| abstract |
The purpose of the present invention is to provide a glucosamine-containing glucan, a modified product of the glucosamine-containing glucan and a conjugate of the glucosamine-containing glucan. This glucosamine-containing glucan is a glucosamine-containing glucan wherein at least one glucosamine residue is bound, by an α-1,4 bond, to each of two or more non-reducing terminals among a plurality of non-reducing terminals of a branched α-1,4 glucan but no glucosamine residue is present at any position other than non-reducing terminals of the branched α-1,4 glucan, and the glucan has a polymerization degree from 15 to 4 × 10 5 (inclusive). This glucosamine-containing glucan can be provided by having α-glucan phosphorylase act on an aqueous solution that contains a branched α-1,4 glucan and glucosamine-1-phosphate. |