Gel polysaccharide is a new microbial polysaccharide with many unique functions. Since 1997, when the health organization of the United States approved gel polysaccharide as a food additive, the functional properties of gel polysaccharide have been vividly reflected in the food industry, and its application scope has been continuously expanded. In addition to being used in the food industry, some scientists have recently studied the application of gel polysaccharide instead of dextran as a filler in the chemical industry, and achieved good separation results.

At present, foreign countries have begun to produce gel polysaccharides for this purpose. Gel polysaccharide is also effective as thickener, suspending agent, stabilizer, humectant and rheological improver in cosmetic industry, so it can be applied to various types of cosmetics. According to experts' analysis, the demand for gel polysaccharide will increase by 30%, and the world situation is in a state of short supply. However, the research on gel polysaccharide in China is still in the stage of understanding, and it is still a long way from industrial production. Therefore, accelerating the development of gel polysaccharide plays an important role in adjusting the rural industrial structure in China, increasing the added value of agricultural products and increasing farmers' income.