Granular resistant starch and method of making
AssigneeOpta Food Ingredients, Inc.
InventorsStephen G. Haralampu, Akiva Gross
Life of this patent
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Abstract
A method of producing a granular resistant starch comprising the steps of heating a granular native starch to swell but not rupture the starch granules, debranching the starch, treating the starch to retrograde the amylose therein, optionally annealing the starch and optionally drying the product to a powder is described. Granular resistant starch produced by this method and food formulations containing the granular resistant starch are also described.
Claims24
A method for producing granular resistant starch, comprising the steps of:
- a) heating an aqueous slurry of native starch under conditions appropriate for swelling of the native starch granules therein without causing rupture of said native starch granules;
- b) debranching the starch product of step (a);
- and
- c) causing the debranched starch product of step (b) to retrograde,
- thereby producing granular resistant starch.
A method of producing granular resistant starch, comprising the steps of:
- a) heating an aqueous slurry of native high amylose starch to a temperature of from about 90.degree. C. to about 120.degree. C.;
- b) enzymatically debranching the starch product of step (a);
- and
- c) heating the debranched starch product of step (b) to a temperature of from about 40.degree. C. to about 100.degree. C. and maintaining the temperature for about 2 hours,
- thereby producing granular resistant starch.
Aqueous granular resistant starch produced by a process which causes native starch granules to swell but not rupture and wherein the starch has an average viscosity lower than the average viscosity of resistant starch produced by a process in which the starch granules are ruptured.
A method for producing granular resistant starch, comprising the steps of:
- a) heating an aqueous slurry of native starch having a moisture content of from about 100% to about 600% starch weight under conditions appropriate for swelling of the native starch granules therein without causing rupture of said native starch granules;
- b) debranching the starch product of step (a);
- and
- c) maintaining the debranched starch product of step (b) at an appropriate temperature and for an appropriate time to cause the starch product to retrograde,
- thereby producing granular resistant starch.
Aqueous granular resistant starch having a moisture content of from about 100% to about 600% starch weight and having an average viscosity lower than the average viscosity of resistant starch produced by a process in which the starch granules are ruptured.
Dependencies are inferred from the claim text.