Citric acid esters are compounds formed by the reaction of citric acid with alcohols. They are commonly used as emulsifiers, stabilizers, and flavoring agents in food products. These esters help mix ingredients that typically do not blend well, such as oil and water, improving the texture and consistency of various foods. In addition to their use in the food industry, citric acid esters are also found in cosmetics and pharmaceuticals. They serve as surfactants and can enhance the absorption of active ingredients in topical applications. Their versatility makes them valuable in multiple sectors, contributing to product quality and performance.