Evaluation of the Efficiency of Supercritical Carbon Dioxide Extraction for Pelargonium graveolens L'Her Essential Oil Production

摘要

The optimal conditions (40 degrees C, 16 MPa, process duration of 30 min) for the extraction of Pelargonium graveolens L'Her essential oil using supercritical (SC) carbon dioxide are determined. GC-MS analysis shows higher concentrations of the target components (e.g., citronellol, geraniol) in the product in comparison to the oil obtained using a traditional method (steam distillation). Additional components, such as camphene, sabinene, and others are also present in the product obtained by the extraction with SC-CO2.