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Supercritical Fluid Extraction of Minor Components of Vegetable Oils: beta-Sitosterol
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SYSNO ASEP 0346388 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Supercritical Fluid Extraction of Minor Components of Vegetable Oils: beta-Sitosterol Tvůrce(i) Sovová, Helena (UCHP-M) RID, ORCID, SAI
Galushko, A.A. (BG)
Stateva, R.P. (BG)
Rochová, Kristina (UCHP-M)
Sajfrtová, Marie (UCHP-M) RID, ORCID, SAI
Bártlová, Milena (UCHP-M)Zdroj.dok. Journal of Food Engineering. - : Elsevier - ISSN 0260-8774
Roč. 101, č. 2 (2010), s. 201-209Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova supercritical fluid extraction ; sea buckthorn oil ; beta-sitosterol Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství CEP 2B06024 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000281334000010 DOI 10.1016/j.jfoodeng.2010.07.002 Anotace The extracts of valuable vegetable oils containing a number of minor components have added value as pharmaceuticals and food additives. Beta-sitosterol (BS) as minor component of vegetable oil was extracted from ground seeds of sea buckthorn with supercritical CO2 at pressures 15–60 MPa and temperatures 40–80°C. The changes in the BS content in extract in the course of the extraction were evaluated using HPLC and described in terms of phase equilibrium. It was shown that the separation factors used in counter-current fractionation of oils apply also to the initial period of oil extraction from ground seeds. The equilibrium compositions of a model BS and trilinolein and CO2 mixture were calculated using SRK and PSRK equations of state. The BS to triacylglycerol separation factor, ranging from 1.0 to 3.1, was correlated with CO2 density. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2011
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