Acid-stable soy protein and fortified food or beverage

A - Human Necessities – 23 – J

Patent

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Details

A23J 1/14 (2006.01) A23L 2/66 (2006.01)

Patent

CA 2544898

A water-soluble acid stable soy protein, methods for making same and acidic food or acidic beverage fortified therewith. Particularly, this invention is useful in the pH range of 3.5 to 4.1 where other soy protein fortification methods do not work. The invention is comprised of a soy protein, a thermal treatment method to solubilize at least 90 % of the protein, an acidification of the protein to a point preferably significantly below the iso-electric value, and a partial neutralization to bring the product proximal to the intended pH of the application it will be used in.

L'invention concerne une protéine hydrosoluble de soya stable aux acides, des procédés pour fabriquer cette protéine et un aliment ou une boisson acidifiée enrichie avec cette protéine. L'invention est particulièrement utile pour le pH compris entre 3,5 et 4,1, lorsque d'autres procédés d'enrichissement à la protéine de soya s'avèrent inefficaces. L'invention porte sur une protéine de soya, un procédé de traitement thermal pour solubiliser au moins 90 % de la protéine, une méthode d'acidification de la protéine jusqu'à un point qui se situe sensiblement en dessous de la valeur isoélectrique, et une neutralisation partielle visant à porter le produit le plus près du pH visé de l'application dans laquelle il est utilisé.

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