What is Diacetyl?
Diacetyl (2,3-butanedione, CAS Number 431-03-8) is a naturally occurring organic compound belonging to the class of alpha-diketones. It is characterized by a distinctive butter-like aroma and taste, making it valuable in the food flavoring industry. Diacetyl is produced naturally during fermentation processes in foods like butter, cheese, wine, and beer. In commercial applications, it is synthesized for use as a flavoring agent in various food and beverage products.
Common Uses
Diacetyl is primarily used as a flavoring agent in the food industry to create buttery and creamy flavor profiles. Historically, it has been incorporated into products such as margarine, cooking oils, popcorn butter flavoring, dairy products, baked goods, and processed snack foods. The compound's use allows manufacturers to achieve authentic butter flavor in products that may not contain actual butter or that require flavor enhancement. However, its use has become more restricted in recent years, particularly in butter-flavored microwave popcorn applications due to occupational health concerns identified in the inhalation arena, not food consumption itself.