| Abstract: | Microemulsion electrokinetic chromatography has been applied to the analysis of hop acids in extracts of different hop cultivars. With this new analytical method, the 6 main hop bitter acids are completely separated within 10 minutes. Quantitative analyses of extracts from Saaz, Nugget and Wye Target cultivars have been compared to those obtained with reversed-phase high-performance liquid chromatography. The cohumulone and colupulone ratios are in good agreement. Microemulsion electrokinetic chromatography however is much faster and provides, in addition, data for the adhumulone and adlupulone ratios. |
