• Vladan Mićić University of East Sarajevo, Faculty of Technology, Karakaj bb, Zvornik, Republic of Srpska, Bosnia and Herzegovina
  • Sabina Begić University of Tuzla, Faculty of Technology, Univerzitetska 8, 75000 Tuzla, Bosnia & Herzegovina
  • Pero Dugić University of Banja Luka, Faculty of Technology, Vojvode Stepe Stepanovića 73, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
  • Zoran Petrović University of Banja Luka, Faculty of Technology, Vojvode Stepe Stepanovića 73, Banja Luka, Republic of Srpska, Bosnia and Herzegovina



In this paper, supercritical extraction of hyssop (Hyssopus officinalis L.) is performed by using carbon dioxide as extractant. Effect of pressure (80, 100 and 150 bar) on the yield of total extract at a temperature 313 K, flow 0.00323 kg/min and the average diameter of particles 0.49 mm is investigated. For modeling of extraction system hyssop – supercritical CO2, Naik's model is applied, where in the total yield of extract is determined. On the basis of the value of the correlation coefficient |r| (0.976 – 0.992), it was concluded that a very strong correlation was obtained between reciprocal values of the total extract yield and extraction time (1/y i 1/t), so it can be concluded that Naik's model can succesfully be applied for determining yield of total extract.


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