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New Taste Receptor for Glutamate Discovered

Back in July we wrote a series of articles about the effect of aging on our senses, including taste. In a study1 published in the latest issue of the American Journal of Clinical Nutrition, researchers describe the first receptor on the tongue found to be exclusively for detecting glutamate. If asked, most people can immediately list four common tastes – sweet, sour, salty and bitter. However, Asians have long recognized another taste called umami (savory). It is used to describe the taste and sensation of glutamate, an amino acid found in protein foods and the flavor enhancer monosodium glutamate (MSG). Glutamate is a non-essential amino acid used commercially as monosodium glutamate (MSG), because it is less toxic than salt, stable and easy to [...]

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