Patent ID: 7700327

Claim:
An insoluble resistant starch product produced from a native ungelatinized, unhydrolyzed insoluble starch, wherein said product exhibits a pasting temperature and a peak viscosity that are within 25% of that exhibited by the native starch, wherein said product contains a higher percentage of starch molecules that are resistant to alpha-amylase digestion as compared to the native starch, wherein said product displays a resistant starch temperature peak from about 116° C. to about 125° C. in a heating profile as measured by differential scanning calorimetry, wherein said product has from about three-fold to about twelve-fold increase in the percentage of starch molecules that are resistant to alpha-amylase digestion as compared to the native starch, and wherein said product is produced by a process comprising the steps of preparing an aqueous slurry of the insoluble native starch, incubating the slurry at a temperature from about 40° C. to less than 60° C. for a time from about 2 hours to about 4 hours with a debranching enzyme to hydrolyze at least some 1,6-glucosidic bonds of the native starch molecules, and isolating the insoluble resistant starch product from the aqueous slurry.