Effect of Czech Hop Varieties on Aroma of Dry-Hopped Lager Beer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F22%3A43924746" target="_blank" >RIV/60461373:22330/22:43924746 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11410/22:10457641

Výsledek na webu

<a href="https://www.mdpi.com/2304-8158/11/16/2520" target="_blank" >https://www.mdpi.com/2304-8158/11/16/2520</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/foods11162520" target="_blank" >10.3390/foods11162520</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Czech Hop Varieties on Aroma of Dry-Hopped Lager Beer

Popis výsledku v původním jazyce

The hoppy aroma in beer is characterized by an overall pleasant profile. The impacts of five Czech hop cultivars, Rubin, Saaz, Vital, Harmonie, and Kazbek, were tested on the hop aroma of the resulting beers, compared with a control beer sample, which was hopped with a commercial hop extract during wort boiling. GC-MS analysis was used for the identification and quantification of aroma-active compounds in the hops and beer. Dry hopping was successful in terms of improving the hoppy aroma in beer. Odorants such as β-myrcene, linalool, geraniol, β-citronellol, humulene epoxide I, and 2-methylbutyl-2-methylpropanoate were found at higher concentrations than the control in all dry-hopped beers. To quantify the success of dry hopping, the transfer rates of hop odorants were calculated. Those of linalool, geraniol and humulene epoxide I were adequate, whereas the transfer rates of polar compounds, e.g., β-myrcene, were relatively low, mostly due to their polarity. Changes in hop oil constituents were clearly notable, with the generation of β-citronellol, the release of other terpene alcohols from their glycosides or oxidation of α-humulene. Yeast metabolism also played an important role in these changes. © 2022 by the authors.

Název v anglickém jazyce

Effect of Czech Hop Varieties on Aroma of Dry-Hopped Lager Beer

Popis výsledku anglicky

The hoppy aroma in beer is characterized by an overall pleasant profile. The impacts of five Czech hop cultivars, Rubin, Saaz, Vital, Harmonie, and Kazbek, were tested on the hop aroma of the resulting beers, compared with a control beer sample, which was hopped with a commercial hop extract during wort boiling. GC-MS analysis was used for the identification and quantification of aroma-active compounds in the hops and beer. Dry hopping was successful in terms of improving the hoppy aroma in beer. Odorants such as β-myrcene, linalool, geraniol, β-citronellol, humulene epoxide I, and 2-methylbutyl-2-methylpropanoate were found at higher concentrations than the control in all dry-hopped beers. To quantify the success of dry hopping, the transfer rates of hop odorants were calculated. Those of linalool, geraniol and humulene epoxide I were adequate, whereas the transfer rates of polar compounds, e.g., β-myrcene, were relatively low, mostly due to their polarity. Changes in hop oil constituents were clearly notable, with the generation of β-citronellol, the release of other terpene alcohols from their glycosides or oxidation of α-humulene. Yeast metabolism also played an important role in these changes. © 2022 by the authors.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21101 - Food and beverages

Projekt

<a href="/cs/project/TE02000177" target="_blank" >TE02000177: Centrum pro inovativní využití a posílení konkurenceschopnosti českých pivovarských surovin a výrobků</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Foods

ISSN

2304-8158

e-ISSN

2304-8158

Svazek periodika

11

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

nestrankovano

Kód UT WoS článku

000847072400001

EID výsledku v databázi Scopus

2-s2.0-85137328908