Varietal specificity of polyphenols, free phenolics and antioxidant potential in hops

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F19%3AN0000052" target="_blank" >RIV/60193697:_____/19:N0000052 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.kvasnyprumysl.eu/index.php/kp/article/view/196" target="_blank" >http://www.kvasnyprumysl.eu/index.php/kp/article/view/196</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.18832/kp2019.65.178" target="_blank" >10.18832/kp2019.65.178</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Varietal specificity of polyphenols, free phenolics and antioxidant potential in hops

Popis výsledku v původním jazyce

Many studies have confirmed hops (Humulus lupulus L.) as the source of number physiologically active polyphenols, important for both brewing and potentially pharmaceutical purposes. The three-year screening of polyphenols and 23 free phenolics profile (HPLC/coulometric detection) showed a significant association of polyphenols and free phenolics with DPPH antioxidant potential and the genetically determined specificity of free phenolics composition in hops. Varieties of American origin have a different profile compared to European varieties. For the first time, free phenolics hydroxycoumarins were detected in hops. The DPPH strongly correlated with total polyphenols and flavanoids (n = 95, r = 0.92, 0.93 respectively) and correlated negatively with alpha acids (n = 95, r = -0.73). The polyphenols and the DPPH decrease with increasing alpha acid both among varieties and within one variety. These findings can serve as a useful tool for hop selection in brewing or pharmaceutical production.

Název v anglickém jazyce

Varietal specificity of polyphenols, free phenolics and antioxidant potential in hops

Popis výsledku anglicky

Many studies have confirmed hops (Humulus lupulus L.) as the source of number physiologically active polyphenols, important for both brewing and potentially pharmaceutical purposes. The three-year screening of polyphenols and 23 free phenolics profile (HPLC/coulometric detection) showed a significant association of polyphenols and free phenolics with DPPH antioxidant potential and the genetically determined specificity of free phenolics composition in hops. Varieties of American origin have a different profile compared to European varieties. For the first time, free phenolics hydroxycoumarins were detected in hops. The DPPH strongly correlated with total polyphenols and flavanoids (n = 95, r = 0.92, 0.93 respectively) and correlated negatively with alpha acids (n = 95, r = -0.73). The polyphenols and the DPPH decrease with increasing alpha acid both among varieties and within one variety. These findings can serve as a useful tool for hop selection in brewing or pharmaceutical production.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

40105 - Horticulture, viticulture

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)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

178–185

Kód UT WoS článku

000505933000002

EID výsledku v databázi Scopus

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