Effect of drying temperature in hop dryer on hop quality
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41310%2F21%3A85326" target="_blank" >RIV/60460709:41310/21:85326 - isvavai.cz</a>
Result on the web
<a href="http://www.cazv.cz" target="_blank" >http://www.cazv.cz</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17221/61/2020-RAE" target="_blank" >10.17221/61/2020-RAE</a>
Alternative languages
Result language
angličtina
Original language name
Effect of drying temperature in hop dryer on hop quality
Original language description
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 temperature has an influence on their content. Hop cones, dried either in belt or chamber dryers, are exposed to a drying medium temperature of 55 to 60 degree C for the entire duration of drying, i.e. for 6-8 hours. Under current drying conditions there is a loss of approx. 15 to 25% of the total content of essential oils present in hops before drying. In case of special aroma hop varieties, such losses lead to a decline in the product quality. Comparative measurements have been carried out with a laboratory equipment to find out whether more aromatic essential oils are retained in hop cones at a drying temperature of 40 degree C compared to a drying temperature of 60 degree C. The measurement carried out with the most common variety of Saaz hop concluded tha
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
40101 - Agriculture
Result continuities
Project
<a href="/en/project/QJ1510004" target="_blank" >QJ1510004: The gentle method of conservation thermally labile substances of hops</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Research in Agricultural Engineering (Zemědělská technika)
ISSN
1212-9151
e-ISSN
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Volume of the periodical
67
Issue of the periodical within the volume
1
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
7
Pages from-to
1-7
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85105705639