Characteristics of edible modified starch in industry

Modified starch (starch) is used more and more in our application, which can improve the Q sense of products, prevent retrogradation and enhance brightness. Starch spread is the polymerization of glucose molecules, which is the most common storage form of carbohydrates in cells. Starch can be regarded as a high polymer of glucose. Starch is not only used for food, but also used for making dextrin, maltose, glucose, alcohol, etc. It is also used for preparing printing paste, sizing textiles, sizing paper, and pressing pharmaceutical tablets. Genetic engineering exhibition, also known as gene splicing technology and DNA recombination technology, is based on molecular genetics and modern methods of molecular biology and microbiology. It constructs hybrid DNA molecules from different sources in vitro according to the pre-designed blueprint, and then introduces them into living cells to change the original genetic characteristics of organisms, obtain new varieties and produce new products. Cassava modified starch, pregelatinized modified starch etc. Intuitively, we will feel softness, wettability and so on. The following is to share the knowledge about modified starch (zhī shí) for your reference.1. The use of modified starch can make it maintain a relatively high viscosity stAbility under the conditions of high temperature, high shear force and low hydrogen ion concentration index, thus maintaining its thickening ability. Many food need to be processed or sterilized at high temperature, and the original starch molecules are easy to depolymerize into small molecules at high temperature, and the viscosity declines, making it lose its thickening ability. Mechanical stirring and pump delivery in food will produce shear force. Some foods have organic acid (Acerbity), which makes the system acidic. High shear force and acidic environment can degrade raw starch molecules and lose the ability to stabilize food. If stabilized starch (chǔ lǐ) is adopted, the above defects can be avoided, so that the food has a good configuration under high acidity, high temperature, long heating time, strong stirring or homogenization, and can be applied to various thickening ranges.2. (t ō ng gu) denaturation treatment (chǔ lǐ) can make starch difficult to retrogradate in the process of room temperature or low temperature preservation (guò chéng), thus avoiding food coagulation or gelation to form water quality. Starch molecules in food will condense through intermolecular rearrangement through hydrogen bonds during preservation, especially during cold storage. As a result, the molecules will dehydrate and shrink, the texture of solid food will harden, and even water will precipitate. The fluid food will be layered up and down, turbid and deteriorate. Denaturing introduces hydrophilic groups between starch molecules, which can improve the hydrophilic ability of starch molecules and prevent starch molecules from condensing, dehydrating and shrinking in the form of hydrogen bonds.