Umami: glutamate, synergy and savory depth
Umami is the savory taste triggered mainly by glutamate, and boosted strongly by nucleotides (inosinate in meat and fish, guanylate in dried mushrooms). Kikunae Ikeda identified glutamate as the taste of kombu dashi in 1908.
Synergy
Glutamate plus nucleotides tastes much stronger than either alone. That is why dashi (kombu + bonito), Bolognese (tomato + Parmesan + meat) and chicken with mushrooms work.
Umami sources
- Glutamate: kombu, Parmesan, tomatoes (riper is higher), soy sauce, miso, fish sauce, MSG.
- Inosinate: bonito, anchovy, meat.
- Guanylate: dried shiitake.
About MSG
The FDA considers MSG "generally recognized as safe". It contains about a third of the sodium of table salt by weight.
Ask your bot about the science
Explain umami in plain English for a home cook, with one kitchen experiment I can do to see it, and how it applies to [dish].
Give temperatures in °F and °C and say if they are approximate.Where these facts come from
- American Chemical Society: Reactions, food chemistry explainers
- Exploratorium: Science of Cooking
- USDA FSIS: Safe temperature chart
- FoodSafety.gov: Safe minimum internal temperatures
- Harold McGee, On Food and Cooking (Scribner, 2004): the standard reference on kitchen chemistry
Checked Oct 29, 2026. Temperatures given for reactions are typical ranges, not sharp switches; they shift with moisture, pH and time. Food-safety numbers always come from USDA/FoodSafety.gov.
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