Study on the effect of malt and decoction mashing on polyphenols and antiradical power of wort

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F24%3AN0000013" target="_blank" >RIV/60193697:_____/24:N0000013 - isvavai.cz</a>

Result on the web

<a href="https://www.kvasnyprumysl.eu/index.php/kp/article/view/303" target="_blank" >https://www.kvasnyprumysl.eu/index.php/kp/article/view/303</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.18832/kp2024.70.846" target="_blank" >10.18832/kp2024.70.846</a>

Result language

angličtina

Original language name

Study on the effect of malt and decoction mashing on polyphenols and antiradical power of wort

Original language description

Mashing is one of the key operations in beer brewing. Together with polyphenolic compounds it can affect the quality and stability of beer. In our pilot brewing trials of pale lager (200 L), malts of three barley varieties were compared using either infusion or double decoction mashing. Total polyphenols, anthocyanogens and flavanoids were determined in sweet and hopped wort. Free phenolics were measured by HPLC coupled with coulometric detection. Antiradical power was determined by RC-DCPI, ARA-DPPH and ESR-T150 methods. In this way the influence of mashing method and barley variety on polyphenols and antiradical activity of sweet wort was demonstrated showing that the effect of mashing was stronger (ANOVA). The results showed significantly higher, i.e. by tens of per cent, levels of all polyphenols studied in both the decoction sweet wort and hopped wort. The decoction process resulted in higher levels of the antiradical power, ARA-DPPH (37-47%) and RC-DCPI (25-60%). A cluster analysis partitioned 28 free phenolic compounds in sweet wort primarily by variety and secondarily by mashing. The Malz malt showed a greater increase in polyphenols, free phenolic compounds and antiradical power in the decoction process compared to the Bojos and Sebastian malts. Decoction mashing introduces higher levels of phenolic antioxidants into the beer with the potential to improve the sensory stability of the beer and provide health benefits to the consumer. The different behaviour of malts and barley varieties needs to be better elucidated in further research

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

40401 - Agricultural biotechnology and food biotechnology

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

KVASNÝ PRŮMYSL

ISSN

2570-8619

e-ISSN

2570-8619

Volume of the periodical

70

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

9

Pages from-to

846-854

UT code for WoS article

001167977300001

EID of the result in the Scopus database

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