An investigation of the relationships between hopping rate, time of boil, and individual alpha-acid utilization

AJ Irwin, CR Murray, DJ Thompson - Journal of the American …, 1985 - Taylor & Francis
… not incur serious losses with any foreseeable hop price … serious financial losses of iso-aacids
that would occur if hops were … in this study the percent loss of individual iso-a-acids during …

A review of cyclic and oxidative bitter derivatives of alpha, iso-alpha and beta-hop acids

J Hao, RA Speers, H Fan, Y Deng… - Journal of the American …, 2020 - Taylor & Francis
… With the development of hop research over the last century, hop chemistry, utilization and
varietal development have evolved into distinct and separate sub-fields of the discipline. [ …

[HTML][HTML] The Stability of Hop (Humulus lupulus L.) Resins during Long-Period Storage

K Rutnik, M Ocvirk, IJ Košir - Plants, 2023 - mdpi.com
study evaluated the effects of hop storage conditions, variety and form on the hop alpha- and
beta- acid … This was the first study mentioning that for beta-acid and HSI values, the pellet …

[HTML][HTML] Iso-alpha acids from hops (Humulus lupulus) inhibit hepatic steatosis, inflammation, and fibrosis

A Mahli, A Koch, K Fresse, T Schiergens… - Laboratory …, 2018 - Elsevier
… this study, we used a defined extract of isomerized alpha acids … Previous studies have shown
that isomerized alpha acids … in the experiments performed in this study, the composition of …

Hop α-acids isomerisation and utilisation: an experimental review

B Jaskula-Goiris, G Aerts, L De Cooman - Cerevisia, 2010 - Elsevier
… The second part “Fundamental aspects of hop and beer bitter acids analysis and alpha acids
isomerisation” comprises a more fundamental study on α-acids isomerisation kinetics and …

Isomerization and Degradation Kinetics of Hop (Humulus lupulus) Acids in a Model Wort-Boiling System

MG Malowicki, TH Shellhammer - Journal of agricultural and food …, 2005 - ACS Publications
… This research seeks to break down the utilization equation into its various subcomponent …
that the differences between lost alpha acids and produced iso-alpha acids were equal to the …

Determination of bitter compounds in hops–effect of crop year and hops age

K Krofta, A Mikyška, M Jurková, L Moravcová… - Kvasny …, 2017 - kvasnyprumysl.eu
… 63(5): 241–247 Our study is focused on mutual comparison of four methods of determination
of alpha acids in hops (EBC 7.4, EBC 7.5, ČSN and EBC 7.7) and their application in …

Hopping technology in relation to α-acids isomerization yield, final utilization, and stability of beer bitterness

B Jaskula, K Goiris, F Van Opstaele… - Journal of the …, 2009 - Taylor & Francis
… in the literature on hop α-acids isomerization and utilization, the present study was … α-acids
using selected hop products (T90 pellets, nonisomerized hop extract, and preisomerized hop

Identification and quantification of the oxidation products derived from α-acids and β-acids during storage of hops (Humulus lupulus L.)

Y Taniguchi, Y Matsukura, H Ozaki… - Journal of agricultural …, 2013 - ACS Publications
… α-Acids and β-acids, two main components of hop resin, are known to be … during hop
storage, although the oxidation products in stored hops have not been fully identified. In this study, …

Hop storage index

GB Nickerson, ST Likens - Journal of the American Society of …, 1979 - Taylor & Francis
… hard resin content in a study of the effect of sulfuring on deterioration rates (12). From their
data we plotted percent of hard resins against percent of aacids lost, as determined by HSI …