Method for preparing v-type porous starch

Abstract

A method for preparing V-type porous starch includes: mixing starch and a first ethanol solution in a reaction kettle, adding concentrated hydrochloric acid to the reaction kettle for acidity regulation, and controlling a temperature of a reaction system in the reaction kettle at 80-150° C.; cooling the reaction kettle, and adding a sodium hydroxide solution to the reaction system in the reaction kettle, until a pH of a mixture in the reaction kettle is neutral, to yield a starch solution; and centrifuging the starch solution, washing a collected precipitate with a second ethanol solution, leaching, drying, cooling, and pulverizing, to yield V-type porous starch.

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