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Kazbek - The First Czech Aroma

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F19%3AN0000008" target="_blank" >RIV/60193697:_____/19:N0000008 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.kvasnyprumysl.eu/index.php/kp/article/view/131" target="_blank" >http://www.kvasnyprumysl.eu/index.php/kp/article/view/131</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.18832/kp2019.65.72" target="_blank" >10.18832/kp2019.65.72</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Kazbek - The First Czech Aroma

  • Original language description

    The world market of craft beer, especially dry hopped beers, has been constantly growing in the last few years. That is why new varieties of hops are still being bred. This article gives the genetic, agronomic, chemotaxonomic and brewing characteristics of Kazbek, the first "flavor hops" variety bred in the Czech Republic. Kazbek genetically belongs to a group of bitter American hops resulting from Brewers Gold variety, but the alpha acids content is relatively low, 5.0-8.0% by weight. The content of a homologous series of geranyl esters (acetate-propionate-isobutyrate) in an amount 2-4% of total essential oils (1-1.5 g/100g) is considered to be the originator of the specific, mainly citrus-like aroma of Kazbek. Moreover, the essential oil fraction contains about 25 sulfurous substances, predominantly thioesters. In the pilot scale brewing tests, the quality of Kazbek hops was proved both in kettle and dry hopping of Pilsner lagers. The overall sensory impression of kettle hopped lagers was comparable to Saaz hops, the differences were in the character of hop-derived flavor and bitterness. The best results of dry hopped beers were achieved for a 2.5 g/l hop dose and a contact time of 3 days.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    40401 - Agricultural biotechnology and food biotechnology

Result continuities

  • Project

    <a href="/en/project/LO1312" target="_blank" >LO1312: Sensory Research Centre in Prague and Brewhouse for research and development - sustainability and development</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2019

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    KVASNÝ PRŮMYSL

  • ISSN

    2570-8619

  • e-ISSN

    2570-8619

  • Volume of the periodical

    65

  • Issue of the periodical within the volume

    2

  • Country of publishing house

    CZ - CZECH REPUBLIC

  • Number of pages

    11

  • Pages from-to

    72-83

  • UT code for WoS article

    000467129700004

  • EID of the result in the Scopus database