Patents by Inventor Satu Hildich

Satu Hildich 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).

  • Conversion of hexuronic acid to hexaric acid
    Patent number: 8895273
    Abstract: The present invention relates to a method and microbial host strain for converting a hexuronic acid to a hexaric acid. In particular, the invention relates to the conversion of D-galacturonic acid to meso-galactaric acid (mucic acid). The invention also concerns an isolated nucleotide sequence. According to the present method a microbial host strain genetically modified to express uronate dehydrogenase enzyme (EC 1.1.1.203) is contacted with a biomaterial comprising hexuronic acid and the conversion products are recovered. By using the recombinant microorganisms of the present invention it is possible to treat biomaterials comprising hexuronic acids and thereby decrease the amount of hexuronic acids released to the environment.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: November 25, 2014
    Assignee: Teknologian Tutkimuskeskus VTT
    Inventors: Harry Boer, Satu Hildich, Peter Richard, Merja Penttila
  • CONVERSION OF HEXURONIC ACID TO HEXARIC ACID
    Publication number: 20120045804
    Abstract: The present invention relates to a method and microbial host strain for converting a hexuronic acid to a hexaric acid. In particular, the invention relates to the con-version of D-galacturonic acid to meso-galactaric acid (mucic acid). The invention also concerns an isolated nucleotide sequence. According to the present method a microbial host strain genetically modified to express uronate dehydrogenase enzyme (EC 1.1.1.203) is contacted with a biomaterial comprising hexuronic acid and the con-version products are recovered. By using the recombinant microorganisms of the present invention it is possible to treat biomaterials comprising hexuronic acids and thereby decrease the amount of hexuronic acids released to the environment.
    Type: Application
    Filed: December 22, 2009
    Publication date: February 23, 2012
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT
    Inventors: Harry Boer, Satu Hildich, Peter Richard, Merja Penttila