Patent ID: 7709230
Filing Date: 2010-05-04
Classification: C12P

Abstract:
1. A process for producing isomaltose, comprising the steps of: (a) allowing α-isomaltosylglucosaccharide-forming enzyme to act on a starting saccharide selected from the group consisting of maltooligosaccharides, maltodextrins, amylodextrins, amyloses, amylopectins, soluble starches, liquefied starches, and glycogens to form α-isomaltosylglucosaccharide having a glucose polymerization degree of at least three, an α-1,6 glucosidic linkage as a linkage at the non-reducing end, and α-1,4 glucosidic linkages at all positions except the linkage at the non-reducing end; said α-isomaltosylglucosaccharide-forming enzyme forms said α-isomaltosylglucosaccharide from said starting saccharide by catalyzing an α-glucosyl-transferring reaction without substantially hydrolyzing isomaltose, and said α-isomaltosylglucosaccharide forming enzyme is obtained from a microorganism of genus (b) allowing isomaltodextranase to act on the formed α-isomaltosylglucosaccharide to release isomaltose; and (c) collecting the released isomaltose wherein said α-isomaltosylglucosaccharide forming enzyme has the following physicochemical properties: