Bitter Taste Receptors
Reference work entry
Mammals are able to detect and interpret five main taste qualities: sweet, salty, sour, umami, and bitter, with a possible sixth modality (fat) having been recently identified (Liu et al. 2011). Like all sensory systems, those involved in the detection of taste are thought to have evolved as a tool to enhance survival in new environments and to increase fitness (Fig. 1).
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