The invention provides a
microwave treatment method and
system for continuously increasing
digestion resistance of
potato starch. The method comprises the following steps of (1) preparing
potato starch emulsion; (2) heating the
potato starch emulsion obtained in the step (1), performing cooling, and performing
microwave treatment and ultrahigh-pressure treatment; and (3) performing standing on
starch milk cooled in the step (2), performing
filtration, performing washing, continuing adding water to filter residues, performing standing, pouring upper-layer liquid, performing constant-temperature vibration, performing cooling and cleaning, performing
ageing, performing sucking
filtration, performing hot
air drying, performing
drying, and performing screening so as to obtain finished products of the potato
starch. According to the
microwave treatment method disclosed by the invention, improvement is performed from the technology and equipment, firstly heating treatment is performed on
starch emulsion, then cooling is performed, then microwave treatment is performed, cooling is performed once again, constant-temperature vibration is performed, and in the microwave
treatment system capable of continuously increasing the
digestion resistance of the starch, starch raw materials are subjected to repeated heating and cooling, so that ordering and
retrogradation effects of starch molecules are facilitated, and the formation quantity of the
resistant starch is effectively increased.