Wines with Increased Lignan Content by the Addition of Lignan Extracts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F16%3A00465138" target="_blank" >RIV/86652079:_____/16:00465138 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43510/16:43910567 RIV/00027022:_____/16:00000615

Výsledek na webu

<a href="http://dx.doi.org/10.17221/575/2015-CJFS" target="_blank" >http://dx.doi.org/10.17221/575/2015-CJFS</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/575/2015-CJFS" target="_blank" >10.17221/575/2015-CJFS</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Wines with Increased Lignan Content by the Addition of Lignan Extracts

Popis výsledku v původním jazyce

Red and white wines [Grüner Veltliner white wine and Blue Limberger (Blaufränkisch) red wine (vintage 2013)] werenenriched with lignan hydroxymatairesinol originated from spruce knots. These spruce knots with removed resin werenextracted with ethyl alcohol of agricultural origin. Ethanol extracts of lignans were then used to enrich wine sorts.nEnriched wines were stored for 13 months. At 2, 6, and 13 months, samples were taken and subjected to a variety ofnanalyses and sensory evaluations. Analyses included 7-hydroxymatairesinol and alpha-conidendrin lignan content,nantioxidant activity (as determined by FRAP), total polyphenols, and sensory evaluation. The obtained data werenevaluated using the analysis of variance to determine which factors e.g. wine type, quantity of added lignan extracts,nadditional sugar, method of preservation, and storage time had the most significant influence on lignan content, antioxidantnactivity and polyphenol content. In all cases the lignan content in the wines was significantly influenced bynthe addition of lignan extracts. After one year of storage, lignan contents changed only moderately and added lignansnwere stable in stored wines. Total polyphenol content in wines and the antioxidant activity of wines were significantlyninfluenced by the type of wine (i.e., red or white). The presented method of wine enrichment with lignans opens thendoor for the production of extra quality wines.

Název v anglickém jazyce

Wines with Increased Lignan Content by the Addition of Lignan Extracts

Popis výsledku anglicky

Red and white wines [Grüner Veltliner white wine and Blue Limberger (Blaufränkisch) red wine (vintage 2013)] werenenriched with lignan hydroxymatairesinol originated from spruce knots. These spruce knots with removed resin werenextracted with ethyl alcohol of agricultural origin. Ethanol extracts of lignans were then used to enrich wine sorts.nEnriched wines were stored for 13 months. At 2, 6, and 13 months, samples were taken and subjected to a variety ofnanalyses and sensory evaluations. Analyses included 7-hydroxymatairesinol and alpha-conidendrin lignan content,nantioxidant activity (as determined by FRAP), total polyphenols, and sensory evaluation. The obtained data werenevaluated using the analysis of variance to determine which factors e.g. wine type, quantity of added lignan extracts,nadditional sugar, method of preservation, and storage time had the most significant influence on lignan content, antioxidantnactivity and polyphenol content. In all cases the lignan content in the wines was significantly influenced bynthe addition of lignan extracts. After one year of storage, lignan contents changed only moderately and added lignansnwere stable in stored wines. Total polyphenol content in wines and the antioxidant activity of wines were significantlyninfluenced by the type of wine (i.e., red or white). The presented method of wine enrichment with lignans opens thendoor for the production of extra quality wines.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GM - Potravinářství

OECD FORD obor

—

Projekt

<a href="/cs/project/QJ1210258" target="_blank" >QJ1210258: Extrakce lignanů z dřevní hmoty a jejich využití v doplňcích stravy s významnými biologickými účinky</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Czech Journal of Food Sciences

ISSN

1212-1800

e-ISSN

—

Svazek periodika

34

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

439-444

Kód UT WoS článku

000387597100008

EID výsledku v databázi Scopus

2-s2.0-84994667103