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Malic and tartaric acid are the primary acids in wine grapes. The acids in wine are an important component in both winemaking and the finished product of wine. They are present in both grapes and wine, having direct influences on the color, balance and taste of the wine as well as the growth and vitality of yeast during fermentation and protecting the wine from bacteria.
Wines that have not gone through malolactic fermentation will often be "sterile bottled" with a 0.45-micron membrane filter (pictured without housing). For some wine styles, such as light, fruity wines or for low-acid wines from warm climates, malolactic fermentation is not desired.
A proper balance of acidity must be struck with the other elements of a wine, or else the wine may be said to be too sharp – having disproportionately high levels of acidity – or too flat – having disproportionately low levels of acidity. The three main acids found in wine are tartaric acid, malic acid and lactic acid.
The major acids in wine are tartaric and malic acid with citric and succinic acids playing a small role. The titratable acidity or "TA" (also referred to as "total acidity") is the measure of the tartaric acid in the grapes. This is the most abundant acid and also the one acid that has the most pronounced and long lasting impact on the taste of ...
Esters: [2] Ethyl acetate is the most common ester in wine, being the product of the most common volatile organic acid — acetic acid, and the ethyl alcohol generated during the fermentation. Norisoprenoids, such as C13-norisoprenoids found in grape (Vitis vinifera) [8] or wine, [9] can be produced by fungal peroxidases [10] or glycosidases. [11]
Similarly, high-acid white wines — like Albariño, Riesling, Chablis, and Gewürztraminer — work beautifully with low-acid, fat-forward dishes, as do high-acid reds such as Barbera, Chianti ...