Soluble starch

Pharmaceutical-grade soluble starch

Pharmaceutical-grade solublestarch (solublestarch) is a starch derivative obtained by treating starch with oxidants, acids, glycerol, enzymes or other methods. Soluble starch is a white or off-white powder, odorless, and insoluble in cold water, ethanol and ether. It can dissolve into a transparent solution in boiling water and does not freeze when cooled. A 1% solution is a transparent emulsion. Soluble starch contains no reducing substances and has stable chemical properties. It is widely applied in preparations such as pharmaceutical tablets, diluents, disintegrants, stabilizers, tablets, and granules.

Product application

Soluble starch is widely used in the production of dosage forms such as tablets and capsules. Soluble starch is more stable than dextrin and has a stronger adsorption capacity. When preparing capsules, adding soluble starch can improve the fluidity of the drug.

Soluble starch is used as an excipient in the preparation of granules, which can overcome the defects of high viscosity and difficulty in granulation of dextrin, simplify the process, and the prepared granules have a better taste. It is often used in the preparation of sugar-free granules.

Food-grade soluble starch

Food-grade soluble starch, also known as acid-treated starch, is a white or off-white powder with no odor. It is relatively soluble in cold water and begins to gelatinize at about 75℃. The viscosity of the starch paste made from acid-modified starch of the same concentration is lower than that of the corresponding original starch of the same type. Gelatinized solutions with a concentration exceeding 10g/ 100mL can form a gel state upon cooling.

Product application

The particle structure of acid-treated starch becomes less compact, the molecular chain length decreases, and it is easier to disperse. Therefore, with slight heating, it will dissolve, its fluidity increases, and its viscosity decreases, which is about five times lower than the characteristic viscosity of the original starch. During the heating process, the viscosity rises, and after cooling, it shows a strong gelation process and can form a strong gel. Taking advantage of this property, Acid-modified starch can be applied in the food industry such as gummy candies and starch jelly, and can be added to starch sugar, granulated sugar and spices.

In the papermaking industry, acid-treated starch is often used for sizing the surface of certain high-quality papers by roller method. Maintaining the operating temperature at 66 to 71℃ and the pH at 7.5 to 8.0 can achieve good operational results. It can also increase the strength of sulfate-coated paperboard and improve the printability of the paperboard. When used on calendering roller groups, it can enhance the surface strength of the paperboard and the ink adhesion performance of the printing paper. Acid-treated starch can be used in the manufacturing of corrugated cardboard to replace sodium silicate as a non-toxic and moisture-proof adhesive.

Acid-treated starch can be used in processes that require film-forming and adhesive properties, such as sizing warp yarns, which can increase the strength of the yarns and reduce the frictional resistance during the weaving process. It can also be used for fabric finishing, mainly in all-cotton textiles, and can increase the stiffness of the products.