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General
- Tartaric acid is a
white crystalline organic acid.
- It occurs
naturally in many plants, particularly grapes, bananas, and tamarinds,
and is one of the main acids found in wine.
- It is added
to other foods to give a sour taste, and is used as an antioxidant.
- Salts of
tartaric acid are known as tartrates. It is a dihydroxy derivative of
dicarboxylic acid.
Process
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Tartaric acid is the
strongest and contains the most salts.
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During the process of
transformation from must to wine, the concentration of tartaric acid is
lowered because of the precipitation of potassium
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Bi tartrate which is caused by
the increase of the alcoholic grade and the decrease of the temperature.
Market
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Tartaric acid for foods on
stagnation due to price advance, Chinese products in low prices on a
rising tendency
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Tartaric acid in the golden age
according to the tremendous popularity of grape drinks doesn’t get out
from the stagnation
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Tartaric acid extracted from
grape peel depends totally on imports, and the import decreased by
37.7% as 96m..t, compared with 154m.t.
Application
-
Tartaric
acid and its salts are used in the food, cosmetic, pharmaceutical,
textile, colourings and printing sectors.
-
Tartaric acid is found in cream of tartar,
which is used in cooking candies and frostings for cakes.
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Tartaric acid is also found in baking powder,
where it serves as the source of acid that reacts with sodium
bicarbonate
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Tartaric acid is used in silvering mirrors,
tanning leather, and in Rochelle Salt, which is sometimes used as a
laxative
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