Summary evaluation of Czech hops harvested in 2015. Part I: Contents of α- and β-bitter acids.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F16%3AN0000062" target="_blank" >RIV/60193697:_____/16:N0000062 - isvavai.cz</a>

Result on the web

<a href="https://kvasnyprumysl.cz/artkey/kpr-201604-0001_hodnoceni_sklizne_ceskych_chmelu_v_roce_2015_cast_i_obsah_alpha_-_a_beta_-horkych_kyselin.php" target="_blank" >https://kvasnyprumysl.cz/artkey/kpr-201604-0001_hodnoceni_sklizne_ceskych_chmelu_v_roce_2015_cast_i_obsah_alpha_-_a_beta_-horkych_kyselin.php</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.18832/kp2016016" target="_blank" >10.18832/kp2016016</a>

Result language

angličtina

Original language name

Summary evaluation of Czech hops harvested in 2015. Part I: Contents of α- and β-bitter acids.

Original language description

The contents of α- and β- bitter acids from hops harvested in the Czech Republic in 2015 have been evaluated. Samples originated from all growing areas – Žatec, Úštěk and Tršice (77.4 %, 10.8% and 11.9% of the hop garden areas in the Czech Republic). The tested varieties, Saaz (ŽPČ), Sládek, Premiant, Agnus, Kazbek and Saaz Late were cultivated on 87.4%, 5.8%, 3.9%, 0.8%, 0.4 and 0.7 of the harvest areas respectively. Samples were analyzed in accordance with the Analytica EBC, method 7.7 (HPLC), all results are given in weight % in dry matter. The average value of α-bitter acids in the Saaz hops (2,15%) was 0.81% (27.4% rel.) and 1.41% (39.6% rel.) lower when compared to the year 2014 and to the average of the 22 years respectively. The content of β-bitter acids (3.24%) was 1.10 % (25.3% rel.) lower when compared to the year 2014 and 1.41 % (30.3 rel.) lower to the long-term average. The content of α-bitter acids in the Sládek hops (5.09%) was 0.71% (12.2% rel.) and 1.50 % (22.8% rel.) lower when compared to the harvest in 2014 and to the average of the 12 years respectively. The content of α-bitter acids in the Premiant hops (6.59) was in 0.63% (8.7% rel.) and 2.36% (26.4% rel.) lower when compared to the harvest in 2014 and to the average of the last 12 years. The content of α-bitter acids in the Agnus hops (10.5) was higher in 0.81% (8.4% rel.) and 0.80% (7.1% rel.) lower when compared to the harvest in 2014 and to average of last seven years. The content of α-bitter acids in the Kazbek hops was 4.59% and the content in Saaz late hops was 2.17%.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Kvasný průmysl

ISSN

0023-5830

e-ISSN

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Volume of the periodical

62

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

9

Pages from-to

118–126

UT code for WoS article

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EID of the result in the Scopus database

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