ ID No. 5, SEQ ID No. 4, SEQ ID No. 12, SEQ ID No. 13, SEQ ID No. 14, SEQ ID No. 16, SEQ ID No. 17 or SEQ ID No.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: April 7, 2020
    Assignee: DUPONT NUTRITION BIOSCIENCES APS
    Inventors: Luis Fernando Romero Millan, Susan Arent Lund, Brian Soegaard Laursen, Elijah G Kiarie, Zhenghong Zhang, Rosalyn Lau, Zheyong Yu, Floor K Kooy, Jan Hendrik A Van Tuijl, Bart C Koops, Mads Broegger Pedersen, Soeren Dalsgaard
  • Publication number: 20200080121
    Abstract: Enzymatic reactions are disclosed herein comprising water, glucose-1-phosphate, cellodextrin, and at least one cellodextrin phosphorylase enzyme comprising an amino acid sequence that is at least 90% identical to SEQ ID NO:2 or SEQ ID NO:6. These reactions produce a low molecular weight, insoluble cellulose with enhanced features.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 12, 2020
    Inventors: NATNAEL BEHABTU, AYROOKARAN J. POULOSE, ZHEYONG YU, ZHENGHONG ZHANG
  • Publication number: 20200071685
    Abstract: Disclosed are methods and compositions using glycoside hydrolases, such as an alpha-L-fucosidases, to prevent and/or treat a pathogenic infection and/or diarrhea in an animal wherein the pathogenic infection is caused by a pathogen capable of binding to an animal intestinal cell wherein said binding of the pathogen is dependent on the presence of a pathogen binding site having at least one glycan structure substituted with at least one alpha-1,2-L-fucose moiety comprising administering to the animal an effective amount of a glycoside hydrolase capable of removing the at least one alpha-1,2-L-fucose moiety from the pathogen binding site.
    Type: Application
    Filed: February 27, 2018
    Publication date: March 5, 2020
    Inventor: Zhenghong Zhang
  • Publication number: 20190322990
    Abstract: Reaction compositions are disclosed herein comprising at least water, alpha-glucose-1-phosphate (alpha-G1P), an acceptor molecule, and a beta-1,3-glucan phosphorylase enzyme. These reactions can synthesize oligosaccharides and polysaccharides with beta-1,3 glycosidic linkages. Further disclosed are methods of isolating beta-1,3-glucan.
    Type: Application
    Filed: April 15, 2019
    Publication date: October 24, 2019
    Inventors: ZHEYONG YU, SLAVKO KRALJ, NATNAEL BEHABTU, ZHENGHONG ZHANG, LAURIE A HOWE
  • Publication number: 20190264247
    Abstract: Reaction compositions are disclosed herein comprising at least water, beta-glucose-1-phosphate (beta-G1P), an acceptor molecule, and an alpha-1,3-glucan phosphorylase enzyme. These reactions can synthesize oligosaccharides and polysaccharides with alpha-1,3 glycosidic linkages. Further disclosed are alpha-1,3-glucan phosphorylase enzymes and methods of use thereof.
    Type: Application
    Filed: February 21, 2019
    Publication date: August 29, 2019
    Inventors: Zheyong Yu, Slavko Kralj, Zhenghong Zhang, Laurie A. Howe
  • Patent number: 10392641
    Abstract: Enzymatic reactions are disclosed herein comprising water, glucose-1-phosphate, cellodextrin, and at least one cellodextrin phosphorylase enzyme comprising an amino acid sequence that is at least 90% identical to SEQ ID NO:2 or SEQ ID NO:6. These reactions produce a low molecular weight, insoluble cellulose with enhanced features.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: August 27, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Natnael Behabtu, Aryookaran J. Poulose, Zheyong Yu, Zhenghong Zhang
  • Patent number: 10294466
    Abstract: The present disclosure relates to polypeptides having alpha-glucosidase activity isolated, derived or derivable from Rasamsonia or engineered polypeptides having alpha-glucosidase activity isolated, derived or derivable from Rasamsonia homologs. The present disclosure also pertains to polynucleotides encoding the polypeptides, nucleic acid constructs, vectors, host cells and mutant cells comprising the polynucleotides. The disclosure further pertains to compositions comprising such polypeptides, methods of producing the polypeptides and compositions, as well as methods for using such polypeptides and compositions for industrial applications.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: May 21, 2019
    Assignee: DANISCO US INC.
    Inventors: Zheyong Yu, Zhenghong Zhang, Jing Ge, Zhen Qian, Guoqing Liu, Zhiyong Xie, Zhongmei Tang
  • Publication number: 20190100782
    Abstract: Enzymatic reactions are disclosed herein comprising water, glucose-1-phosphate, cellodextrin, and at least one cellodextrin phosphorylase enzyme comprising an amino acid sequence that is at least 90% identical to SEQ ID NO:2 or SEQ ID NO:6. These reactions produce a low molecular weight, insoluble cellulose with enhanced features.
    Type: Application
    Filed: November 15, 2018
    Publication date: April 4, 2019
    Inventors: Natnael Behabtu, Ayrookaran J. Poulose, Zheyong Yu, Zhenghong Zhang
  • Publication number: 20190090525
    Abstract: The present invention relates to a method of preparing a corn based product said method comprising contacting a plant composition comprising (consisting of or consisting essentially of) corn or a corn by-product or a combination thereof with a xylanase comprising: i) a polypeptide as set forth in SEQ ID No. 8 or SEQ ID No. 7 or SEQ ID No. 6; or ii) a variant, fragment homologue, fragment or derivative thereof having at least 85% identity with SEQ ID No. 8 or SEQ ID No. 7 or SEQ ID No. 6; or with a xylanase encoded by: a) a nucleotide sequence shown herein as SEQ ID No. 3. SEQ ID No. 2 or SEQ ID No. 1; or b) a nucleotide sequence which can hybridize to the complement of SEQ ID No. 3. SEQ ID No. 2 or SEQ ID No. 1 under high stringency conditions: or c) a nucleotide sequence which has at least 80% identity with SEQ ID No. 3. SEQ ID No. 2 or SEQ ID No. 1. The present invention further relates to the use of the enzyme to produce corn based feedstuffs.
    Type: Application
    Filed: October 10, 2018
    Publication date: March 28, 2019
    Inventors: Susan Arent Lund, Brian Soegaard Laursen, Elijah G. Kiarie, Luis Fernando Romero Millan, Zhenghong Zhang, Rosalyn Lau, Zheyong Yu, Mads Broegger Pedersen, Soeren Dalsgaard
  • Publication number: 20190010473
    Abstract: Described are methods and compositions relating to granular starch-converting glucoamylases and ?-amylases. The enzymes can be used to perform enzymatic starch hydrolysis of granular starch at or below the gelatinization temperature of insoluble granular starch.
    Type: Application
    Filed: December 20, 2016
    Publication date: January 10, 2019
    Inventors: Bart C. Koops, Paula Johanna Maria Teunissen, Marco Van Brussel-Zwijnen, Martijn Scheffers, Kees-Jan Guijt, Zhengzheng Zou, Zhongmei Tang, Zhen Qian, Jing Ge, Zhenghong Zhang
  • Publication number: 20190002937
    Abstract: Described are methods and compositions relating to granular starch-converting glucoamylases and ?-amylases. The enzymes can be used to perform enzymatic starch hydrolysis of granular starch at or below the gelatinization temperature of insoluble granular starch.
    Type: Application
    Filed: December 20, 2016
    Publication date: January 3, 2019
    Inventors: Bart C. Koops, Paula Johanna Maria Teunissen, Marco Van Brussel-Zwijnen, Martijn Scheffers, Kees-Jan Guijt, Zhengzheng Zou, Zhongmei Tang, Zhen Qian, Jing Ge, Zhenghong Zhang
  • Publication number: 20190002854
    Abstract: Described are methods and compositions relating to granular starch-converting glucoamylases and ?-amylases. The enzymes can be used to perform enzymatic starch hydrolysis of granular starch at or below the gelatinization temperature of insoluble granular starch.
    Type: Application
    Filed: December 20, 2016
    Publication date: January 3, 2019
    Inventors: Bart C. Koops, Paula Johanna Maria Teunissen, Marco Van Brussel-Zwijnen, Martijn Scheffers, Kees-Jan Guijt, Zhengzheng Zou, Zhongmei Tang, Zhen Qian, Jing Ge, Zhenghong Zhang
  • Publication number: 20180334696
    Abstract: Compositions are disclosed herein comprising cellulose that has (i) a weight-average degree of polymerization (DPw) of about 10 to about 1000, (ii) a cellulose II crystal structure, and that is (iii) insoluble in an aqueous composition. Further disclosed are cellodextrin phosphorylase enzymes that synthesize this cellulose material. Methods of using cellulose for viscosity modification or film/coating applications are also disclosed.
    Type: Application
    Filed: December 15, 2015
    Publication date: November 22, 2018
    Inventors: Natnael Behabtu, Ayrookaran J. Poulose, Zheyong Yu, Zhenghong Zhang
  • Patent number: 10131929
    Abstract: Enzymatic reactions are disclosed herein comprising water, glucose-1-phosphate, cellodextrin, and at least one cellodextrin phosphorylase enzyme comprising an amino acid sequence that is at least 90% identical to SEQ ID NO:2 or SEQ ID NO:6. These reactions produce a low molecular weight, insoluble cellulose with enhanced features.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: November 20, 2018
    Assignee: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Natnael Behabtu, Ayrookaran J. Poulose, Zheyong Yu, Zhenghong Zhang
  • Publication number: 20180282385
    Abstract: Disclosed herein are proteins capable of forming glucans having alpha-1,2 linkages/branches, reactions and methods for producing such glucan, compositions comprising such glucan, and various applications thereof.
    Type: Application
    Filed: November 22, 2016
    Publication date: October 4, 2018
    Inventors: Qiong Cheng, Robert DiCosimo, Jahnavi Chandra Prasad, Zhenghong Zhang
  • Publication number: 20180094253
    Abstract: The present invention relates to a method for solubilising arabinoxylan-containing material (particularly insoluble arabinoxylan-containing material), comprising admixing a xylan-containing material with a xylanase comprising a polypeptide sequence shown herein as SEQ ID No. 3, SEQ ID No. 2, SEQ ID No. 1, SEQ ID No. 9, SEQ ID No. 10, SEQ ID No. 11 or SEQ ID No. 15, or a variant, homologue, fragment or derivative thereof having at least 75% identity with SEQ ID No. 3 or SEQ ID No. 2 or SEQ ID No. 1 or SEQ ID No. 9 or SEQ ID No. 10 or SEQ ID No. 11 or SEQ ID No. 15; or a polypeptide sequence which comprises SEQ ID No. 3. SEQ ID No. 2, SEQ ID No. 1, SEQ ID No. 9, SEQ ID No. 10, SEQ ID No. 11 or SEQ ID No. 15 with a conservative substitution of at least one of the amino acids; or a xylanase which is encoded by a nucleotide sequence shown herein as SEQ ID No. 6, SEQ ID No. 5, SEQ ID No. 4, SEQ ID No. 12, SEQ ID No. 13, SEQ ID No. 14, SEQ ID No. 16, SEQ ID No. 17 or SEQ ID No.
    Type: Application
    Filed: December 15, 2017
    Publication date: April 5, 2018
    Inventors: LUIS FERNANDO ROMERO MILLAN, SUSAN ARENT LUND, BRIAN SOEGAARD LAURSEN, ELIJAH G. KIARIE, ZHENGHONG ZHANG, ROSALYN LAU, ZHEYONG YU, FLOOR K KOOY, JAN HENDRIK A VAN TUIJL, BART C KOOPS, MADS BROEGGER PEDERSEN, SOEREN DALSGAARD
  • Publication number: 20180016563
    Abstract: The present disclosure relates to polypeptides having alpha-glucosidase activity isolated, derived or derivable from Rasamsonia or engineered polypeptides having alpha-glucosidase activity isolated, derived or derivable from Rasamsonia homologs. The present disclosure also pertains to polynucleotides encoding the polypeptides, nucleic acid constructs, vectors, host cells and mutant cells comprising the polynucleotides. The disclosure further pertains to compositions comprising such polypeptides, methods of producing the polypeptides and compositions, as well as methods for using such polypeptides and compositions for industrial applications.
    Type: Application
    Filed: February 25, 2016
    Publication date: January 18, 2018
    Applicant: DANISCO US INC.
    Inventors: Zheyong YU, Zhenghong ZHANG, Jing GE, Zhen QIAN, Guoqing LIU, Zhiyong XIE, Zhongmei TANG
  • Publication number: 20170327857
    Abstract: Enzymatic reactions are disclosed herein comprising water, glucose-1-phosphate, cellodextrin, and at least one cellodextrin phosphorylase enzyme comprising an amino acid sequence that is at least 90% identical to SEQ ID NO:2 or SEQ ID NO:6. These reactions produce a low molecular weight, insoluble cellulose with enhanced features.
    Type: Application
    Filed: December 15, 2015
    Publication date: November 16, 2017
    Inventors: Natnael Behabtu, Ayrookaran J. Poulose, Zheyong Yu, Zhenghong Zhang
  • Publication number: 20170198324
    Abstract: An enzymatically produced soluble ?-glucan fiber composition is provided suitable for use as a digestion resistant fiber in food and feed applications. The soluble ?-glucan fiber composition can be blended with one or more additional food ingredients to produce fiber-containing compositions. Methods for the production and use of compositions comprising the soluble ?-glucan fiber are also provided.
    Type: Application
    Filed: May 22, 2015
    Publication date: July 13, 2017
    Inventors: Qiong Cheng, Robert Dicosimo, Arthur Ouwehand, Zheng You, Jian Ping Lai, Zheyong YU, Zhenghong ZHANG
  • Publication number: 20160040202
    Abstract: A fungal alpha-amylase is provided from Aspergillus fumigatus (AfAmy1). AfAmy1 has an optimal pH of 3.5 and is operable at 30-75 degrees C., allowing the enzyme to be used in combination with a glucoamylase and a pullulanase in a saccharification reaction. This obviates the necessity of running a saccharification reaction as a batch process, where the pH and temperature must be readjusted for optimal use of the alpha-amylase or glucoamylase. AfAmy1 also catalyzes the saccharification of starch substrates to an oligosaccharide composition significantly enriched in DP2 and (DP1+DP2) compared to the products of saccharification catalyzed by an alpha-amylase from Aspergillus kawachii. This facilitates the utilization of the oligosaccharide composition by a fermenting organism in a simultaneous saccharification and fermentation process, for example.
    Type: Application
    Filed: December 5, 2013
    Publication date: February 11, 2016
    Inventors: Ling Hua, Martijn Scheffers, Marco Van Brussel, Casper Vroemen, Bo Zhang, Zhenghong Zhang