What is the function of dextrin in food

Dextrin is not unfamiliar to everyone. According to its classification, it is widely used in adhesives such as food, paper, casting, wallpaper, labels, stamps, and adhesive tape. Generally, dextrins are divided into white dextrin, yellow dextrin, and British gum (British gum).
When making tablet adhesives, it is necessary to dry quickly, disperse quickly, bond quickly, and re wet soluble. White dextrin or low viscosity yellow dextrin products can be selected When making labels and stamp adhesives, high viscosity is required to form a film with strength and toughness, suitable for using white dextrin or British glue Dextrin can be used as a printing paste in textile printing and dyeing
Dry dextrin is a yellow white powder that is insoluble in alcohol but easily soluble in water. When dissolved in water, it has strong viscosity. When starch raw materials are steamed and boiled, starch molecules are thermally decomposed, first producing dextrin If a drop of iodine is added at this time, the solution will turn reddish purple instead of blue like starch when it encounters iodine In production, starch raw materials are usually steamed and boiled at high temperature and high pressure, causing starch cells to rupture and starch to change from a granular state to a liquid paste like dextrin. This process is called gelatinization of raw materials The degree of gelatinization is expressed by gelatinization rate Gelatinization rate=dextrin or soluble carbohydrates x 100%/total sugar
1、 Preparation method: Starch pretreatment → Drying → Heat treatment → Cooling → Finished product (dextrin)
(1) The reaction temperature of cyclodextrin is low, the pH value is low, and there are fewer colored products
(2) Yellow dextrin is a highly effective product at low pH and high temperature
2、 Nature
(1) White cyclodextrin has a wide viscosity range, and as the viscosity increases, it gradually decreases
(2) When the solubility of cyclodextrin reaches 100%, the viscosity decreases and the speed slows down to a certain value