Balance of volatile phenols originating from wood- and peat-smoked malt during the brewing process

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F22%3A43924699" target="_blank" >RIV/60461373:22330/22:43924699 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/article/10.1007/s00217-022-04130-8" target="_blank" >https://link.springer.com/article/10.1007/s00217-022-04130-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00217-022-04130-8" target="_blank" >10.1007/s00217-022-04130-8</a>

Result language

angličtina

Original language name

Balance of volatile phenols originating from wood- and peat-smoked malt during the brewing process

Original language description

The characteristic aroma of smoked malts and, subsequently, of the beers made from them, is mainly derived from phenols, guaiacols, syringols and some furan derivatives. These compounds are the products of pyrolysis, which are transferred to the malt during kilning by the smoke generated through the burning of wood or peat. In the work presented here, the contents of nine characteristic markers in two malts kilned by wood- and peat smoke as well as bottom- and top-fermented beers brewed exclusively from these malts, including intermediate products, were determined using HS-SPME coupled with GC–MS. Significant differences in the content and ratios of specified compounds were found for each type of malt. The peat-smoked malt contained up to 4 times higher levels of most analytes, with significantly higher phenol and cresols (4.2–16.5 mg.kg−1) compared to guaiacols (about 2 mg kg−1). In contrast, in wood-smoked malt, both groups of compounds were present at comparable levels between 1 and 2 mg kg−1. During mashing and wort-boiling, levels of volatile phenols decreased by up to 80% of their original amount. Significantly lower losses occurred during fermentation, and no significant differences were found for beers fermented using different yeasts. Nevertheless, most of the differences in the contents of the analysed compounds found in the malts were carried over to the beers. Differences in the composition of beers made from malts kilned using different materials were also confirmed statistically using cluster analysis by comparison with commercially available smoked beers. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

21101 - Food and beverages

Project

<a href="/en/project/TE02000177" target="_blank" >TE02000177: Centre for Innovative Use and Strengthening of Competitiveness of Czech Brewery Raw Materials and Products</a><br>

Continuities

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

Publication year

2022

Confidentiality

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

Name of the periodical

European Food Research and Technology

ISSN

1438-2377

e-ISSN

1438-2385

Volume of the periodical

neuveden

Issue of the periodical within the volume

Oct 2022

Country of publishing house

DE - GERMANY

Number of pages

13

Pages from-to

33-45

UT code for WoS article

000866309800002

EID of the result in the Scopus database

2-s2.0-85139636658