Starch treatment process

C - Chemistry – Metallurgy – 08 – B

Patent

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Details

C08B 30/00 (2006.01) A23L 1/05 (2006.01) C08B 30/20 (2006.01) C08J 3/18 (2006.01) C08J 5/18 (2006.01)

Patent

CA 2568944

High amylose starches are treated to retain resistance while improving water binding properties. Starch functionality is varied by pre-processing of starches by heating and microfluidisation, to create changes in product viscosity, resistant starch content, particle size and molecular weight. The treated starches produce food grade resistant starches which have the ability to bind water, build viscosity, gel and form films. They can be used as fat replacement ingredients.

On traite des amidons possédant une teneur élevée en amylose afin de conserver leur résistance, tout en améliorant leurs propriétés de liaison avec l'eau. On modifie la fonctionnalité de l'amidon par traitement au préalable de ces amidons au moyen d'un réchauffement et d'une microfluidisation afin de créer des variations dans la viscosité du produit, la teneur en amidon résistant, la dimension des particules et le poids moléculaire. Ce traitement permet d'obtenir des amidons résistants de grade alimentaire possédant une capacité de liaison avec l'eau, une constitution visqueuse servant à produire des gels et des pellicules. On peut utiliser ces amidons en tant qu'ingrédients de substitution des graisses.

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