Process for oxidising starch

Details Process for oxidising starch Process for oxidising starch

C - Chemistry, Metallurgy

08

B

C08B 31/18 (2006.01) C08B 15/02 (2006.01)

Patent

CA 2247109

A process for reducing the viscosity of polysaccharides such as starch by treatment with hydrogen peroxide in the presence of an acylated polysaccharide as an activator is described. The acylated polysaccharide is used in particular in an amount which is equivalent to at least 1 acyl group per 100 monosaccharide units. The hydrogen peroxide is preferably used at 2-20 wt.%, with respect to the total of polysaccharide and acylated polysaccharide.

Cette invention concerne un processus permettant de diminuer la viscosité de polysaccharides tels que de l'amidon, lequel processus consiste à effectuer un traitement à l'aide de peroxyde d'hydrogène en présence d'un polysaccharide acylé utilisé en qualité d'activateur. Ce polysaccharide acylé est principalement utilisé dans une quantité équivalente à au moins un groupe acyle par centaine d'unités de monosaccharides. Le peroxyde d'hydrogène est de préférence utilisé selon une proportion allant de 2 à 20 % en poids par rapport au poids total de polysaccharide et de polysaccharide acylé.

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