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Supercritical Fluid Fractionation for 20-Hydroxyecdysone Enrichment in Leuzea carthamoides Extract
- 1.0347239 - ÚCHP 2011 CZ eng C - Conference Paper (international conference)
Sajfrtová, Marie - Maščeník, J. - Sovová, Helena - Bártlová, Milena
Supercritical Fluid Fractionation for 20-Hydroxyecdysone Enrichment in Leuzea carthamoides Extract.
Summaries 2. Praha: Process Engineering Publisher, 2010, s. 609. ISBN 978-80-02-02247-3.
[International Congress of Chemical and Process Engineering CHISA 2010 and 7th European Congress of Chemical Engineering ECCE-7 /19./. Prague (CZ), 28.08.2010-01.09.2010]
R&D Projects: GA MŠMT 2B06024
Institutional research plan: CEZ:AV0Z40720504
Keywords : supercritical fluid extraction * hplc analysis * plant
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
www.chisa.cz/2010, www.ecce7.com
Supercritical fluid extraction of 20-hydroxyecdysone (20-HE) using pure and modified carbon dioxide from seeds of Leuzea carthamoides was studied. The effect of operation conditions on the yields of whole extract and its minor component 20-HE was analysed in a series of experiments at pressures from 30 MPa to 60 MPa, temperatures from 40 °C to 80 °C and modifier (ethanol, methanol and acetone) concentrations in CO2 0-19 wt. %. The consecutively collected extract fractions were analysed using HPLC. The efficiency of SFE in terms of 20-HE concentration in extract and yield was compared with the efficiency of Soxhlet extraction with ethanol.
Permanent Link: http://hdl.handle.net/11104/0188059
Number of the records: 1