Results 51 to 60 of about 34,090 (203)
VOLATILE ORGANOSULPHUR COMPOUNDS IN HOPS AND HOP OILS: A REVIEW [PDF]
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.
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Comparison of quality parameters of Czech and foreign hop varieties
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
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Spartan Daily, May 4, 1945 [PDF]
Volume 33, Issue 128https://scholarworks.sjsu.edu/spartandaily/3608/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
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THE AROMA OF HOPS. II. ON THE COMPOSITION OF HOP OIL [PDF]
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
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Organic Hop Variety Trial: Results from Year Three [PDF]
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
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EVALUATION OF HOPS VII. COMPOSITION OF THE ESSENTIAL OIL OF HOPS [PDF]
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
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The Comparison and Brewing Value of Saaz Hop Pedigree
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
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Determination of hop oils using the solid-phase microextraction method (SPME).
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
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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
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Evaluation of original historical clones of hops (Humulus lupulus L.)
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
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