Počet záznamů: 1  

Solute-matrix and Solute-Solute Interactions during Supercritical Fluid Extraction of Sea Buckthorn Leaves

  1. 1.
    SYSNO ASEP0383280
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevSolute-matrix and Solute-Solute Interactions during Supercritical Fluid Extraction of Sea Buckthorn Leaves
    Tvůrce(i) Sajfrtová, Marie (UCHP-M) RID, ORCID, SAI
    Sovová, Helena (UCHP-M) RID, ORCID, SAI
    Zdroj.dok.Procedia Engineering. - Amsterdam : Elsevier BV
    Roč. 42, SI (2012), s. 1682-1691
    Poč.str.10 s.
    AkceInternational Congress of Chemical and Process Engineering CHISA 2012 and 15th Conference PRES 2012 /20./
    Datum konání25.08.2012-29.08.2012
    Místo konáníPrague
    ZeměCZ - Česká republika
    Typ akceWRD
    Jazyk dok.eng - angličtina
    Země vyd.NL - Nizozemsko
    Klíč. slovasupercritical fluid extraction ; sea buckthom leaves ; solute-solute interaction
    Vědní obor RIVCI - Průmyslová chemie a chemické inženýrství
    CEPTA01010578 GA TA ČR - Technologická agentura ČR
    Institucionální podporaUCHP-M - RVO:67985858
    UT WOS000392862500172
    EID SCOPUS84891702637
    DOI10.1016/j.proeng.2012.07.561
    AnotaceIn this work, the SFE was applied to extract selected medicinal substances from sea buckthorn (Hippophae rhamnoides L.) leaves at different conditions (pressure 20-28 MPa, temperature 40-60 °C and ethanol concentration in CO2 0-6.9 wt. %) influencing solvent power of CO2. Interest was focused on the leaf oleoresin (total extract) and its minor components (fat soluble vitamins and carotenoids). The yield of polar component was still steadily increasing at the moment when the extraction is almost finished as non-polar components are exhausted and the increase in total extract is very low. Out of the operation variables, the ethanol concentration in CO2 showed the strongest effect on the extraction. The final yields of polar components were increasing with rising ethanol concentration in CO2. The extraction of non-polar components (vitamins and β-carotene) and polar lutein was synchronised with oleoresin, whereas the extraction of non-polar lycopene, a component strongly affected by entrainer, was not influenced by the extraction of oleoresin. The solute-solute interactions were expressed either as a delay of the initial extraction period for some poorly soluble components against the more soluble ones or, on the contrary, as a synchronous extraction of the components similar in structure
    PracovištěÚstav chemických procesů
    KontaktEva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
    Rok sběru2013
Počet záznamů: 1  

  Tyto stránky využívají soubory cookies, které usnadňují jejich prohlížení. Další informace o tom jak používáme cookies.