What's happening is that the citric acid denatures some proteins. Heat also denatures proteins, so it's similar to cooking, but since no (or, at least, very very little) heat is involved, it's not exactly the same (it won't necessarily kill parasites or bacteria, for example, and only those portions that the citric acid penetrates to will be affected at all).
Yes.
Citric acid is the same acid often found in citrus fruits, like lemons, limes and Oranges.
Pure citric acid has a generic sour flavor, but yes, I suppose it could be used to flavor food.
Gives it flavor
Citric acid can be used for many things... actually Vitamin C contains citric acid...
Citric acid is a crystalline acid (C6H8O7) from the fermentation of carbohydrates or from lemon, lime, and pineapple juices. Citric acid is used in preparing citrates, in flavorings, and metal polishes.
Possible, but it depends on what the acid is used for.
Vinegar, acetic acid or citric acid.
Acetic acid (vinegar), citric acid
Preservative
No. Citric acid is an organic acid
yes it contains citric acid as a main ingredient
It can be if you can convert the citric acid to a chromophore, i.e., something that is colored. Otherwise, you cannot.
Citric acid is a crystalline acid (C6H8O7) from the fermentation of carbohydrates or from lemon, lime, and pineapple juices. Citric acid is used in preparing citrates, in flavorings, and metal polishes.
Citric acid is considered to be a weak acid.