The Evaluation of Prenylflavonoids Compounds in Romanian Beer

The evalution of prenylflavonoids from Romanian beer was done by an analytical methodology based on sample purification by centrifugation and subsequent analysis of the beer by high performance liquid chromatography with mass spectrometry MS/MS detection. In commercial beers less than 50 µg/l was found for XN, showing that a significant lost of this compound occurs during the brewing process. The isoxanthohumol is was found as principal prenylflavonoid in beer. The major concentration of prenylflavonoids was found in dark beer at 0.318 mg/l.