Various Extraction Methods for Obtaining Stilbenes from Grape Cane of Vitis vinifera L

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F15%3A00443166" target="_blank" >RIV/67179843:_____/15:00443166 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985858:_____/15:00443166 RIV/62156489:43510/15:43906792

Výsledek na webu

<a href="http://dx.doi.org/10.3390/molecules20046093" target="_blank" >http://dx.doi.org/10.3390/molecules20046093</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/molecules20046093" target="_blank" >10.3390/molecules20046093</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Various Extraction Methods for Obtaining Stilbenes from Grape Cane of Vitis vinifera L

Popis výsledku v původním jazyce

Grape cane, leaves and grape marc are waste products from viticulture, which can be used to obtain secondary stilbene derivatives with high antioxidant value. The presented work compares several extraction methods: maceration at laboratory temperature, extraction at elevated temperature, fluidized-bed extraction, Soxhlet extraction, microwave-assisted extraction, and accelerated solvent extraction. To obtain trans-resveratrol, trans-ε-viniferin and r2-viniferin from grape cane of the V. vinifera variety Cabernet Moravia, various conditions were studied: different solvents, using powdered versus cut cane material, different extraction times, and one-step or multiple extractions. The largest concentrations found were 6030 680 µg/g dry weight (d.w.) for trans-resveratrol, 2260 90 µg/g d.w. for trans-ε-viniferin, and 510 40 µg/g d.w. for r2-viniferin. The highest amounts of stilbenes (8500 1100 µg/g d.w.) were obtained using accelerated solvent extraction in methanol.

Název v anglickém jazyce

Various Extraction Methods for Obtaining Stilbenes from Grape Cane of Vitis vinifera L

Popis výsledku anglicky

Grape cane, leaves and grape marc are waste products from viticulture, which can be used to obtain secondary stilbene derivatives with high antioxidant value. The presented work compares several extraction methods: maceration at laboratory temperature, extraction at elevated temperature, fluidized-bed extraction, Soxhlet extraction, microwave-assisted extraction, and accelerated solvent extraction. To obtain trans-resveratrol, trans-ε-viniferin and r2-viniferin from grape cane of the V. vinifera variety Cabernet Moravia, various conditions were studied: different solvents, using powdered versus cut cane material, different extraction times, and one-step or multiple extractions. The largest concentrations found were 6030 680 µg/g dry weight (d.w.) for trans-resveratrol, 2260 90 µg/g d.w. for trans-ε-viniferin, and 510 40 µg/g d.w. for r2-viniferin. The highest amounts of stilbenes (8500 1100 µg/g d.w.) were obtained using accelerated solvent extraction in methanol.

Druh

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

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Molecules

ISSN

1420-3049

e-ISSN

—

Svazek periodika

20

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

20

Strana od-do

6093-6112

Kód UT WoS článku

000354480700052

EID výsledku v databázi Scopus

2-s2.0-84928663035