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Effect of Conditions of Supercritical Fluid Extraction on Insecticidal Activity of Isolates from Rue
Sajfrtová, Marie ; Pavela, R. ; Karban, Jindřich
The aim of this study was to find optimal operating conditions of SFE from rue to obtain extract with maximal insecticidal activity. Several types of extracts were prepared using the benefit of variable solvent power of supercritical carbon dioxide. The extracts rich in volatile oil or oleoresin were obtained at 40 °C and 12 or 28 MPa, respectively. The extract enriched with polar components was extracted at pressure of 28 MPa and temperature of 40 °C with acetone added to CO2 as modifier (2.5 – 10 wt. %).
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