O metallic mouthfeel o fat there may be receptor

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Unformatted text preview: do we perceive? • Sweet o sugars, chloroform, saccharin, artificial sweeteners o perception is related to stereochemistry – shape of molecule is important o molecular activates G- protein coupled receptor (GPCR) which initiates release of gustducin (protein) ! gustducin leads to neurotransmitter release ! neurotransmitter release leads to taste perception • Other tastes involving GPCR o Bitterness ! alkaloids – PTC, PROP, caffeine, quinine o Umami (savoury) ! glutamic acid (MSG) ! detecti...
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