Method for liquefying starch

Details Method for liquefying starch Method for liquefying starch

C - Chemistry, Metallurgy

12

P

C12P 19/14 (2006.01) C08B 30/12 (2006.01) C12N 9/26 (2006.01)

Patent

CA 2214383

According to the invention a method is provided for liquefying starch comprising the steps of treating the starch prior to or simultaneously with liquefying the starch to inactivate and/or remove the enzyme inhibiting composition present in the starch and form treated starch; adding .alpha.- amylase to the treated starch; and reacting the treated starch for a time and at a temperature effective to liquefy the treated starch. Effective means to treat the starch include the addition of a phytate degrading enzyme and heat treatment, optionally followed by filtration or centrifugation, of granular starch or a starch solution.

La présente invention a pour objet un procédé pour la liquéfaction de l'amidon. Ce procédé comprend les étapes consistant à traiter l'amidon avant de le liquéfier, ou en même temps, pour inactiver et/ou extraire la composition inhibant l'enzyme présente dans l'amidon, et pour former l'amidon traité; à ajouter de l'.alpha.-amylase à l'amidon traité; et faire réagir l'amidon traité pendant un certain laps de temps et à une température permettant de liquéfier l'amidon traité. Des moyens efficaces pour traiter l'amidon comprennent l'addition d'une enzyme de dégradation du phytate et un traitement thermique, éventuellement suivi d'une filtration ou d'une centrifugation, de l'amidon sous forme de granulés ou de solution.

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