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US 2022/0010034 A1Published application
Method and device for the digestion of starch
AssigneePga Putz-Granitzer-Anlagenbau Gesellschaft M.B.H.
InventorsChristian STIRN, Roman STEINDL, Klaus BARTELMUSS
Life of this patent
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Abstract
With a method for digesting starch, an aqueous slurry of the starch is treated with steam in a cooking vessel and in this case exposed to shear forces, wherein the starch-containing slurry is heated to a temperature of between 85□C and 110□C in the cooking vessel by introducing steam, and the digestion step is implemented until the desired degree of digestion has been reached. Also described is a cooking vessel that can be used when the method for digesting starch is being carried out.
Claims34
Method for digesting starch, comprising:
- a) Creating an aqueous slurry of powdery starch,
- b) Introducing the slurry into a cooking vessel (4),
- c) Treating the slurry in the cooking vessel (4) with steam, wherein the slurry is exposed by mechanical action to shear forces that are created by a rotor with a finned dispersing disk, and wherein steam is fed from a hollow ring (70), arranged below the rotor, in which openings directed toward the rotor (42) are provided for the discharge of steam, in order to implement thermomechanical digestion, and
- d) Drawing off the starch, converted at least partially into paste, from the cooking vessel(4.
1 more element
7-10. (canceled)
14-16. (canceled)
Dependencies are inferred from the claim text.