Caprylaat

Caprylaat, also caprylate, is the term for the salt or ester of caprylic acid (octanoic acid). Caprylic acid is a medium-chain fatty acid consisting of eight carbon atoms and is found in small amounts in coconut oil and palm kernel oil. The caprylate anion forms salts such as sodium caprylate and potassium caprylate, and it also occurs in ester forms such as glyceryl caprylate and ethyl caprylate.

Chemistry and production

Caprylate salts are prepared by neutralizing caprylic acid with alkali metals (for example sodium or potassium hydroxide). Ester derivatives are produced by esterification of caprylic acid with alcohols, yielding compounds like glyceryl caprylate and ethyl caprylate. These substances are used for their fatty-acid–related properties in various formulations.

Applications

In biopharmaceutical manufacturing, caprylate is used in the caprylate treatment technique to inactivate enveloped viruses during the production of plasma-derived medicines, helping to improve product safety. Caprylate esters are also employed in cosmetics and personal care products as emollients and conditioning agents. Glyceryl caprylate, for example, serves as an emollient and surfactant, while ethyl caprylate can act as a solvent and fragrance carrier. Caprylate and its esters may exhibit antimicrobial properties, which can be advantageous in certain formulations.

Safety and regulation

Caprylate salts and esters are generally regarded as safe when used within established concentrations in foods, medicines, and cosmetic products. As with many fatty-acid–derived ingredients, high concentrations can cause irritation in sensitive individuals or adverse GI effects if ingested in large amounts. Proper handling and adherence to regulatory guidelines are advised.