Resistant dextrin, also known as indigestible dextrin, is a kind of low molecular weight water-soluble dietary fiber made from edible starch by paste refining reaction under acidic conditions. Resistant dextrin products are usually white to yellowish powdery solid, soluble in water, insoluble in organic reagents such as ethanol or acetone. The aqueous solution is yellowish, weak acidic, slightly sweet, and has no other peculiar smell. As a new type of water-soluble dietary fiber, resistant dextrin is widely used in food, health products, dairy products, medicine, daily chemical products, functional drinks and other fields because of its good processing performance, high digestion tolerance, low insulin index, low calorie, prevention of dental caries, easy dissolution and regulation of blood sugar.

As a low calorie food raw material, resistant dextrin contains a lot of dietary fiber. According to the content of dietary fiber, resistant dextrin can be divided into type I and type II. In recent years, with the improvement of living standards and the increasing pressure of life, the incidence rate of obesity, diabetes and coronary heart disease caused by excess nutrition and nutritional imbalance has been increasing year by year. Under this background, the market demand of dietary fiber has increased, and the market value of resistant dextrins as the most representative water-soluble dietary fiber has increased year by year.

According to the Research Report on market monitoring and future development prospects of China's resistant dextrin industry from 2021 to 2025 released by xinsijie Industry Research Center, resistant dextrin is a natural product with multiple functions, such as regulating intestinal health, preventing and treating cardiovascular disease, prebiotic benefits and reducing blood sugar. The global market of resistant dextrin is mainly concentrated in North America, Europe, China and Japan. In 2019, the global product of resistant dextrin will reach 54000 tons, and the market scale will be close to 1.2 billion yuan. In the early stage, limited by technology, only a few enterprises in Japan, France, Britain and other countries had the production technology of resistant dextrin, such as Songgu chemical, French rogate company, British Tailai company and so on.

In recent years, with the upgrading of market consumption, the growth rate of global dextrin production capacity has been unable to meet the expanding market demand. Attracted by the market prospect, more and more enterprises enter the dextrin market. In this context, the global dextrin market scale is gradually expanding. With the eastward transfer of global industry, China has gradually become a major producer of resistant dextrin in the world. Domestic manufacturers include Shandong baolingbao, Shandong Bailong Chuangyuan biology, Guangzhou Huahui biology, Shandong Hairong biology, Lianyungang rogate (China) fine chemicals, etc., among which Shandong Bailong Chuangyuan biology is the first manufacturer of resistant dextrin, It is also the first enterprise in China to obtain the production license of dextrin.

New thinking industry analysts said that as a new type of water-soluble dietary fiber, the health care function of resistant dextrin is outstanding. In recent years, with the continuous release of market demand, the application of resistant dextrin in food, health care products, medicine, daily chemical products and other fields is more and more in-depth. On the whole, under the background of market consumption upgrading and healthy development of food consumption, there is a broad space for the development of food market in the future.

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