Method for preparing flavored nanometer porous starch particles and application of flavored nanometer porous starch particles to cigarette filter tip

The invention discloses a method for preparing flavored nanometer porous starch particles and the application of the flavored nanometer porous starch particles to a cigarette filter tip. The method for preparing the flavored nanometer porous starch particles comprises the following steps: adding corn starch into a citric acid and sodium citrate buffer solution, adding saccharifying enzyme-alpha-amylase compound, carrying out enzymatic reaction, carrying out centrifugal precipitation after the reaction is completed, washing, drying to obtain nanometer-aperture porous starch, flavoring the nanometer-aperture porous starch, wetting, granulating, shaping by using microwaves, drying by using microwaves and sieving to obtain the needed flavored nanometer porous starch particles. The flavored nanometer porous starch particles can be added into a cigarette filter stick to make a binary or ternary composite cigarette filter stick to reduce the content of tar in smoke, reduce the irritation of smoke, increase the smoke