Modified porous starch for enhanced properties: Synthesis, characterization and applications

Native starches have low water solubility at room temperature and poor stability, which demand modifications to overcome. Porous starch as a modified one shows enhanced adsorptive efficiency and solubility compared with its native starch. In contrast, some inherent disadvantages exist, such as weak mechanical strength and low thermal resistance. Fortunately, modified porous starches have been developed to perform well in adsorption capacity and stability. Modified porous starch can be prepared by esterification, crosslinking, oxidation and multiple modifications to the porous starch. The characterization of modified porous starch can be achieved through various analytical techniques. Modified porous starch can be utilized as highly efficient adsorbents and encapsulants for various compounds and applied in various fields. This review dealt with the progress in the preparation, structural characterization and application of modified porous starch. The objective is to provide a reference for its development, utilization, and future research directions.

Automated summary

Native starches have low solubility and stability, which can be improved through modifications. Porous starch, as a modified version, has enhanced adsorptive efficiency and solubility compared to native starch. However, it also has drawbacks such as weak mechanical strength and low thermal resistance. Modified porous starches have been developed to address these issues and show improved adsorption capacity and stability. Different modification methods can be used to prepare and characterize modified porous starch, which can be utilized as efficient adsorbents and encapsulants in various fields.