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Extraction of Stilbenes from Wine Industry Waste.
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SYSNO ASEP 0490482 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Extraction of Stilbenes from Wine Industry Waste. Author(s) Zachová, Zdeňka (UCHP-M) RID, ORCID, SAI
Topiař, Martin (UCHP-M) RID, ORCID, SAI
Sajfrtová, Marie (UCHP-M) RID, ORCID, SAI
Sovová, Helena (UCHP-M) RID, ORCID, SAISource Title Book of Abstracts. - Louvain-la-Neuve : Université catholique de Louvain, 2018 / Gaigneux E. - ISBN N Pages s. 253 Number of pages 1 s. Publication form Print - P Action International Symposium on Supercritical Fluids /12./ Event date 22.04.2018 - 25.04.2018 VEvent location Antibes-Juan-Les-Pins Country FR - France Event type EUR Language eng - English Country FR - France Keywords supercritical fluid extraction ; wine-processing industry ; stibenes Subject RIV CI - Industrial Chemistry, Chemical Engineering OECD category Chemical engineering (plants, products) R&D Projects TJ01000249 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Institutional support UCHP-M - RVO:67985858 Annotation Our work compares the efficiency of pressurized solvent extraction (PSE), supercritical fluid extraction (SFE), and Soxhlet extraction of resveratrol and two viniferins from grape cane. The chemical composition of all plant isolates was determined by HPLC. Conditions of PSE, the most efficient method for the extraction of stilbenes, were optimized. The SFE of viniferins was enabled by adding to supercritical C02 ethanol as entraîner. Even then, the SFE of highly polar viniferins was not complete. On the other hand, the combination of SFE and PSE could be used to prepare extracts of tailored mutual ratio of trans-resveratrol, r2-viniferin, and trans-e-viniferin (Fig. I). Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2019
Number of the records: 1