The effect of yeast autolysis on the composition of wine

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F24%3A43924967" target="_blank" >RIV/62156489:43510/24:43924967 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.5219/1945" target="_blank" >https://doi.org/10.5219/1945</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5219/1945" target="_blank" >10.5219/1945</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of yeast autolysis on the composition of wine

Popis výsledku v původním jazyce

The experiment aims to monitor the amino acid content, total polyphenolic components, and antioxidant activity values of wines that have matured on yeast and non-yeast sludge. The grape varieties used in the experiment, which lasted 300 days, were (Vitis vinifera L.) Chardonnay, Riesling rhinestone, and Veltliner green. During this time, both the measured parameters and the characteristics of the wine gradually changed. The total amount of amino acids in the wines aged on yeast sludge was more than 200% greater than that found in wines aged without yeast sludge. A 30% decrease in the total polyphenolic component content was noted for wines produced with yeast lees. The antioxidant activity levels correlated with the total polyphenol content, with the levels in wines made with yeast lees on average 13% lower. The experiment showed that wines produced by these different methods have different mutagenic characteristics. Sensory analysis of the wines demonstrated that wines matured on yeast sludge have better organoleptic properties. These wines were sturdier, fuller, and more harmonious than wines aged without a yeast sludge.

Název v anglickém jazyce

The effect of yeast autolysis on the composition of wine

Popis výsledku anglicky

The experiment aims to monitor the amino acid content, total polyphenolic components, and antioxidant activity values of wines that have matured on yeast and non-yeast sludge. The grape varieties used in the experiment, which lasted 300 days, were (Vitis vinifera L.) Chardonnay, Riesling rhinestone, and Veltliner green. During this time, both the measured parameters and the characteristics of the wine gradually changed. The total amount of amino acids in the wines aged on yeast sludge was more than 200% greater than that found in wines aged without yeast sludge. A 30% decrease in the total polyphenolic component content was noted for wines produced with yeast lees. The antioxidant activity levels correlated with the total polyphenol content, with the levels in wines made with yeast lees on average 13% lower. The experiment showed that wines produced by these different methods have different mutagenic characteristics. Sensory analysis of the wines demonstrated that wines matured on yeast sludge have better organoleptic properties. These wines were sturdier, fuller, and more harmonious than wines aged without a yeast sludge.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

21101 - Food and beverages

Projekt

<a href="/cs/project/EF16_017%2F0002334" target="_blank" >EF16_017/0002334: Výzkumná infrastruktura pro mladé vědce</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Potravinárstvo

ISSN

1338-0230

e-ISSN

1337-0960

Svazek periodika

18

Číslo periodika v rámci svazku

12 February

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

12

Strana od-do

97-108

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85187535278