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Heavy water tastes sweet -Czech Academy/Hebrew University/Tech Munich
Posted by: Steve G.
Date: April 07, 2021 07:49PM
Sorry, available only at Oak Ridge Costco-$81.87/gallon

Fact! Heavy water is indeed heavier than normal water (which contains a tiny amount of heavy water molecules naturally), and heavy-water ice will sink in normal water.

Fact! Because it has two extra neutrons, heavy water is approximately 10% heavier than ordinary water

Heavy water tastes sweet.
[www.eurekalert.org]


In their research article published in Communications Biology, they show conclusively that, unlike ordinary water, heavy water tastes sweet to humans but not to mice, with this effect being mediated by the human sweet taste receptor.

Heavy water (D2O) differs from normal water (H2O) by an H-D isotopic substitution only, and as such, should not be chemically distinct.
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"Despite the fact that the two isotopes are nominally chemically identical, we have shown conclusively that humans can distinguish by taste (which is based on chemical sensing) between H2O and D2O, with the latter having a distinct sweet taste,"
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While clearly not a practical sweetener, heavy water provides a glimpse into the wide-open chemical space of sweet molecules. Since heavy water has been used in medical procedures, the finding that it can elicit responses of the sweet taste receptor, which is located not only on the tongue but also in other tissues of the human body, represents an important information for clinicians and their patients. Moreover, due to wide application of D2O in chemical structure determination, chemists will benefit from being aware of the present observations.
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"Our study thus resolves an old controversy concerning the sweet taste of heavy water using state-of-the-art experimental and computer modelling approaches, demonstrating that a small nuclear quantum effect can have a pronounced influence on such a basic biological function as taste recognition," concludes Pavel Jungwirth.
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Re: Heavy water tastes sweet -Czech Academy/Hebrew University/Tech Munich
Posted by: Lux Interior
Date: April 08, 2021 09:56AM
Just don't use it to re-hydrate your henchmen.
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