Evaluation of α- and β-Bitter Acids Content in Harvest of Czech Hops in 2017

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F18%3AN0000001" target="_blank" >RIV/60193697:_____/18:N0000001 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.kvasnyprumysl.cz/pdfs/kpr/2018/03/04.pdf" target="_blank" >https://www.kvasnyprumysl.cz/pdfs/kpr/2018/03/04.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.18832/kp201815" target="_blank" >10.18832/kp201815</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of α- and β-Bitter Acids Content in Harvest of Czech Hops in 2017

Popis výsledku v původním jazyce

This article presents the results of the harvest forecast of the α- and β-acid content of the Czech hop varieties in the 2017 harvest (194 samples in total). Hops were analyzed using EBC 7.7 (HPLC) method. The results are discussed in relation to the long-term averages, structure of bitter acids analogs and stability of varietal character. The α-acid content of the Saaz variety (2.81% in dry matter) was 20% rel. lower than the 25-year average, the content of α-acids in the varieties with a later maturity date, Sládek, Premiant, Agnus, Kazbek and Saaz Late, was only slightly lower or comparable to the multi-annual averages. The ratio of α- and β-acids, the relative content of cohumulone and the relative content of colupulone were consistent with long-term averages for the tested varieties. The harvest forecast gives a timely information on the α-acids content of the harvest, the results were in good agreement with the results of the whole harvested hops.

Název v anglickém jazyce

Evaluation of α- and β-Bitter Acids Content in Harvest of Czech Hops in 2017

Popis výsledku anglicky

This article presents the results of the harvest forecast of the α- and β-acid content of the Czech hop varieties in the 2017 harvest (194 samples in total). Hops were analyzed using EBC 7.7 (HPLC) method. The results are discussed in relation to the long-term averages, structure of bitter acids analogs and stability of varietal character. The α-acid content of the Saaz variety (2.81% in dry matter) was 20% rel. lower than the 25-year average, the content of α-acids in the varieties with a later maturity date, Sládek, Premiant, Agnus, Kazbek and Saaz Late, was only slightly lower or comparable to the multi-annual averages. The ratio of α- and β-acids, the relative content of cohumulone and the relative content of colupulone were consistent with long-term averages for the tested varieties. The harvest forecast gives a timely information on the α-acids content of the harvest, the results were in good agreement with the results of the whole harvested hops.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Kvasný Průmysl

ISSN

0023-5830

e-ISSN

2570-8619

Svazek periodika

64

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

122-130

Kód UT WoS článku

000436575400004

EID výsledku v databázi Scopus

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