What is a Perillaldehyde?

Perillaldehyde is a naturally occurring monoterpene aldehyde found primarily in the essential oils of Perilla and related plants. Its chemical formula is C₁₀H₁₄O, and it appears as a colorless to pale yellow liquid with a refreshing aroma reminiscent of citrus and mint. It is widely used in food, cosmetics, and fragrance products. As a fragrance ingredient, perillaldehyde is added to chewing gums, candies, soaps, shampoos, and air fresheners. In East Asia, it is traditionally valued for its role in flavoring and aroma. Being a natural compound, it also garners attention as an alternative to synthetic fragrances.

Perillaldehyde is also known for its potential antimicrobial and antioxidant properties, making it a subject of research for food preservation and functional materials. Despite its natural origin, care must be taken when handling it in high concentrations, as it may cause skin or mucous membrane irritation.

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