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Extraction of Stilbenes from Wine Industry Waste.

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    SYSNO ASEP0490482
    Document TypeC - Proceedings Paper (int. conf.)
    R&D Document TypeZáznam nebyl označen do RIV
    TitleExtraction 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, SAI
    Source TitleBook of Abstracts. - Louvain-la-Neuve : Université catholique de Louvain, 2018 / Gaigneux E. - ISBN N
    Pagess. 253
    Number of pages1 s.
    Publication formPrint - P
    ActionInternational Symposium on Supercritical Fluids /12./
    Event date22.04.2018 - 25.04.2018
    VEvent locationAntibes-Juan-Les-Pins
    CountryFR - France
    Event typeEUR
    Languageeng - English
    CountryFR - France
    Keywordssupercritical fluid extraction ; wine-processing industry ; stibenes
    Subject RIVCI - Industrial Chemistry, Chemical Engineering
    OBOR OECDChemical engineering (plants, products)
    R&D ProjectsTJ01000249 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
    Institutional supportUCHP-M - RVO:67985858
    AnnotationOur 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).
    WorkplaceInstitute of Chemical Process Fundamentals
    ContactEva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
    Year of Publishing2019
Number of the records: 1