Alginate is a natural substance derived from the cell walls of brown seaweed. It is commonly used in food products as a thickening agent, stabilizer, and emulsifier. Alginate can also form gels when mixed with calcium ions, making it useful in various culinary applications, such as creating edible gels and spheres. In addition to its culinary uses, alginate has applications in the medical field. It is often used in wound dressings due to its ability to absorb moisture and promote healing. Alginate is also utilized in dental impressions and as a medium for cell culture in laboratories.