Results 31 to 40 of about 34,090 (203)
The inflorescences of Humulus lupulus L. are the most valuable ingredient in the brewing industry. Only female cones are used as their bitterness and aroma, much associated with beer, are granted by the production of resins and essential oils ...
Lorenzo Lamberti +5 more
doaj +1 more source
Preliminary separation of hop oil (from Humulus lupulus L. var. Bullion) by physical and chemical methods, followed by programmed gas-chromatography analysis of the individual fractions, revealed the presence of approximately 200 components. The hydrocarbon fraction (70% of the total oil) contained myrcene (30%), caryophyllene (20%), and humulene (40%),
openaire +1 more source
ESSENTIAL OILS OF TASMANIAN GROWN HOPS* [PDF]
The hop varieties Northern Brewer, Brewers' Gold, Bullion, Cluster, Pride of Ringwood and the new variety ‘B23’ were grown in Tasmania and their essential oils analysed, primarily by combined gas chromatography/mass spectrometry. The results for those varieties previously studied were similar to the published reports, while Pride of Ringwood and B23 ...
N. W. Davies, R. C. Menary
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Potential dietary feed additives with antibacterial effects and their impact on performance of weaned piglets : a meta-analysis [PDF]
This meta-analysis evaluated the use of potential dietary feed additives (pDFA) with antibacterial effects and their impact on the perfomance of weaned piglets.
Bruggeman, G +8 more
core +1 more source
Hop resins and Czech hops essential oils composition. [PDF]
Metodou vysokoucinne kapalinove chromatografie, plynove chromatografie a važkových stanoveni byly zkoumany u vsech povolených odrůd ceskeho chmele kvantitativni a kvalitativni analyticke znaky (poměr a-hořkých kyselin / b-frakce, relativni podily kohumulonu a kolupulonu u jednotlivých hořkých kyselin, celkový obsah chmelove silice a jeji složen, ktere ...
openaire +1 more source
The Czech hop hybrid variety - Part I.
The Vital hop variety was first registered in 2008. Vital is genetically most related to Agnus, another Czech variety. The yield potential is 2.0 to 2.5 t/ha. With respect to its content of α-bitter acids of 10 to 15 % it belongs to the bitter cultivars.
Karel KROFTA +5 more
doaj +1 more source
Saaz Special – another hop variety recommended for Czech beer
The specification of varietal profiles of secondary metabolites of hops in beer is rather important for hop growing and beer brewing. Chemical and sensory profiles of beers hopped with the varieties of Saaz Special and the traditional Saaz semiearly red ...
Alexandr Mikyška +5 more
doaj +1 more source
RESIN AND OIL RELATIONSHIPS IN HOPS [PDF]
Two recently published papers which report a relationship between certain fractions of hop resin and hop oil are discussed. It is pointed out that the choice of samples is inadequate to justify the conclusions drawn concerning the nature of this relationship.
R. A. Neve, E. W. Weston
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STABILITY OF ESSENTIAL OIL OF HOPS [PDF]
The stability of hop essential oil in beers, in hops and in aqueous emulsions has been investigated. Hop character of beers treated with hop oil emulsion has stability on pasteurization and storage similar to that of dry hopped beers. When bottled with high levels of headspace air, beers lose hop character.
J. A. Pickett +2 more
openaire +1 more source
Headspace solid-phase microextraction combined with mass spectrometry as a powerful analytical tool for profiling the terpenoid metabolomic pattern of hop-essential oil derived from Saaz variety [PDF]
Hop(HumuluslupulusL.,Cannabaceaefamily)isprizedforitsessentialoilcontents,usedin beer production and, more recently, in biological and pharmacological applications. In this work,a methodinvolvingheadspace solid-phase microextractionand gas chromatography–
Câmara, José +3 more
core +1 more source

