R. Szucs et al., SEPARATION AND QUANTIFICATION OF ALL MAIN HOP ACIDS IN DIFFERENT HOP CULTIVARS BY MICROEMULSION ELECTROKINETIC CHROMATOGRAPHY, Journal of the Institute of Brewing, 100(4), 1994, pp. 293-296
Microemulsion electrokinetic chromatography has been applied to the an
alysis of hop acids in extracts of different hop cultivars. With this
new analytical method, the 6 main hop bitter acids are completely sepa
rated. 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 cohumu
lons and colupulone ratios are in good agreement. Microemulsion electr
okinetic chromatography however is much faster and provides, in additi
on, data for the adhumulone and adlupulone ratios.