Research Progress in Preparation Technology and Applications of Modified Starch

Abstract:

Natural starch has attracted much attention due to its low cost, biodegradability, renewability, and easy availability of raw materials. However, its poor water solubility, mechanical stability, and freeze-thaw stability limit its application scope. After modification treatment, the transmittance of starch significantly increases, and the apparent viscosity also increases. Moreover, the system exhibits significantly enhanced freeze-thaw stability, acid-base tolerance, and storage stability, showing more excellent processing and application performance. The author systematically describes the preparation strategies of modified starch, mainly from physical, chemical, enzymatic and composite modification methods, summarizes the influences of modification technology on the internal structure and physicochemical properties of starch, and introduces the application status of modified starch in various fields, laying a foundation for the development of more efficient and targeted modified starch technologies.