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Oral zinc sulfate solutions inhibit sweet taste perception

Keast, Russell, Canty, Thomas M. and Breslin, Paul A. S. 2004, Oral zinc sulfate solutions inhibit sweet taste perception, Chemical senses, vol. 29, no. 6, pp. 513-521.

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Title Oral zinc sulfate solutions inhibit sweet taste perception
Author(s) Keast, Russell
Canty, Thomas M.
Breslin, Paul A. S.
Journal name Chemical senses
Volume number 29
Issue number 6
Start page 513
End page 521
Publisher Oxford University Press
Place of publication Oxford, England
Publication date 2004
ISSN 0379-864X
1464-3553
Keyword(s) cyclamate
zinc
sweet taste inhibition
human psychophysics
Summary We investigated the ability of zinc sulfate (5, 25, 50 mM) to inhibit the sweetness of 12 chemically diverse sweeteners, which were all intensity matched to 300 mM sucrose [800 mM glucose, 475 mM fructose, 3.25 mM aspartame, 3.5 mM saccharin, 12 mM sodium cyclamate, 14 mM acesulfame-K, 1.04 M sorbitol, 0.629 mM sucralose, 0.375 mM neohesperidin dihydrochalcone (NHDC), 1.5 mM stevioside and 0.0163 mM thaumatin]. Zinc sulfate inhibited the sweetness of most compounds in a concentration dependent manner, peaking with 80% inhibition by 50 mM. Curiously, zinc sulfate never inhibited the sweetness of Na-cyclamate. This suggests that Na-cyclamate may access a sweet taste mechanism that is different from the other sweeteners, which were inhibited uniformly (except thaumatin) at every concentration of zinc sulfate. We hypothesize that this set of compounds either accesses a single receptor or multiple receptors that are inhibited equally by zinc sulfate at each concentration.
Notes This is a pre-copy-editing, author-produced PDF of an article accepted for publication by Chemical senses following peer review. The definitive publisher-authenticated version Keast, Russell, Canty, Thomas M. and Breslin, Paul A. S. 2004, Oral zinc sulfate solutions inhibit sweet taste perception, Chemical senses, vol. 29, no. 6, pp. 513-521. is available online at http://dx.doi.org/10.1093/chemse/bjh053
Language eng
Field of Research 170112 Sensory Processes, Perception and Performance
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2004, Oxford University Press
Persistent URL http://hdl.handle.net/10536/DRO/DU:30004138

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.