| abstract |
The present invention provides a method for suppressing the amount of necessary enzyme as much as possible when producing amylose from sucrose, and a method for realizing a reaction at a higher temperature. A method for producing glucan, comprising the step of reacting a reaction solution containing sucrose, a primer, inorganic phosphate or glucose-1-phosphate, sucrose phosphorylase, and glucan phosphorylase to produce glucan. Wherein the reaction is carried out at a temperature of 40 ° C. to 70 ° C., and the concentration of sucrose in the reaction solution at the start of the reaction is 5 to 100%. [Selection figure] None |