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).

  • Publication number: 20150351433
    Abstract: The present invention provides a xylanase comprising amino acid sequence as set forth in SEQ ID No.1, SEQ ID No.2 or SEQ ID No.8, and a nucleotide sequence encoding said xylanase shown as SEQ ID No.3, SEQ ID No.4 or SEQ ID No.5. The present invention also provides a method of preparing a corn based product comprising contacting a plant composition comprising corn or a corn by-product or a combination thereof with said xylanase.
    Type: Application
    Filed: August 3, 2012
    Publication date: December 10, 2015
    Applicant: DUPONT NUTRITION BIOSCIENCES APS
    Inventors: Susan Lund Arent, Brian Sogaard Laursen, Elijah Gituanjah Kiarie, Luis Fernando Romero Millan, Zhenghong Zhang, Rosalyn Lau, Zheyong Yu, Soren Dalsgaard
  • Publication number: 20150337247
    Abstract: New enzymes with improved properties and compositions comprising these enzymes suitable for use in the production of a food, feed, or malt beverage product, such as in a brewing process, are provided.
    Type: Application
    Filed: August 3, 2012
    Publication date: November 26, 2015
    Applicant: DUPONT NUTRITION BIOSCIENCES APS
    Inventors: Jens Frisbaek SORENSEN, Lone Brond MILLER, Zhenghong ZHANG, Zheyong YU, Ling HUA
  • Publication number: 20150240223
    Abstract: A fungal alpha amylase is provided from Talaromyces emersonii (TeAmy1), along with variants of the same. TeAmy1 has an optimal pH of 3.5 and is operable over a temperature range of at least 30 75° C., allowing the enzyme to be used in combination with a glucoamylase 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. TeAmy1 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: September 17, 2013
    Publication date: August 27, 2015
    Inventors: Ling Hua, Zhongmei Tang, Casper Willem Vroemen, Bo Zhang, Zhenghong Zhang
  • Publication number: 20150210993
    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: August 2, 2013
    Publication date: July 30, 2015
    Applicant: DUPONT NUTRITION BIOSCIENCES APS
    Inventors: Susan Lund Arent, Brian Sogaard Laursen, Elijah Gituanjah Kiarie, Luis Fernando Romero Millan, Zhenghong Zhang, Rosalyn Lau, Zheyong Yu, Floor Klaaske Kooy, Jan Hendrik Van Tuijl, Bart Christiaan Koops, Mads Brogger Pedersen, Soren Dalsgaard
  • Publication number: 20150150282
    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: August 2, 2013
    Publication date: June 4, 2015
    Applicant: DUPONT NUTRITION BIOSCIENCES APS
    Inventors: Susan Lund Arent, Brian Sogaard Laursen, Elijah Gituanjah Kiarie, Luis Fernando Romero Millan, Zhenghong Zhang, Rosalyn Lau, Zheyong Yu, Mads Brogger Pedersen, Soren Dalsgaard