~The internal quality of corn starch dry powder is the same as corn starch, but the moisture content is less (less than 10%) because of the main powder solid, easy to transport, storage and use, the product is not easy to deteriorate, easy to use. The yield and quality of the product were stable, and the corn syrup was not convenient to transport, store and use because it was packed in liquid casks. Because of the high content of protein and micronutrient, it was easy to ferment and deteriorate when the temperature was a little higher, which affected the use effect