Results 1 to 10 of about 34,195 (204)
Comparison of Major Compounds in Essential Oils Steam Distilled from Fresh Plant Material of South African Hop Varieties [PDF]
LifeApart from the importance of bittering acids in the brewing sector, hops also produce terpene-rich essential oils, recognised for their therapeutic benefits. Agri-processing practices of this crop in South Africa produce tonnes of discarded (waste) plant
Olga de Smidt, Idah Tichaidza Manduna
exaly +4 more sources
VOLATILE ORGANOSULPHUR COMPOUNDS IN HOPS AND HOP OILS: A REVIEW [PDF]
Journal 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.
T L Peppard
exaly +2 more sources
Essential oils in Czech hop varieties
Kvasný průmysl, 2021 Czech hop varieties were evaluated as part of maintenance breeding. The evaluation was performed in a single location between 2011 and 2020. The average weight of hop essential oils (HEOs) is 0.43 to 2.28% w/w.
Vladimír Nesvadba +4 more
doaj +3 more sources
Effect of drying temperature on the content and composition of hop oils
Plant, Soil and Environment, 2018 In terms of content, the paper is aimed at analysing and comparing the quality of fresh green hops and hops dried at two drying temperatures - 55°C (in the traditional manner) and 40°C (using the so-called gentle drying), regarding the maximum ...
Adolf RYBKA +4 more
exaly +3 more sources
New Insights into the Synergistic Bioactivities of Zingiber officinale (Rosc.) and Humulus lupulus (L.) Essential Oils: Targeting Tyrosinase Inhibition and Antioxidant Mechanisms [PDF]
MoleculesEssential oils (EOs) constitute intricate mixtures of volatile phytochemicals that have garnered significant attention due to their multifaceted biological effects.
Hubert Sytykiewicz +2 more
doaj +2 more sources
Separations, 2023 Seven commercial hop (Humulus lupulus L.) oils originating from a selection of North American hop varieties (Amarillo, Azacca, Cascade, Centennial, Chinook, Saaz, and Ahhhroma) and six homemade hop oils hydrodistilled from the same commercial hop pellets
Ágnes M. Móricz +8 more
doaj +1 more source
Effect of drying temperature in hop dryer on hop quality
Research in Agricultural Engineering, 2021 One of the qualitative characteristics of both green and dried hops is the content of hop essential oils which are contained in a quantity of 0.5 to 3.5%, depending on the hop variety.
Adolf Rybka +2 more
doaj +1 more source
Czech Journal of Genetics and Plant Breeding, 2022 Twenty hop genotypes were selected for the evaluation of resistance to primary and secondary Pseudoperonospora humuli infection and of alpha acid and hop oil content in the hops.
Markéta Trefilová +2 more
doaj +1 more source
Pilot brewery tests of Czech flavour hop varieties registered in 2022
Kvasný průmysl, 2022 Seven new Czech “flavour hop” varieties were tested in pilot brewing trials (50 l), in which samples of Ale-style beer were prepared using dry hopping.
Alexandr Mikyška +5 more
doaj +1 more source
Effects of Dry-Hopping on Beer Chemistry and Sensory Properties—A Review
Molecules, 2023 Dry-hopping is the addition of hops to the wort on the cold side of the brewing process. Unlike standard hop additions, its main purpose is not to produce a characteristic bitterness but to extract as much of the hop essential oils as possible, which are
Krystian Klimczak +2 more
doaj +1 more source