Method for preparing corn starch nanocrystals through pulsed electric field assisted acidolysis

The invention discloses a method for preparing corn starch nanocrystals by pulsed electric field assisted acidolysis, which comprises the following steps: treating a starch solution by using a pulsed electric field of 1-12kV/cm, and then carrying out acidolysis to prepare the starch nanocrystals, is simple and efficient, not only can obviously reduce the reaction time, but also can prepare the corn starch nanocrystals in a relatively short time, and also can prepare the corn starch nanocrystals in a relatively short period of time. Moreover, due to mild reaction conditions, higher safety performance and low energy consumption, the adverse effect of instantaneous temperature rise on starch acidolysis is avoided, the crystallinity is improved, the corn starch nanocrystal with smaller size is obtained, the corn starch nanocrystal can be used as a filler of a composite material, the mechanical property and barrier property of the composite material are improved, and the application prospect is wide. And the produ