Abstracto

Modelling of Hyssop-Supercritical Carbon Dioxide Extraction System

Sabina Begić, Vladan Mićić, Zoran Petrović, Pero Dugić

The Hyssop officinalis L. was extracted using supercritical carbon – dioxide (SFE – CO2) as extractant. Extraction was carried out in the two steps: the first one being carried out at 100 bar and 40ºC in time 4 h for the mean particle size 0.49 mm (extract A), and the second was the extraction of the hyssop sample at same conditions (pressure, temperature and time) for the mean particle size 0.13 mm (extract B). The supercritical fluid extraction (SFE) with carbon dioxide was carried out using a laboratory scale high pressure extraction plant - HPEP (Nova Swiss, Effretikon, Switzerland). Separator conditions were 15 bar and 25 ºC. Extraction kinetics of the system hyssop – SFE – CO2 was investigation. Mathematical modeling using Modified Reverchon - Sesti Osseo equation has been performed on Hyssop officinalis L. With modified equation fitted results was well.