Introducing the widespread application of modified starch in various fields

Starch is a polymer compound of polysaccharides formed by the condensation of - glucose, and is the most abundant renewable substance in nature. It is biodegradable and does not cause environmental pollution. Nowadays, there are more and more varieties of modified starch with wider applications, which are widely used in various fields, bringing great convenience to our lives, work, and so on.

food industry

Modified starch has many texture characteristics of products and is widely used in the food industry as a thickener, stabilizer, gelling agent, binder, etc. Grain is the most basic means of livelihood, and modified starch plays a crucial role in the food industry. People's demands for the variety, nutrition, and health of food have significantly increased. In the food industry, modified starch is developing in the direction of diverse product varieties, complete specifications, safety, health, nutrition, low-fat, and ecology. People are increasingly valuing low-fat diets and increasing the intake of complex carbohydrates in their diet.

medicine

Starch has a good application in medicine, but its application is often affected by the swelling property, solubility, gel effect, rheological property, mechanical property and the characteristics of enzyme digestion of starch, and can improve the shortage of raw starch after modification.

water treatment

Starch and its derivatives have become important substances in wastewater treatment due to their wide sources, low prices, and environmental safety. Modified starch has superior performance compared to starch and is a promising new type of water treatment agent. Cationic starch derivative flocculants are non-toxic and easy to degrade,

water treatment

Starch and its derivatives have become important substances in wastewater treatment due to their wide sources, low prices, and environmental safety. Modified starch has superior performance compared to starch and is a promising new type of water treatment agent. Cationic starch derivative flocculants are non-toxic, easy to degrade, and can neutralize charges and adsorb bridging effects with particles in water. They are often used to treat wastewater carrying negative charges.

paper industry

The molecular structure of starch is extremely similar to that of fiber molecules in papermaking fiber raw materials. In addition, it has the advantages of wide sources, low price, and low environmental pollution, making it widely used in the papermaking industry. The commonly used modified starch in the papermaking industry includes oxidized starch, cationic starch, anionic starch, phosphate starch, and dialdehyde starch. After modification, starch can endow paper with excellent properties. The amount of modified starch is large and it is an extremely important papermaking chemical, accounting for approximately the total amount of fine chemicals in papermaking. China is a major papermaking country, and modified starch plays an important role and has enormous potential for application and development in the papermaking industry.

Foundry industry

Foundry binders can be divided into two categories: inorganic and organic. There are serious drawbacks in the application of some inorganic and organic binders in the casting industry, such as furan resin, which has high cost, low ductility, and serious environmental pollution. As a casting adhesive, it is not ideal. Starch is a pollution-free and low-cost adhesive. In the casting industry, starch or starch made dextrin are often directly used as auxiliary materials or coating binders for core sand. However, direct use of starch as a binder results in low adhesion, while a large amount of dextrin is added, making the core sand prone to mold adhesion and severe moisture absorption. Therefore, it is necessary to modify starch appropriately to improve its adhesion and moisture absorption properties.

packing material

A large amount of discarded plastic packaging products have caused the problem of "white pollution" due to their non degradability. Starch has a wide range of sources, multiple varieties, low cost, and can be completely degraded in the natural environment without causing any pollution to the environment. Therefore, starch based degradable plastics can be well applied in packaging materials. Starch based biodegradable plastics are divided into biodegradable plastics and fully biodegradable plastics. The former mainly refers to blending starch with non degradable resins, while the latter includes thermoplastic starch plastics, starch degradable polymer blends, and starch polymer blends.