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Citric Acid

Common name for citric acid or Lemon Zhou as saying the old housewives. Citric acid is a weak organic tricarboxylic acid. Is widely distributed in the plant kingdom mainly lemons and other citrus fruits, kiwi, strawberries and many other fruits. Excellent natural preservative and is also used as a regulator Citric acid is considered safe for use in food and not carcinogenic. Is normal cell component, degraded and used by the body without side effects. Reported psefdoallergikes reactions (disanexia), but are rare. acidity and aromatics. It's a cycle intermediate carbohydrate metabolism in biota great biological importance (citric acid cycle - cycle Krebs), part of the process by which living organisms convert food into energy. In normal conditions is a colorless crystalline powder. Found either in anhydrous or in hydrated form, which contains one molecule of water for each mole of citric acid. Easily soluble in water, alcohol and ether. The discovery of citric acid is attributed to the alchemist Jabir Ibn Hayyan in the 8th century. Was first isolated in 1784 by the Swedish chemist Carl Wilhelm Scheele during an experiment with lemon juice. The citric acid is manufactured either from the lemon juice by precipitation with calcium carbonate in the form of insoluble calcium citrate, or mainly by the fermentation of sugars or kitromykites molds. In the second method, the sugar is fermented for up to 50% citric acid. The filtered dilute solution of citric acid was added calcium hydroxide resulting in the precipitation of insoluble calcium citrate, which is then treated with sulfuric acid to produce citric acid and calcium sulphate as byproduct. Citric acid is used as a flavoring and preservative in food and beverages, especially soft (eg lemon). As a food additive labeled with the code E330. The ability to form chelates with metals makes it useful in soaps and laundry detergents. The reason is that the effect of this in the hard water, leaves detergents act freely without using additional softener. Also used in dyeing and for the preparation of derivatives of pharmacological importance, such as ferric citrate, the methylenokitriko acid. Finally, the status of the three carboxylate groups to give protons in solution makes an excellent regulator of pH (buffer) in acidic solutions. The citric acid is safe for use in food and is not carcinogenic. Is normal cell component, degraded and used by the body without side effects. Reported psefdoallergikes reactions (disanexia), but are rare.