Results 1 to 10 of about 34,090 (203)

Comparison of Major Compounds in Essential Oils Steam Distilled from Fresh Plant Material of South African Hop Varieties [PDF]

open access: yesLife
Apart 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   +3 more
doaj   +2 more sources

Essential oils in Czech hop varieties

open access: yesKvasný 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

New Insights into the Synergistic Bioactivities of Zingiber officinale (Rosc.) and Humulus lupulus (L.) Essential Oils: Targeting Tyrosinase Inhibition and Antioxidant Mechanisms [PDF]

open access: yesMolecules
Essential 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

A Comparison of Quantitative Composition and Bioactivity of Oils Derived from Seven North American Varieties of Hops (Humulus lupulus L.)

open access: yesSeparations, 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

open access: yesResearch 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

Evaluation of resistance to Pseudoperonospora humuli and of the content of alpha acids and hop oils in hops of selected genetic resources of hop Humulus lupulus L.

open access: yesCzech 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

open access: yesKvasný 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

open access: yesMolecules, 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

Evaluation of fine aroma Saaz Shine hop variety

open access: yesKvasný průmysl, 2022
The Saaz Shine variety was registered in 2019. It was tested in two areas, Chrášťany (no irrigation) and Stekník (with irrigation), between 2017 and 2021. An average hop yield in Stekník is 2.62 t/ha and in Chrášťany it is 2.54 t/ha.
Vladimír Nesvadba   +2 more
doaj   +1 more source

Dataset for Hop varieties classification

open access: yesData in Brief, 2021
: Humulus lupulus L., also known as hops, is a vine whose flowers are a major component in brewing. It delivers flavor, bitterness, and aroma to beer and also aids in foam stabilization. Furthermore, it plays an important role in beer conservation due to
Pedro Castro   +2 more
doaj   +1 more source

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