Oxidized reversibly swelling granular starch products

Details Oxidized reversibly swelling granular starch products Oxidized reversibly swelling granular starch products

C - Chemistry, Metallurgy

08

B

C08B 31/00 (2006.01) C08B 31/18 (2006.01)

Patent

CA 2570190

A rapid ly-hydratable oxidized resistant starch having a cold-water hydration at least 20% greater than the resistant starch before oxidation, makeable by oxidation with an oxidizing agent selected from the group consisting of periodate, chromic acid, permanganate, nitrogen dioxide, and alkali metal hypochlorites. The starch may be made by a process for preparing a rapidly- hydratable resistant starch comprising the steps of swelling starch granules in the presence of alkali and/or heat, dispersing at least one cross-linking agent, mixing said dispersion, adding an oxidizing agent to said dispersion, and agitating said dispersion.

Amidon résistant oxydé et rapidement hydratable ayant une hydratation dans de l'eau froide supérieure d'au moins 20 % à celle de l'amidon résistant avant oxydation, qu'on peut fabriquer par oxydation avec un agent oxydant choisi dans le groupe constitué du periodate, de l'acide chromique, du permanganate, du dioxyde d'azote et d'hypochlorites de métaux alcalins. L'amidon peut être fabriqué par un procédé servant à préparer un amidon résistant rapidement hydratable comprenant les étapes consistant à faire gonfler des granules d'amidon en présence d'un alcali et/ou de chaleur, disperser au moins un agent réticulant, mélanger ladite dispersion, ajouter un agent oxydant à ladite dispersion et agiter ladite dispersion.

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