Alpha-amylase variants with altered properties

Details Alpha-amylase variants with altered properties Alpha-amylase variants with altered properties

C - Chemistry, Metallurgy

11

D

C11D 3/386 (2006.01) C12N 9/28 (2006.01) C12N 15/75 (2006.01)

Patent

CA 2704555

Disclosed are compositions comprising variants of alpha-amylase that have alpha-amylase activity and that exhibit altered properties relative to a parent AmyS-like alpha-amylase from which they are derived. The compositions generally comprise at least one of an additional enzyme, a detergent, a surfactant, a chelator, an oxidizing agent, an acidulant, an alkalizing agent, a source of peroxide, a source of hardness, a salt, a detergent complexing agent, a polymer, a stabilizing agent, or a fabric conditioner. Also disclosed are detergent formulations comprising the variants. Methods of using the compositions for desizing woven material and washing or cleaning items, such as dishes or laundry, are disclosed. Kits related thereto are also provided.

L'invention porte sur des compositions comportant des variants d'alpha-amylase qui ont une activité d'alpha-amylase et qui manifestent des propriétés modifiées par rapport à une alpha-amylase de type AmyS parente à partir de laquelle ils sont issus. Les compositions comportent d'une manière générale au moins un élément du groupe suivant : une enzyme supplémentaire, un détergent, un agent tensioactif, un chélateur, un agent oxydant, un acidulant, un agent alcalinisant, une source de peroxyde, une source de dureté, un sel, un agent complexant un détergent, un polymère, un agent stabilisant ou un assouplissant de tissu. L'invention porte également sur des formulations de détergent comportant les variants. L'invention porte également sur des procédés d'utilisation des compositions pour dégommer de la matière tissée et laver ou nettoyer des articles, tels que de la vaisselle ou du linge. L'invention propose également des kits se rapportant à ces procédés.

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