Patents Assigned to Genecor International, Inc.
  • Enzyme feed additive and animal feed
    Patent number: 5612055
    Abstract: An enzyme feed additive is provided comprising a xylanase, a protease, and optionally a .beta.-glucanase. The ratio of the units of xylanase activity per unit amount of the feed additive to the units of .beta.-glucanase activity per same unit amount of the feed additive is 1:0-0.25.Preferably, the xylanase is the low pI xylanase and/or the high pI xylanase obtained from Trichoderma longibrachiatum.Preferably, the protease is a mutant subtilisin comprising a substitution at the amino acid residue position equivalent to tyr+217 of Bacillus amyloliquefaciens subtilisin with leucine.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: March 18, 1997
    Assignees: Genecor International, Inc., Finnfeeds International Limited
    Inventors: Michael R. Bedford, Andrew J. Morgan, Kathleen Clarkson, Hagen K. Schulze
  • Production of Aspergillus niger catalase-R
    Patent number: 5360732
    Abstract: The invention discloses the application of genetic engineering techniques to create novel strains of A. niger which produce high levels of catalase (catR gene product, catalase-R) while generating minimal sodium gluconate waste material.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: November 1, 1994
    Assignee: Genecor International, Inc.
    Inventors: Randy M. Berka, Timothy Fowler, Michael W. Rey
  • Methods of ester hydrolysis
    Patent number: 5244791
    Abstract: A novel method for ester hydrolysis catalyzed by enzymes having an oxyanion hole wherein the amide hydrolysis reaction is minimized. Enzymes are selected or alternatively derived by replacement of amino acid residues, which have minimal hydrogen bonding at or within 15 angstroms of the oxyanion hole.
    Type: Grant
    Filed: June 22, 1992
    Date of Patent: September 14, 1993
    Assignee: Genecor International, Inc.
    Inventor: David A. Estell
  • Microbiological oil prospecting
    Patent number: 5093236
    Abstract: This invention provides methods and systems for prospecting for subterranean oil and gas deposits by detecting the presence of hydrocarbon-consuming microorganisms in soil samples taken from a field of interest for production. A preferred method of this invention comprises suspending and diluting each soil sample in mineral salt solution, combining the sample with a selective growth, substrate such as an alcohol or aldehyde, and an oxidation-reduction dye in a gas-tight tube, incubating the sample and measuring the color change of the dye. Advantages of this system include: results obtained in short times (24 to 72 hours), substantially eliminates false positives, accurate results particularly when a spectrophotometer is used to measure the color changes, and it is automatable with computer controlled systems for processing samples, reading the color changes and calculating and plotting test results.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: March 3, 1992
    Assignees: Genecor International, Inc., Geo-Microbial Technologies, Inc.
    Inventors: Victoria Gonzales-Prevatt, Douglas M. Munnecke