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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   +3 more sources

Essential oils in Czech hop varieties [PDF]

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   +4 more sources

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.
T L Peppard
openaire   +3 more sources

THE ESSENTIAL OIL OF HOPS A REVIEW [PDF]

open access: yesJournal of the Institute of Brewing, 1981
The composition of essential oil of hops is reviewed and the nature of hop oil components which survive into wort and beer is discussed. Methods which are available to the brewer for imparting hop character to beer are critically evaluated.
F. R. Sharpe, D. R. J. Laws
openaire   +3 more sources

Analysis of the Chemical Profile of the Essential Oil from Leaves and Cones of Four Varieties of Humulus lupulus Cultivated in a Subtropical Climate Under Edaphoclimatic Conditions [PDF]

open access: yesMolecules
Cultivating Humulus lupulus L. under subtropical conditions is challenging because hops are adapted to temperate climates, where environmental factors influence plant development and secondary metabolism.
Gabriela Catuzo Canônico Silva   +14 more
doaj   +2 more sources

STABILITY OF ESSENTIAL OIL OF HOPS [PDF]

open access: yesJournal of the Institute of Brewing, 1976
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   +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

Humulus lupulus L. in Animal Nutrition: Phytochemical Profile, Bioactive Properties, and Applications as a Functional Feed Additive—A Comprehensive Review [PDF]

open access: yesPlants
Hops (Humulus lupulus L.) are a phytochemical resource rich in bitter acids, prenylated flavonoids, and essential oils with antimicrobial, antifungal, antioxidant, and anti-inflammatory activities relevant to animal production.
Claudio Zepeda   +4 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

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

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