Pregelatinized starch, a modified starch, has played a significant role in various industries in recent years. It is produced by partially or completely breaking down starch granules through chemical or mechanical methods. This treatment gives starch new properties and a wider range of applications.

　　The preparation of pregelatinized starch is mainly achieved through two methods: one is to heat the starch slurry, controlling the temperature at 62-72℃, and then drying it through a series of processes; the other is to prepare it through mechanical pressurization, especially for partially pregelatinized starch. According to the degree of pregelatinization, it is divided into fully pregelatinized starch and partially pregelatinized starch. Fully pregelatinized starch can completely dissolve in cold water, while partially pregelatinized starch contains soluble and insoluble components, this property gives it unique binding and disintegrating properties in applications.

　　Pregelatinized starch is a white or off-white powder, odorless, with a slightly special taste. It has good flowability and direct compressibility, which makes it widely used in pharmaceutical, food and other industrial fields. In terms of safety, pregelatinized starch is widely considered to be a non-toxic, non-irritating material, but large oral doses may be harmful.

　　Application Areas

　　Pharmaceutical Industry: In the pharmaceutical field, pregelatinized starch is commonly used as a binder, diluent, and disintegrant in oral tablets and capsules. Its self-lubricating property can reduce the use of other excipients, improving the production efficiency and quality of pharmaceuticals.

　　Food Industry: In food, pregelatinized starch can increase the viscosity and stability of food, improve taste, and prevent crystallization during freezing and refrigeration. It is widely used in the production of meat products, jams, beverages, etc.

　　Other Industries: In addition to pharmaceuticals and food, pregelatinized starch also plays an important role in many fields such as cosmetics, construction, and ink printing. For example, it is used as a moisturizer and film-forming agent in cosmetics to improve the effect of the product; in construction, it is used as a water-retaining agent and retarder for cement mortar to improve construction efficiency and quality.

　　Pregelatinized starch, as a multifunctional modified starch, is becoming an indispensable raw material in modern industrial production due to its unique physical properties and wide range of applications. With continuous technological advancements and expanding application fields, pregelatinized starch will play an even greater role in the future.