Disodium guanylate

Disodium guanylate (E627), also known as sodium 5'-guanylate and disodium 5'-guanylate, is the disodium salt of the flavor enhancer guanosine monophosphate (GMP). Disodium guanylate is a food additive and is usually used in synergy with glutamic acid (monosodium glutamate, MSG).

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As it is a fairly expensive additive, it is 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.

Disodium guanylate is produced from dried fish or dried seaweed and is often added to instant noodles, potato chips and snacks, savoury rice, tinned vegetables, cured meats, packet soup.

See also

• Guanosine monophosphate
• Disodium inosinate