Patents by Inventor James C. Purdue

James C. Purdue 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: 8057840
    Abstract: A food product comprises an oligosaccharide composition that is digestion resistant or slowly digestible. The oligosaccharide composition can be produced by a process that comprises producing an aqueous composition that comprises at least one oligosaccharide and at least one monosaccharide by saccharification of starch, membrane filtering the aqueous composition to form a monosaccharide-rich stream and an oligosaccharide-rich stream, and recovering the oligosaccharide-rich stream. Alternatively, the oligosaccharide composition can be produced by a process that comprises heating an aqueous feed composition that comprises at least one monosaccharide or linear saccharide oligomer, and that has a solids concentration of at least about 70% by weight, to a temperature of at least about 40° C.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: November 15, 2011
    Assignee: Tate & Lyle Ingredients Americas LLC
    Inventors: Michael D. Harrison, James C. Purdue, Penelope A. Patton, Andrew J. Hoffman, James M. Gaddy, Chi-Li Liu, Robert V. Schanefelt, Richard W. Armentrout, Michelle P. Schwenk, Rachel A. Wicklund, Marianne Claessens, Eric M. Reamer, Shawn E. Sprankle, Sanjiv H. Avashia, Peter M. Gautchier, Robert L. Olsen, Judy L. Turner, Timothy C. Mertz, Michael Bunch, Doris A. Dougherty, Michel Lopez, Lori Napier, Ram Santhanagopalan
  • Publication number: 20100047432
    Abstract: A process for preparing saccharide oligomers uses an aqueous feed composition that comprises at least one monosaccharide or linear saccharide oligomer, and has a solids concentration of at least about 70% by weight. The feed composition is heated to a temperature of at least about 40° C., and is contacted with at least one catalyst that accelerates the rate of cleavage or formation of glucosyl bonds, such as enzyme or acid, for a time sufficient to cause formation of non-linear saccharide oligomers. A product composition is produced that contains a higher concentration of non-linear saccharide oligomers than linear saccharide oligomers.
    Type: Application
    Filed: August 24, 2009
    Publication date: February 25, 2010
    Inventors: Michael D. Harrison, James C. Purdue, Penelope A. Patton, Andrew Hoffman, James M. Gaddy, Chi-Li Liu, Robert Schanefelt
  • Patent number: 7608436
    Abstract: A process for preparing saccharide oligomers uses an aqueous feed composition that comprises at least one monosaccharide or linear saccharide oligomer, and has a solids concentration of at least about 70% by weight. The feed composition is heated to a temperature of at least about 40° C., and is contacted with at least one catalyst that accelerates the rate of cleavage or formation of glucosyl bonds, such as enzyme or acid, for a time sufficient to cause formation of non-linear saccharide oligomers. A product composition is produced that contains a higher concentration of non-linear saccharide oligomers than linear saccharide oligomers.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: October 27, 2009
    Assignee: Tate & Lyle Ingredients Americas, Inc.
    Inventors: Michael D. Harrison, James C. Purdue, Penelope A. Patton, Andrew J. Hoffman, James M. Gaddy, Chi-Li Liu, Robert V. Schanefelt
  • Patent number: 5356808
    Abstract: A highly fermentable, high maltose, non-crystallizing starch conversion syrup is produced having a minimum fermentable equivalent of 95%, a maltose content ranging from about 40 to 65%, a dextrose content ranging from about 35 to 50%, a maltotriose content of less than about 3%, and a dextrose content plus maltose content of at least 93%. The methods for producing the above-described syrup comprise either a one-stage conversion of an .alpha.-amylase thinned syrup using a mixture of enzymes, comprising a barley .beta.-amylase, a pullulanase, and a blend of a glucoamylase and a pullulanase or a two-stage conversion of an .alpha.-amylase thinned syrup, comprising two enzymatic conversions, the first using a mixture of .alpha.-amylase, maltogenic .alpha.-amylase, and pullulanase enzymes, and the second using glucoamylase and pullulanase enzymes.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: October 18, 1994
    Assignee: A.E. Staley Manufacturing Company
    Inventors: James C. Purdue, Kevin D. Kapper, Michael D. Bunch, Jerry L. Turner