Natamycin is widely used as a natural antifungal agent in the food industry to prevent the growth of mold and yeast. It is commonly applied to the surface of cheese, sausages, and other dairy products to extend shelf life and maintain quality. In agriculture, it is used to protect crops from fungal infections. Additionally, natamycin is employed in ophthalmology as an eye drop to treat fungal eye infections, offering a safe and effective solution for such conditions. Its selective action against fungi without affecting bacteria makes it a valuable tool in both food preservation and medical treatments.