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US 12,264,206 B2Granted
Method and device for the digestion of starch
AssigneePga Putz-Granitzer-Anlagenbau Gesellschaft M.B.H.
InventorsChristian Stirn, Roman Steindl, Klaus Bartelmuss
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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.
Claims16
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, by:
- using a rotor with a finned dispersing disk to expose the slurry by mechanical action to shear forces that are created by the rotor with the finned dispersing disk, and implementing thermomechanical digestion by feeding steam from openings of at least one of a hollow ring (70) and a hollow displacement element, arranged below the rotor, the openings being directed toward the rotor (42) for the discharge of the steam toward the rotor, in order to implement the thermomechanical digestion, and
- d) Drawing off the starch, converted at least partially into paste, from the cooking vessel (4).
2 more elements
Dependencies are inferred from the claim text.