BRANCHED alpha-GLUCAN, alpha-GLUCOSYL TRANSFERASE FOR PRODUCING THE SAME, AND MANUFACTURING METHOD AND USE THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a glucan useful as water-soluble dietary fiber, its preparation and uses.

SOLUTION: There is provided a branched α-glucan which is an α-glucan making glucose as a constitution sugar and has a branched structure with a glucose polymerization degree of 1 or more connected to at least non-reduction terminal glucose residue positioned at an end of a linear glucan with a glucose polymerization degree of 3 or more connected through an α-1,4 bond through a bond other than the α-1,4 bond. A new α-glucosyl transferase for producing the branched α-glucan, and a process and use of the same.

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