Astringency is a tactile oral sensation characterized by a in the mouth. Unlike basic tastes like sweet or salty, it is a physical mouthfeel rather than a flavor, caused by the contraction or "binding" of body tissues. Core Mechanisms
: While scientists debate if it's a taste, research shows it is primarily a tactile sensation mediated by the trigeminal nerve, rather than just taste buds. Common Sources
: This binding causes the salivary proteins to aggregate and precipitate, effectively removing the mouth's natural "slippery" layer and increasing friction between oral surfaces.
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