Patents Assigned to Warcoing S.A.
  • Patent number: 6607603
    Abstract: The invention relates to a method for making crystallized fructose comprising preparing a pure fructose syrup by melting fructose dihydrate crystals, concentrating the melt by heating under reduced pressure to obtain a dry matter content above 96% by weight, seeding the concentrated syrup with fructose crystals, and solidifying the seeded syrup. In a preferred process, the time between the melting the fructose dihydrate crystals and the concentration of the syrup to a dry matter content above 96% by weight is less than 24 hours, preferably less than 8 hours. The invention also relates to crystallized fructose produced by the process of the present invention wherein the fructose is comprised primarily of the beta-D-fructopyranose fructose crystals tautomers with low amounts of other fructose tautomers which are considered impurities in the crystallization context.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: August 19, 2003
    Assignee: Warcoing S.A.
    Inventor: Christian Fougnies