I immediately thought of Chinese and sweet and sour... sweet and bitter doesnt sound right. I dont know the difference tbh.
I've never had a problem distinguishing between sour and bitter. To me a lemon is sour.
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Hey... pssst.... that's an l (as in luscious) at the end of my name, not an i I like my beer bitter, not sour.
The flesh of the lemon is sour, the peel is bitter.
there are five basic tastes that can be perceived by the human tongue. these are bitterness, sourness, saltiness, sweetness and savoriness. bitter is the most sensitive among these tastes, perhaps an evolutionary response to the fact that a large number of toxic substances found in nature are bitter. sourness, on the other hand, is indicative of acidity.
examples of bitter: coffee, bitter melon, beer, unsweetened cocoa, citrus peels.
examples of sour: lemon, orange, grape, melon, wine and sour milk.
bitterness is perceived to be unpleasant, sharp, or disagreeable. the perception of bitter taste is facilitated by the combination of a taste receptor (Type 2) and a G protein (gustducin). the type of taste receptor, monomeric or surface bound, determines the various bitter ‘ligands’. in genetic studies for bitter taste perception, synthetic substances like phenylthiocarbamide (PTC) and PROP or 6-n-propylthiouracil are used. To ‘supertasters’ both these substances are extremely bitter.
sourness is detected by the concentration of hydronium ions in the hydrogen ion channels. hydronium ions are formed from water and acid. hydrogen ions formed permeate the amiloride channels allowing for detection of sourness. apart from these mechanisms of sour taste detection, there are other mechanisms also suggested. among these prohibition of potassium channels by hydrogen ions leading to depolarization of cell, conversion of CO2 to bicarbonate ions facilitating weak acid transport are notable.
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To me, it's always been something you know when you taste it, which is why I couldn't vote in the poll.
By sour milk, I guess they mean yogurt? How is this like an orange?
D x
I don't consider oranges, grapes or melons to be sour. Just saying.
According to Peter, Paul, and Mary "The fruit of the lemon is impossible to eat" so how do we know that it is bitter or sour?
Wait... that should be "The fruit of the POOR lemon is impossible to eat" So, now the question is ...why is the taste of the lemon dependent on the economic status of the lemon?
