Citric Acid Ester; Used In Plasticizers, Food Additives, Lubricants, and Plastics, Among Others

 

Citric Acid Ester

Citric Acid Ester, or ester of citric acid, is mostly utilized as a food additive, as a foam stabilizer, as a pharmaceutical coating plasticizer for polyvinyl chloride, and in other comparable plastics. Citric acid is an acid that is found naturally in all citrus fruits. It is the most widely used acid in the food industry. Naturally occurring in citrus fruit, citric acid is used as an acidifier, emulsifier, flavoring agent, or as a natural preservative in the food industry. Citric acid ester is also used in e-cigarette fluids as a fictitious emulsifier. Thus, there is an increase in demand worldwide.

Citric acid is a synthesized by reacting citric acid with ethyl alcohol that is called esterification, a chemical process that combines citrus extracts and ethyl alcohol, produces Citric Acid Ester. Wine and cherries both naturally contain the compound. Citric acid ester is used in plasticizers, plastics, lubricants, food additives, and pharmaceutical coatings, among other things. Esters help enhance flavor and are especially useful as an emulsifier. Emulsifiers are FDA approved food additives that help products containing immiscible food ingredients to combine.

Citrate esters are considered functional alternatives to phthalate plasticizers, however their toxicity remains poorly understood. Citric Acid Ester have been proposed as a class of phthalate substitute plasticizers; however, information on their occurrence in indoor environments is rare. CITREM is an emulsifier used in the food industry and contains citric acid esters. CITREM helps a mixture containing fats and water stay blended. It is generally recognized as safe (GRAS) by the U.S. FDA. DATEM is another emulsifier like CITREM that is found in some formulas.

Moreover, Citric Acid Ester offer a range of benefits when used as plasticizers, solvent alternatives, lubricant additives and performance enhancers in aqueous & solvent-based polymer formulations. In 2020, Germany imported US$ 48.7 million in salts and esters of citric acid, becoming the 2nd largest importer of salts & esters of citric acid in the world.

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