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Appetite. 2004 Aug;43(1):1-3.

The sixth taste?

Author information

1
Department of Psychology, Brooklyn College of the City University of New York, 2900 Bedford Ave., Brooklyn, NY 11210, USA. asclafani@gc.cuny.edu

Abstract

Five taste qualities are recognized in humans: sweet, bitter, sour, salty, and umami. Rats and some other species may also have a sixth taste. Behavioral and electrophysiological data suggest that rats can taste polysaccharides derived from starch. Furthermore, the tastes of sugars and polysaccharides appear to differ in quality. Rats also discriminate different types of polysaccharide and starch molecules. Recent studies indicate that sweet taste is mediated by a T1R2 and T1R3 receptor complex but the identity of the hypothesized polysaccharide taste receptor remains to be established.

PMID:
15262010
DOI:
10.1016/j.appet.2004.03.007
[Indexed for MEDLINE]
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