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Akademický článek

Effect of drying temperature in hop dryer on hop quality

Autor: Adolf Rybka, Petr Heřmánek, Ivo Honzík

Publikováno v: Research in Agricultural Engineering, Vol 67, Iss 1, Pp 1-7 (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. These essential oils are heat labile substances because the tempe

Externí odkaz: https://doaj.org/article/2f322918bed741399b8c373c45eeb034

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Akademický článek

Effect of drying temperature on the content and composition of hop oils

Autor: Adolf RYBKA, Karel KROFTA, Petr HEŘMÁNEK, Ivo HONZÍK, Jaroslav POKORNÝ

Publikováno v: Plant, Soil and Environment, Vol 64, Iss 10, Pp 512-516 (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 pres

Externí odkaz: https://doaj.org/article/ee149c103fe34f9690de20c893fa6843

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About Hop Cones for a Golden Brew

Autor: Michal Jurášek, Adolf Rybka, Lubomír Opletal, Pavel Drašar

Publikováno v: Chemické listy. 116:668-671

As a component of drinks, food, cosmetics, and spice, hops yields a plethora of biologically active compounds. This plant, which was valued by gods and kings through the history, may serve as a basis for pharmaceutical exploitation: not only as a hea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b3733af24c506046e38e0114a85480d1
https://doi.org/10.54779/chl20220668

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Akademický článek

Parameters of the drying medium and dried hops in belt dryer

Autor: Adolf Rybka, Petr Heřmánek, Ivo Honzík, Karel Krofta

Publikováno v: Research in Agricultural Engineering, Vol 63, Iss Special Issue, Pp S24-S32 (2017)

An important factor in hop growing is the process of drying. For this purpose belt dryers with follow-up conditioning are the most widespread but they are not ideal. In this respect, an analysis of the drying process was carried out in the belt dryer

Externí odkaz: https://doaj.org/article/be151a4d8ccd4295846b6438624bf6a6

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