**5. Conclusion**

Natural polymers obtained from seaweed and other microorganisms play a very important role in our life as an alternative to synthetic polymers. Natural polymers such as alginate have opened the way for use in various fields of medicine, industry and agriculture due to properties such as biocompatibility, biodegradability, bioadhesion, formation of gels, etc. Biological materials made of alginate are used in the medical field as drug delivery systems, tissue engineering, wound healing aid in dressings, cell cultures. On the other hand, alginate has been used in recent decades due to its potential applications in various industrial fields such as edible coatings in the food industry, helping to treat industrial wastewater, textile industries, papermaking and anti-corrosion coatings. In the field of agriculture, alginate is used to transfer weed poisons, transfer plant growth stimulants, control plant and animal diseases and pests, help increase the germination of plant seeds, etc. The wide variety of current applications of alginate as well as the increasing number of studies in different fields show the potential of this biopolymer for more applications in the future.
