How is Gentiana lutea used in bitters and liqueurs?

Gentiana lutea, commonly known as the great yellow gentian, is a plant species native to Europe and western Asia. It is primarily utilized in the production of bitters and liqueurs as a source of flavoring.1

In the context of these beverages, the plant's root is used to impart a characteristic bitter taste. Bitters are aromatized, often alcoholic liquids that incorporate various bitter substances—such as alkaloids or glycosides—derived from herbs, roots, or barks to serve as digestives, appetizers, or flavorings in alcoholic drinks. While the specific recipes for these products are often kept secret by manufacturers, Gentiana lutea is a recognized ingredient used to provide the essential bitter profile that defines these preparations.2