Number of the records: 1  

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

  1. 1.
    0443166 - ÚVGZ 2016 RIV CH eng J - Journal Article
    Soural, I. - Vrchotová, Naděžda - Tříska, Jan - Balík, J. - Horník, Štěpán - Cuřínová, Petra - Sýkora, Jan
    Various Extraction Methods for Obtaining Stilbenes from Grape Cane of Vitis vinifera L.
    Molecules. Roč. 20, č. 4 (2015), s. 6093-6112. E-ISSN 1420-3049
    R&D Projects: GA MŠk(CZ) LD14038
    Institutional support: RVO:67179843 ; RVO:67985858
    Keywords : Vitis vinifera L * grape cane * stilbenes * accelerated solvent extraction (ASE) * microwave-assisted extraction (MAE) * LC-MS
    Subject RIV: CB - Analytical Chemistry, Separation
    Impact factor: 2.465, year: 2015

    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.
    Permanent Link:

    Various extraction methods for obtaining stilbenes from grape cae of vitis vinifera L..pdf21 MBPublisher’s postprintopen-access
Number of the records: 1  

  This site uses cookies to make them easier to browse. Learn more about how we use cookies.