Preparation method and application of chequer-shaped indocalamus leaf extract starch gel

The invention relates to the technical field of food additives, in particular to a preparation method and application of chequer-shaped indocalamus leaf extract starch gage.The preparation method comprises the steps that sodium alginate, konjac glucomannan and chitosan are dissolved in water to obtain a first mixed solution, calcium carbonate is added into a chequer-shaped indocalamus leaf extract solution to be mixed to obtain a second mixed solution, and the chequer-shaped indocalamus leaf extract starch gel is obtained. Dropwise adding the second mixed solution into the first mixed solution, standing, filtering, freeze-drying to obtain gel microspheres containing the chequer-shaped indocalamus leaf extract, adding the gel microspheres into an acetic acid-sodium acetate buffer solution, then adding an ethanol solution for surface treatment, adding water into starch gel for dissolving, and drying to obtain the chequer-shaped indocalamus leaf extract. And putting the chequer-shaped indocalamus leaf extract in