High-Performanc Separation of Unmodified and Reduced Hop and Beer Bitter Compounds by a Single High-Performance Liquid Chromatographic Method

摘要

An improved hig-performance liquid chromatographic method for the separation of the isoxanthohumol iso-α-acid, rho-iso-α-acids, tetrahy- dro-iso-α-acids, α-acids, and β-acids in beer is presented. This is the first time a complete separation of all six isomers of iso-α-acids has been described. It is done by using an isocratic elution system in beer.