Modeling the Extraction Process of Sage (Salvia Officinalis L.) with Supercritical CO 2 at Different Temperatures

Abstract

In this paper an investigation was done on the extraction of sage (Salvia officinalis L.) using supercritical carbon dioxide at different extraction temperatures (313, 323 and 333 K). For the qualitative and quantitative analysis of the obtained extracts methods GC-FID and GC-MS were applied. Qualitative and quantitative composition of the obtained CO 2 extracts and essential oils isolated from CO 2 extracts at different temperatures of extraction was also determined. The extraction system was modeled by using the modified equation Reverchon - Sesti Osseo, whereby the effect of temperature on the yield of the extract was studied. Based on the results of modeling the overall yield of the extract depending on the temperature, it is concluded that a given model approximates the experimental results very well in all cases.