I G Disodium 5 Ribonucleotide is a mixture of two nucleotide derivatives - disodium inosinate (IMP) and disodium guanylate (GMP). This is used as a flavor enhancer in a variety of food products, including snack foods, soups, and seasonings. DI G Disodium 5 Ribonucleotide works by enhancing the taste of foods, particularly the umami or savory taste. It does this by stimulating the taste receptors on the tongue, which can increase the perception of other flavors in the food.