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

SYSNO ASEP	0443166
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Various Extraction Methods for Obtaining Stilbenes from Grape Cane of Vitis vinifera L
Author(s)	Soural, I. (CZ) Vrchotová, Naděžda (UEK-B)_{RID, SAI, ORCID} Tříska, Jan (UEK-B)_{RID, ORCID, SAI} Balík, J. (CZ) Horník, Štěpán (UCHP-M)_{ORCID, RID, SAI} Cuřínová, Petra (UCHP-M)_{RID, SAI, ORCID} Sýkora, Jan (UCHP-M)_{RID, ORCID, SAI}
Source Title	Molecules. - : MDPI Roč. 20, č. 4 (2015), s. 6093-6112
Number of pages	20 s.
Language	eng - English
Country	CH - Switzerland
Keywords	Vitis vinifera L ; grape cane ; stilbenes ; accelerated solvent extraction (ASE) ; microwave-assisted extraction (MAE) ; LC-MS
Subject RIV	CB - Analytical Chemistry, Separation
R&D Projects	LD14038 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	RVO:67179843 - RVO:67179843 ; UCHP-M - RVO:67985858
UT WOS	000354480700052
EID SCOPUS	84928663035
DOI	10.3390/molecules20046093
Annotation	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.
Workplace	Global Change Research Institute
Contact	Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268
Year of Publishing	2016

Number of the records: 1