
Distarch Phosphate, with the CAS number 55963-33-2, is a modified starch widely used in various industries. It is produced through a chemical modification process that introduces phosphate groups to the starch molecules. This modification enhances the starch's properties, such as its stability, thickening ability, and resistance to shear, heat, and acid.
The product typically appears as a white to off - white powder. It has a high degree of purity and is soluble in hot water, forming a viscous solution. The degree of substitution (DS) of phosphate groups can vary depending on the manufacturing process, which affects its performance in different applications.
In the food industry, Distarch Phosphate is used as a thickening agent, stabilizer, and emulsifier. It can improve the texture and stability of food products, such as soups, sauces, dressings, and dairy products. For example, in soups, it helps to prevent syneresis (the separation of liquid from the solid phase) and gives a smooth, consistent texture. In dairy products like yogurt, it enhances the viscosity and improves the mouthfeel.
In the pharmaceutical industry, it can be used as a binder in tablet formulations. It helps to hold the active ingredients together and ensures the proper disintegration and dissolution of the tablets in the body. Additionally, it can be used as a coating material for tablets to protect the active ingredients and control their release.
In the textile industry, Distarch Phosphate is used as a sizing agent. It can improve the strength and smoothness of the yarns, making them easier to weave. It also provides better abrasion resistance to the fabrics.
When using Distarch Phosphate in food applications, it is usually added to the liquid phase during the cooking or mixing process. The amount of Distarch Phosphate required depends on the desired viscosity and stability of the final product. Generally, a concentration of 0.5% - 3% (w/w) is commonly used. It should be dispersed well in cold water first to avoid lumping, and then heated to activate its thickening properties.
In pharmaceutical tablet production, it is mixed with the active ingredients and other excipients during the granulation process. The mixture is then compressed into tablets. The proportion of Distarch Phosphate in the tablet formulation can range from 5% - 20%, depending on the type of tablet and the properties of the active ingredients.
In the textile industry, it is dissolved in water to form a sizing solution. The yarns are then passed through the solution, and excess liquid is removed by squeezing. The treated yarns are then dried to form a thin film of Distarch Phosphate on the surface.
Food Industry - Soup Production
A soup manufacturer was facing the problem of inconsistent texture and syneresis in their products. They decided to use Distarch Phosphate as a thickening and stabilizing agent. They added 1.5% (w/w) of Distarch Phosphate to their soup recipe. After the addition, the soup had a smooth and consistent texture throughout the shelf - life. There was no visible separation of liquid, and the overall quality of the soup improved significantly. The customers also reported a better mouthfeel and higher satisfaction with the product.
Pharmaceutical Industry - Tablet Formulation
A pharmaceutical company was developing a new tablet formulation for a poorly soluble drug. They used Distarch Phosphate as a binder at a concentration of 10%. The tablets had good hardness and friability, and the drug dissolution rate was within the acceptable range. The use of Distarch Phosphate also improved the processability of the tablet formulation, reducing the number of defective tablets during production.
Textile Industry - Yarn Sizing
A textile mill was experiencing high breakage rates during the weaving process. They applied a sizing solution containing 5% Distarch Phosphate to their yarns. After treatment, the yarns became stronger and more resistant to abrasion. The breakage rate during weaving decreased by 30%, which led to increased productivity and reduced production costs.
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