Patents by Inventor Jesper Vallentin Kierulff

Jesper Vallentin Kierulff 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).

  • Modification of polysaccharides by means of a phenol oxidizing enzyme
    Patent number: 6660503
    Abstract: The present invention deals with a process for oxidation of a hydroxy group of C1 and/or C2 and/or C3 and/or C4 and/or C5 and/or C6 of a sugar monomer of an oligo- or a polysaccharide comprising contacting, in an aqueous medium, the oligo- or the polysaccharide with a phenol oxidizing enzyme and an enhancing agent, whereby an oligo- or a polysaccharide with altered characteristics compared to the native oligo- or polysaccharide is created.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: December 9, 2003
    Assignee: Novozymes A/S
    Inventor: Jesper Vallentin Kierulff
  • Modification of polysaccharides by means of a phenol oxidizing enzyme
    Patent number: 6346401
    Abstract: The present invention deals with a process for oxidation of a hydroxy group of C1 and/or C2 and/or C3 and/or C4 and/or C5 and/or C6 of a sugar monomer of an oligo- or a polysaccharide comprising contacting, in an aqueous medium, the oligo- or the polysaccharide with a phenol oxidizing enzyme and an enhancing agent, whereby an oligo- or a polysaccharide with altered characteristics compared to the native oligo- or polysaccharide is created.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: February 12, 2002
    Assignee: Novozymes A/S
    Inventor: Jesper Vallentin Kierulff
  • Modification of polysaccharides by means of a phenol oxidizing enzyme
    Publication number: 20010055794
    Abstract: The present invention deals with a process for oxidation of a hydroxy group of C1 and/or C2 and/or C3 and/or C4 and/or C5 and/or C6 of a sugar monomer of an oligo- or a polysaccharide comprising contacting, in an aqueous medium, the oligo- or the polysaccharide with a phenol oxidizing enzyme and an enhancing agent, whereby an oligo- or a polysaccharide with altered characteristics compared to the native oligo- or polysaccharide is created.
    Type: Application
    Filed: July 11, 2001
    Publication date: December 27, 2001
    Applicant: Novozymes A/S
    Inventor: Jesper Vallentin Kierulff
  • Use of a phenol oxidizing enzyme in the treatment of tobacco
    Patent number: 6298859
    Abstract: A process for preparing tobacco, which process comprises the steps of treating a tobacco material with a phenol oxidising enzyme, such as by extracting tobacco with a solvent to provide an extract and a residue; and treating the extract with a phenol oxidising enzyme such as a laccase. An improved tobacco product having a reduced amount of phenolic compounds. This is an alternative or a supplement to a process in which the phenolic compounds are adsorbed onto the insoluble carrier polyvinylpolypyrrolidone (PVPP). In preferred embodiments, the process includes further steps of removing the oxidised phenolic compound, adding adsorbents such as bentonite; removing and/or inactivating the enzyme; and concentrating the extract. Preferred phenol oxidising enzymes are peroxidases and laccases. The thus treated extract is advantageously re-combined with the tobacco residue and further processed to provide a tobacco article for smoking.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: October 9, 2001
    Assignee: Novozymes A/S
    Inventors: Jesper Vallentin Kierulff, Ole Bill Jørgensen, Tomas Tage Hansen, Anthony James Knox, Yves De Grandpré
  • Modification of polysaccharides by means of a phenol oxidizing enzyme
    Patent number: 6087135
    Abstract: The present invention deals with a process for oxidation of a hydroxy group of C.sub.1 and/or C.sub.2 and/or C.sub.3 and/or C.sub.4 and/or C.sub.5 and/or C.sub.6 of a sugar monomer of an oligo- or a polysaccharide comprising contacting, in an aqueous medium, the oligo- or the polysaccharide with a phenol oxidizing enzyme and an enhancing agent, whereby an oligo- or a polysaccharide with altered characteristics compared to the native oligo- or polysaccharide is created.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: July 11, 2000
    Assignee: Novo Nordisk A/S
    Inventor: Jesper Vallentin Kierulff
  • Bleaching process comprising use of a phenol oxidizing enzyme, a hydrogen peroxide source and an enhancing agent
    Patent number: 5851233
    Abstract: The invention relates to a process for providing a bleached look in the color density of the surface of dyed fabric, especialy cellulosic fabric such as denim, comprising use of a phenol oxidizing enzyme such as a peroxidase or a laccase, a hydrogen peroxide source and a phenothiazine or phenoxazine enhancing agent represented by formula (I).
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: December 22, 1998
    Assignee: Novo Nordisk A/S
    Inventors: Anders Hjelholt Pedersen, Jesper Vallentin Kierulff
  • Bleaching process comprising use of phenol oxidizing enzyme, a hydrogen peroxide source and an enhancing agent
    Patent number: 5752980
    Abstract: The present invention relates to a process for providing a bleached look in the color density of the surface of dyed fabric, especially cellulosic fabric such as denim, comprising use of a phenol oxidizing enzyme such as a peroxidase or a laccase, a hydrogen peroxide source and an enhancing agent represented by formula (I).
    Type: Grant
    Filed: February 4, 1997
    Date of Patent: May 19, 1998
    Assignee: Novo Nordisk A/S
    Inventors: Anders Hjelholt Pedersen, Jesper Vallentin Kierulff