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Original title:
Supercritical Fluid Fractionation for 20-Hydroxyecdysone Enrichment in Leuzea carthamoides Extract
Authors: Sajfrtová, Marie ; Maščeník, J. ; Sovová, Helena ; Bártlová, Milena
Document type: Papers
Conference/Event: International Congress of Chemical and Process Engineering CHISA 2010 and 7th European Congress of Chemical Engineering ECCE-7 /19./, Prague (CZ), 2010-08-28 / 2010-09-01
Year: 2010
Language: eng
Abstract: 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.
Keywords: hplc analysis; plant; supercritical fluid extraction
Project no.: CEZ:AV0Z40720504 (CEP), 2B06024 (CEP)
Funding provider: GA MŠk
Host item entry: Summaries 2, ISBN 978-80-02-02247-3
Note: Související webová stránka: www.chisa.cz/2010, www.ecce7.com
Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0188059
Permalink: http://www.nusl.cz/ntk/nusl-41666
The record appears in these collections:
Research > Institutes ASCR > Institute of Chemical Process Fundamentals
Conference materials > Papers
Authors: Sajfrtová, Marie ; Maščeník, J. ; Sovová, Helena ; Bártlová, Milena
Document type: Papers
Conference/Event: International Congress of Chemical and Process Engineering CHISA 2010 and 7th European Congress of Chemical Engineering ECCE-7 /19./, Prague (CZ), 2010-08-28 / 2010-09-01
Year: 2010
Language: eng
Abstract: 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.
Keywords: hplc analysis; plant; supercritical fluid extraction
Project no.: CEZ:AV0Z40720504 (CEP), 2B06024 (CEP)
Funding provider: GA MŠk
Host item entry: Summaries 2, ISBN 978-80-02-02247-3
Note: Související webová stránka: www.chisa.cz/2010, www.ecce7.com
Institution: Institute of Chemical Process Fundamentals AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0188059
Permalink: http://www.nusl.cz/ntk/nusl-41666
The record appears in these collections:
Research > Institutes ASCR > Institute of Chemical Process Fundamentals
Conference materials > Papers
Record created 2011-07-01, last modified 2024-01-26