Disodium guanylate, also known as sodium 5'-guanylate and disodium 5'-guanylate, is a natural sodium salt of the flavor enhancing nucleotide guanosine monophosphate (GMP). Disodium guanylate is a food additive with the E number E627. It is a common flavor enhancer often used in combination with monosodium glutamate (MSG) and disodium inosinate in processed foods. As it is a fairly expensive additive, it is usually not used independently of glutamic acid; if disodium guanylate is present in a list of ingredients but MSG does not appear to be, it is likely that glutamic acid is provided as part of another ingredient such as a processed soy protein complex. It is often added to foods in conjunction with disodium inosinate; the combination is known as disodium 5'-ribonucleotides. Owing to the sufficient availability and stable quality of raw materials, large-scale production of disodium guanylate is currently predominantly realized via bio-fermentation processes of Corynebacterium stationis and Escherichia coli. Major disodium guanylate manufacturers include Ajinomoto, CJ CheilJedang, as well as some Chinese enterprises like Sinofi. It is often added to instant noodles, potato chips and other snacks, savory rice, tinned vegetables, cured meats, and packaged soup.
See also
References