Articles

Fractionation by SFE and microcolumn analysis of the essential oil and the bitter principles of hops.

Author

Verschuere M, Sandra P, David F

Date

10/1992

Journal

J Chromatogr Sci

Abstract

Supercritical fluid extraction (SFE) is evaluated and optimized for the enrichment and fractionation of the essential oil and the bitter principles of hops (Humulus lupulus), both of which contribute to the flavor of beer. Profiles of the essential oil of different hop varieties are compared. The bitter principles, the humulones and lupulones, are analyzed by miniaturized liquid chromatography (micro- LC) and by micellar electrokinetic chromatography (MEKC).