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  • Authors: Huỳnh, Kỳ Phương Hạ. (2008)

  • The Supercritical Fluid Extraction (SCFE) process is a powerful technique to develop for separating products with high added value. In this study, Supercritical fluid Carbon Dioxide (SC CO2) was used in the extraction of essential oil from two different parts of the lemongrass plant, the leaves and the stems. The batch extraction process was carried out in a stand alone compact unit of SCFE system. The lemongrass was loaded into the 500m1 extractor with an up flow rate of 0.5 m3 per hour of CO2. The extraction temperature was varied from 35°C to 50°C while the extraction pressure applied was from 90 to 110 atmospheres and the length of material was varied from 4 mm to 8 mm. The extraction time was set at 3.0 hours. This study intends to compare the composition of essential oil extra...