Evaluation of czech hops harvested in 2014 – 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_____%2F15%3A%230001093" target="_blank" >RIV/60193697:_____/15:#0001093 - isvavai.cz</a>

Result on the web

<a href="http://www.kvasnyprumysl.cz/en/journal/2015/4/" target="_blank" >http://www.kvasnyprumysl.cz/en/journal/2015/4/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Evaluation of czech hops harvested in 2014 – 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 2014 have been evaluated. Samples originated from all growing areas – Žatec, Úštěk and Tršice (77.3%, 10.6% and 12.1% of the hop garden areas in the Czech Republic). The main varieties, Saaz (Žatecký poloraný červeňák, ŽPČ), Sládek, Premiant and Agnus were cultivated on 87.2%, 6.0%, 4.2% and 0.9% 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 was 0.38% (9.2% rel.) and 0.66% (18,3% rel.) lower when compared to the year 2013 and to the average of the 21 years respectively. The content of β-bitter acids was 0.76% (16.0% rel.) higher when compared to the year 2013 and 0.37% (7.9% rel.) lower to the long-term average. The content of α-bitter acids in the Sládek hops was 0.37% (6.0% rel.) and 0.95% (14.0% rel.) lower when compared to the harvest in 2013 and to the average of the 11 years respectively. The content of α-bitter acids in the Premiant hops was in 1.13% (13.5% rel.) and 1.97% (21.4% rel.) lower when compared to the harvest in 2013 and to the average of the last 11 years. The content of α-bitter acids in the Agnus hops was 1.47% (13.2% rel.) and 1.74% (15.2% rel.) lower when compared to the harvest in 2013 and to average of last six years.

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

2015

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

61

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

8

Pages from-to

106-113

UT code for WoS article

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EID of the result in the Scopus database

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