Superkriticlá extrakce cynaropikrinu a 20-hydroxyekdysonu z parchy saflorové

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F08%3A00307375" target="_blank" >RIV/67985858:_____/08:00307375 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11160/08:00109264

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Supercritical Fluid Extraction of Cynaropicrin and 20-Hydro.xyecdysone from Leuzea carthamoides DC

Popis výsledku v původním jazyce

Leuzea carthamoides is an adaptogenic plant containing biologically active compounds as ecdysteroids and guaianolide-type sesquiterpene lactones, conventionally extracted from the plant with ethanol. Ethanol-modified near-critical CO2 was used as selective solvent with the aim to increase the level of 20-hydroxyecdysone (20E) in the extract from L. carthamoides roots and to remove selectively cynaropicrin, a sesquiterpene lactone of bitter taste, from the leaves. The extraction conditions were varied (pressure 20-28 MPa, temperature 40-60 ?C, ethanol concentration in the solvent 0-7.1 %) and the extraction yield and extract composition were compared with the results of ethanol extraction. Cynaropicrin was quantitatively removed from the leaves where 89% of 20E was retained. The extraction yield of 20E from roots with ethanol-modified CO2 was by 30 % lower than with ethanol but its concentration in the extract was by 67 % higher.

Název v anglickém jazyce

Supercritical Fluid Extraction of Cynaropicrin and 20-Hydro.xyecdysone from Leuzea carthamoides DC

Popis výsledku anglicky

Leuzea carthamoides is an adaptogenic plant containing biologically active compounds as ecdysteroids and guaianolide-type sesquiterpene lactones, conventionally extracted from the plant with ethanol. Ethanol-modified near-critical CO2 was used as selective solvent with the aim to increase the level of 20-hydroxyecdysone (20E) in the extract from L. carthamoides roots and to remove selectively cynaropicrin, a sesquiterpene lactone of bitter taste, from the leaves. The extraction conditions were varied (pressure 20-28 MPa, temperature 40-60 ?C, ethanol concentration in the solvent 0-7.1 %) and the extraction yield and extract composition were compared with the results of ethanol extraction. Cynaropicrin was quantitatively removed from the leaves where 89% of 20E was retained. The extraction yield of 20E from roots with ethanol-modified CO2 was by 30 % lower than with ethanol but its concentration in the extract was by 67 % higher.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Separation Science

ISSN

1615-9306

e-ISSN

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Svazek periodika

31

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

1387-1392

Kód UT WoS článku

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EID výsledku v databázi Scopus

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