Kvasny Prum. 1995; 41(11): 337-345 | DOI: 10.18832/kp1995021

Hop resins and Czech hops essential oils composition.Peer-reviewed article

F. KROUPA

By using HPLC - method, gas chromatography and balance determination, Czech hops allowed varieties underwent assessment with respect to their quantitave and qualitative analytical character (eg. a-acids / b-fraction ratio, cohumulon and colupulon relative fraction found out in individual bitter acids, essential oil total content and its composition) which are typical for given variety or their groups. It was confirmed that by clone selection obtained varieties (eg. vegetative propagated progenies of one plant or their groups) cannot be by this way in practice mutually distinguished and can be characterized by average values valid for all varieties from the Saaz semi-early red wine hop group. On the contrary, varieties obtained by generative method (hybridization) can be distinguished very simply. Their biochemical characteristics is enough different that it can be ease identified.
(In Czech, English summary only)

Keywords: hops, bitter acids, variety, HLPC, gas chromatography, hop resins, hop oils

Published: November 1, 1995