Polygalacturonic acid sodium salt is widely used in the food industry as a stabilizer and thickener, particularly in products like jams, jellies, and sauces, where it helps maintain texture and consistency. In the pharmaceutical sector, it serves as an excipient in drug formulations, aiding in controlled release and improving the stability of active ingredients. Additionally, it is employed in cosmetics for its moisturizing and skin-conditioning properties, often found in creams and lotions. Its ability to form gels also makes it useful in biomedical applications, such as wound dressings and tissue engineering scaffolds. In agriculture, it is utilized as a soil conditioner to enhance water retention and nutrient availability for plants.