Results 51 to 60 of about 34,090 (203)

VOLATILE ORGANOSULPHUR COMPOUNDS IN HOPS AND HOP OILS: A REVIEW [PDF]

open access: yesJournal of the Institute of Brewing, 1981
The nature of volatile organosulphur compounds occurring in hops and hop oils is reviewed. The effect of such compounds on beer flavour and their practical importance to the brewer are also discussed.
openaire   +1 more source

Comparison of quality parameters of Czech and foreign hop varieties

open access: yesPlant, Soil and Environment, 2003
Market varieties of hops are classified to several groups according to their use in the brewing industry - aroma, bitter (dual-purpose), high-alpha ones. Saaz and other genetically related varieties form a separate group among the aromatic hops.
K. Krofta
doaj   +1 more source

Spartan Daily, May 4, 1945 [PDF]

open access: yes, 1945
Volume 33, Issue 128https://scholarworks.sjsu.edu/spartandaily/3608/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +1 more source

THE AROMA OF HOPS. II. ON THE COMPOSITION OF HOP OIL [PDF]

open access: yesJournal of the Institute of Brewing, 1968
Hop oil was investigated by gas chromatography coupled to a mass spectrometer. Almost all substances were obtained by preparative gas chromatography in amounts sufficient for N.M.R. spectral identification. Hop oil was separated into hydrocarbon- acid- alcohol- and ketone-containing fractions using adsorption chromatography, saponification, alkaline ...
H. Lammens, M. Verzele
openaire   +1 more source

Organic Hop Variety Trial: Results from Year Three [PDF]

open access: yes, 2014
Great interest has been kindled in producing hops in the Northeast. While hops were historically grown in the Northeast, they have not been commercially produced in this region for over a hundred years.
Burke, Conner   +5 more
core   +1 more source

EVALUATION OF HOPS VII. COMPOSITION OF THE ESSENTIAL OIL OF HOPS [PDF]

open access: yesJournal of the Institute of Brewing, 1957
Analysis of the essential oils from a large number of hop samples, using a combination of gas-liquid partition chromatography and adsorption chromatography, has shown that the oil content is affected by numerous factors including the variety of hop, the conditions during its growth and the treatment received by the cones after picking. Both over-drying
G. A. Howard, C. A. Slater
openaire   +1 more source

The Comparison and Brewing Value of Saaz Hop Pedigree

open access: yesBeverages
The well-known hop variety, Saaz, which gives the Pilsner lager beer its characteristic hop aroma, may be threatened by climate change in the future. Therefore, new Saaz-related hop varieties, including Saaz Late, Saaz Brilliant, Saaz Comfort, and Saaz ...
Jana Olšovská   +4 more
doaj   +1 more source

Determination of hop oils using the solid-phase microextraction method (SPME).

open access: yesKvasný průmysl, 2000
The method of solid-phase microextraction in the "headspace" execution (HS-SPME) was used for the insulation of hop oils from the hop cones of female plants and from the inflorescences of male plants.
K. KROFTA, J. ČEPIČKA
doaj   +1 more source

AVALIAÇÃO QUANTITATIVA DE ÁCIDOS AMARGOS, XANTHOHUMOL E ÓLEOS ESSENCIAIS PRESENTES EM FLORES DE DIFERENTES CULTIVARES DE Humulus lupulus L. PRODUZIDAS NA REGIÃO NORDESTE DO BRASIL

open access: yesQuímica Nova
Hop flowers contain chemical substances that are used to confer sensory properties to beer. Hop flower products have very high commercial value, but national production represents less than 2% of domestic consumption. In this work, flowers from different
Samuel P. D. Marques   +9 more
doaj   +1 more source

Evaluation of original historical clones of hops (Humulus lupulus L.)

open access: yesKvasný průmysl, 2020
The aim of this study was to compare yield and technological parameters of Czech historical hop clones, which were grown in our current climatic conditions. The highest yields from the selected original hop clones were found in “Úštěcký smetaňák” (1.93 t/
Vladimír Nesvadba   +3 more
doaj   +1 more source

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