Patent ID: 6677142
Filing Date: 2004-01-13
Classification: C12P

Abstract:
A process for preparing &agr;-1,4-glucan-chain-containing polysaccharides, comprising the step of subjecting a glucosyl group acceptor to a chain extension reaction by reacting said glucosyl group acceptor with sucrose in the presence of an amylosucrase and with addition of fructose in a reaction mixture, said fructose being added to the reaction mixture at a concentration of 100 mM to 800 mM, the amount of glucosyl group acceptor in the reaction mixture being selected such that the molar ratio of glucosyl group acceptor ends available for chain extension to sucrose is at least 1:1000 and/or the weight ratio of glucosyl group acceptor to sucrose is at least 1:50.