Yellow dextrin: A natural material with multiple uses

Yellow dextrin is a modified starch made from natural starchy raw materials. Its unique physical properties and chemical structure make it widely used in many fields. This article will introduce the basic properties, production methods, application fields and development prospects of yellow dextrin.

Yellow dextrin is produced by the hydrolysis of starch with dextrin enzyme. Its molecular weight is smaller than that of original starch but larger than that of maltose, and it is a porous solid powder. The color of yellow dextrin is light yellow or yellow, mainly due to the presence of reducing groups such as ketone and aldehyde groups in its molecular structure. These groups can undergo oxidation reactions under certain conditions, resulting in a change in the color of yellow dextrin.

The production methods of yellow dextrin mainly include three types: wet method, dry method and fluidized method. The wet method involves mixing starchy raw materials with water to form starch milk, and then adding dextrin enzyme for hydrolysis. The dry method involves adding water to starchy raw materials to form starch milk, drying it to make dry powder, and then adding dextrin enzyme for hydrolysis. The fluidization method involves adding water to starchy raw materials to form starch milk, and then adding dextrin enzyme for hydrolysis in the fluidized state. These three methods each have their own advantages and disadvantages. The appropriate method should be selected based on specific production conditions and requirements.

Yellow dextrin, as an important industrial raw material, is widely used in fields such as food, medicine, papermaking, and coatings. In the food industry, yellow dextrin can be used as a binder and thickener for candies, biscuits, pastries and other foods, improving the taste and stability of the food. In the pharmaceutical industry, yellow dextrin can be used as an excipient for tablets and a filter aid in the pharmaceutical process, improving the quality of drugs and production efficiency. In the papermaking and coating industries, yellow dextrin can be used as a coating for paper and a binder for coatings, enhancing the quality and performance of products.

Overall, yellow dextrin is a natural material with multiple uses. Its unique physical properties and chemical structure make it widely applied in many fields. With the continuous advancement of technology and the expansion of application fields, the production and use of yellow dextrin will receive increasing attention and emphasis from people.