The invention discloses a
starch potassium iodide inclusion compound and a preparation method thereof. The method comprises the following steps: (1)
starch toughening treatment: adding a proper amount of water into
amylose, adjusting the
water content to be 75%, uniformly mixing, bottling and sealing, then placing in a constant-temperature oscillating water bath for 24 hours, controlling the
toughening temperature to be 90-98 DEG C, then centrifuging for 10 minutes at the speed of 3000r / min, removing supernate, washing the toughened
starch with
distilled water once, then air-
drying for 24 hours at the temperature of 30 DEG C,
grinding and sieving with a 100-mesh
sieve, and collecting undersize substances to obtain toughened starch; (2) embedding
potassium iodide with toughened starch: preparing a
potassium iodide solution with a certain
mass concentration, adding a certain amount of toughened starch, oscillating for a certain time in a constant-temperature oscillating water bath at a set temperature, then centrifuging for 10 minutes at a speed of 3000r / min, removing supernate, storing in a refrigerator for a certain time, then washing once with absolute ethyl
alcohol water, air-
drying for 24 hours at 30 DEG C,
grinding, and screening with a 100-mesh screen, so as to obtain the potassium iodide embedded with the toughened starch. The toughened starch-potassium iodide
inclusion compound can be prepared. The technology belongs to a pure physical
processing mode, and the formed starch potassium iodide
inclusion compound is better in
chemical stability.