What is algin? What role and efficacy does algin have?

　　What is algin? Today, Qingdao Nanshan Biotechnology Co., Ltd. introduces the function and efficacy of algin, which is a general term for sodium, potassium, calcium and magnesium salts of alginic acid extracted from kelp, Sargassum and other brown algae.

　　Algin was extracted from Laminaria stenophylla by Stanford in 1881 for the first time, and it was not until 1929 that the United States officially started industrial production. The main raw materials for producing fucoidan are Macrocystis pyrifera, Laminaria japonica, Laminaria digitata, Laminaria hyperborea, Ascophyllum nodosum, kelp (Ecklonia maxima) and so on.

　　A substance extracted from brown algae. Its main components are polymer compounds composed of polymannuronic acid and polygulouronic acid. Algin is widely found in the cell walls of hundreds of kinds of brown algae, such as kelp, kelp, carrageenin, fucoidan and Sargassum. The preparation method of fucoidan is that the above algae are used as raw materials, dissolved and extracted with dilute alkali solution, and then made into sodium salt. The product is soluble in water and has high viscosity. It can be used as an auxiliary agent in food, textile, rubber, medicine and other industries.

　　In quick-frozen food, alginate is a hydrophilic molecule with strong hydration and cohesiveness, which makes it difficult for the water in the filling to form ice crystals. Fucoidan is a kind of polysaccharide widely existing in all kinds of brown algae, and it is a general term for hydrophilic derivatives of alginic acid. In Europe, the output of pickled cabbage and fingered kelp is more, so the raw materials for extracting alginate are pickled cabbage and fingered kelp; Giant algae grow in large quantities along the coast of America, so it is the main raw material for extracting alginate in American countries; In Asia, cultured kelp is very common, and the output is also very large, so cultured kelp in Asia has become the main raw material for extracting alginate.

　 　　Algin can treat arteriosclerosis, prevent human body from absorbing heavy metals such as lead and cadmium, and eliminate radioactive toxins in human body. Because of its high water content, fucoidan can form gel-like substances in the intestine, so it helps to eliminate toxic substances and prevent constipation and intestinal cancer.
Algin can be used as food thickener, emulsifier, quality improver, etc. Algin can be used in pharmaceutical industry, as plasma substitute, hemostatic agent, scald gauze, dental impression agent, pharmaceutical excipient, new barium meal contrast agent, capsule, etc. It can be used in water treatment, as hard water softener and scale remover. It can be used in agriculture, as insecticide, growth promoter, water retaining agent, etc. Algin can be made into reactive dyes, disperse dyes, and so on. Alginate is used in rubber industry, which can be used as rubber thickener, oil resistant agent, etc. in machinery industry, as welding agent and cutting agent; Used in daily chemical industry, it can be used as hairdressing agent, detergent, etc. In addition, fucoidan also has important uses in petroleum, mining, building materials, ceramics and other industries.