うま味Umami

Umami ( from Japanese: うま味, pronounced), or savoriness, is one of the five basic tastes. It is characteristic of broths and cooked meats.

People taste umami through taste receptors that typically respond to glutamates and nucleotides, which are widely present in meat broths and fermented products. Glutamates are commonly added to some foods in the form of monosodium glutamate (MSG), and nucleotides are commonly added in the form of disodium guanylate, inosine monophosphate (IMP) or guanosine monophosphate (GMP). Since umami has its own receptors rather than arising out of a combination of the traditionally recognized taste receptors, scientists now consider umami to be a distinct taste.

Food, beverages, or condiments that have a strong umami flavor include meats, shellfish, fish (including fish sauce and preserved fish such as Maldives fish, katsuobushi, sardines, and anchovies), dashi, tomatoes, mushrooms, hydrolyzed vegetable protein, meat extract (Bouillon cubes), yeast extract (beer, Marmite, Vegemite), kimchi, cheeses (Parmesan, Asiago cheese, or blue cheese), as well as sauces such as Brown sauce, Worcestershire sauce, and soy sauce.

In 1908, Kikunae Ikeda of the University of Tokyo scientifically identified umami as a distinct taste attributed to glutamic acid. As a result, in 1909, Ikeda and Saburōsuke Suzuki founded Ajinomoto Co., Inc.

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