Influence of barley variety and growing locality on the profile of flavonoid polyphenols in malt

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F19%3AN0000018" target="_blank" >RIV/60193697:_____/19:N0000018 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.kvasnyprumysl.eu/index.php/kp/article/view/181" target="_blank" >http://www.kvasnyprumysl.eu/index.php/kp/article/view/181</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.18832/kp2019.65.149" target="_blank" >10.18832/kp2019.65.149</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of barley variety and growing locality on the profile of flavonoid polyphenols in malt

Popis výsledku v původním jazyce

Some polyphenol substances are important for beer production as well as for the health benefits of beer consumption. Hop polyphenols have been relatively well researched in the last decade, less attention has been paid to malt. Our study was aimed to determine the influence of the barley variety and growing locality on the profile of proanthocyanidins (PAC), monomeric flavanols, flavonols and their glycosides in malt. Laboratory malts from three barley cultivars grown in seven countries of the European Union were analyzed by the developed LC-HR / MS method with sample preparation by the QuEChERS technique. Dimers of (epi)catechin (37.0%) and dimers (epi)catechin – (epi)gallocatechin (36.4%) dominate the PAC profile of malt, monomer content being low. Flavanols (epi)catechin and (epi)catechin-O-glucoside have been identified and quantified in malts. The flavonols were quercetin and myricetin, their glycosides were not detected. The results suggest varietal dependence of the PAC, monomeric flavanols and flavonols profile and the lesser impact of the growing locality.

Název v anglickém jazyce

Influence of barley variety and growing locality on the profile of flavonoid polyphenols in malt

Popis výsledku anglicky

Some polyphenol substances are important for beer production as well as for the health benefits of beer consumption. Hop polyphenols have been relatively well researched in the last decade, less attention has been paid to malt. Our study was aimed to determine the influence of the barley variety and growing locality on the profile of proanthocyanidins (PAC), monomeric flavanols, flavonols and their glycosides in malt. Laboratory malts from three barley cultivars grown in seven countries of the European Union were analyzed by the developed LC-HR / MS method with sample preparation by the QuEChERS technique. Dimers of (epi)catechin (37.0%) and dimers (epi)catechin – (epi)gallocatechin (36.4%) dominate the PAC profile of malt, monomer content being low. Flavanols (epi)catechin and (epi)catechin-O-glucoside have been identified and quantified in malts. The flavonols were quercetin and myricetin, their glycosides were not detected. The results suggest varietal dependence of the PAC, monomeric flavanols and flavonols profile and the lesser impact of the growing locality.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40401 - Agricultural biotechnology and food biotechnology

Projekt

<a href="/cs/project/LO1312" target="_blank" >LO1312: Výzkumné senzorické centrum v Praze a Výzkumná a vývojová varna - udržitelnost a rozvoj</a><br>

Návaznosti

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

Rok uplatnění

2019

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

65

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

149–157

Kód UT WoS článku

000504012200001

EID výsledku v databázi Scopus

—