Old but still good - Comparison of malting and brewing characteristics of current and historical malting barley varieties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F22%3AN0000011" target="_blank" >RIV/60193697:_____/22:N0000011 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.kvasnyprumysl.eu/index.php/kp/issue/view/57" target="_blank" >https://www.kvasnyprumysl.eu/index.php/kp/issue/view/57</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.18832/kp2022.68.663" target="_blank" >10.18832/kp2022.68.663</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Old but still good - Comparison of malting and brewing characteristics of current and historical malting barley varieties

Popis výsledku v původním jazyce

Historical Czech malting barley varieties Chlumecký, Stupický staročeský, Opavský Kneifel, and Diamant were tested in pilot malting and brewing tests (50 L) of 12% pale lager and compared with five Czech barley varieties recommended for the production of the beer with the protected geographical indication 'České pivo'. The grain yield of the historical varieties (6.00 - 7.83 t/ha) was lower compared to the current varieties (8.23 - 9.39 t/ha). The malts from the historical varieties had high nitrogen content (12.45 - 13.89%), and low extract (75.2 - 78.6%, proteolytic (Kolbach index 37.4 - 40.9%) and cytolytic modification (friability 46.2 - 57.7%) was also low. Apart from lower extract yield and lower beer filtration rate, the experimental malts from the historical varieties were well processable in the pilot brewery. The sensory quality of the beers was very good (overall impression 3.3 - 3.8 points), fully comparable to beers made from malts from current barley varieties (3.4 - 3.9 points). Cluster analysis clearly differentiated the sensory profile of beers of historical and current barley varieties. The historical malting barley varieties under study may mainly find their use in the production of regional microbreweries.

Název v anglickém jazyce

Old but still good - Comparison of malting and brewing characteristics of current and historical malting barley varieties

Popis výsledku anglicky

Historical Czech malting barley varieties Chlumecký, Stupický staročeský, Opavský Kneifel, and Diamant were tested in pilot malting and brewing tests (50 L) of 12% pale lager and compared with five Czech barley varieties recommended for the production of the beer with the protected geographical indication 'České pivo'. The grain yield of the historical varieties (6.00 - 7.83 t/ha) was lower compared to the current varieties (8.23 - 9.39 t/ha). The malts from the historical varieties had high nitrogen content (12.45 - 13.89%), and low extract (75.2 - 78.6%, proteolytic (Kolbach index 37.4 - 40.9%) and cytolytic modification (friability 46.2 - 57.7%) was also low. Apart from lower extract yield and lower beer filtration rate, the experimental malts from the historical varieties were well processable in the pilot brewery. The sensory quality of the beers was very good (overall impression 3.3 - 3.8 points), fully comparable to beers made from malts from current barley varieties (3.4 - 3.9 points). Cluster analysis clearly differentiated the sensory profile of beers of historical and current barley varieties. The historical malting barley varieties under study may mainly find their use in the production of regional microbreweries.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

21101 - Food and beverages

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

KVASNÝ PRŮMYSL

ISSN

2570-8619

e-ISSN

2570-8619

Svazek periodika

68

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

663-673

Kód UT WoS článku

000904608600001

EID výsledku v databázi Scopus

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