**4. Conclusions and future trends for corn starch**

Corn starch is a natural biopolymer, it has multiple physicochemical properties, an option to replace most of the synthetic polymers in the future to reduce pollution and preserve the environment. The use of blends with other starches from different botanical sources and even other biopolymers of different molecular structure (e.g. pectin, cellulose, chitosan, gelatin, alginate, hydroxyapatite, protein) are tendencies to avoid the use and generation of chemical residues that affect the environment and increase production prices. These blends are promising that demonstrate in this chapter a biocompatibility and diversity of physical properties friendly with the environment without affecting third parties. The challenge to be overcome is to completely replace the most widely used synthetic polymers around the world, through the development of biofilms based on corn starch, and how to improve the mechanical, hydrophobic and permeable properties is still being investigated. In addition, cornstarch can be used to improve filtration materials, absorbents, transport, diffusibility, hydrogels, paper, adhesives, biofuels. Therefore, the future of cornstarch blends will continue to be an encouraging proposition to generate high-value products for novel applications in various areas.
