L. Decooman et al., QUANTITATIVE-ANALYSIS OF HOP ACIDS, ESSENTIAL OILS AND FLAVONOIDS AS A CLUE TO THE IDENTIFICATION OF HOP VARIETIES, Phytochemical analysis, 9(3), 1998, pp. 145-150
The hop acids, the essential oils and the flavonoids of the hop (Humul
us lupulus L.) varieties Saaz, Nugget and Wye Target have been studied
for cultivar identification. Optimised reverse phase-high performance
liquid chromatographic separations were carried out for the analysis
of the hop acids and the flavonoids, whereas capillary gas chromatogra
phy was applied in order to characterize the essential oils. Appropria
te handling of the quantitative chromatographic data by principal comp
onent analysis provided a clue to differentiate hop varieties. (C) 199
8 John Wiley & Sons, Ltd.