Extraction Process Optimization of Curcumin from Roxb. with Supercritical Carbon Dioxide Using Ethanol as a Cosolvent.

Roxb., known as temulawak, Javanese ginger, or Javanese turmeric, is a plant species belonging to the ginger family. This plant originated in Indonesia, more specifically on Java Island, and is usually used as medicine.

Oil removal from spent bleaching earth of vegetable oil refinery plant using supercritical carbon dioxide.

The oil in the spent bleaching earth (SBE) matrix was successfully removed by applying the supercritical carbon dioxide (SCCO) extraction technique in a semi-continuous flow-type system. The SCCO extraction process was conducted at 40-80 °C and 20-30 MPa with extraction time of ∼180 min. The color of SBE matrix changes from the dark to dark-pale color after the SCCO extraction treatment exhibiting the substances including oil in the SBE matrix were successfully removed.

Enhancement of Roxb Phytochemical Dissolution via Micronization Using a Supercritical Antisolvent Technique.

Fine particles comprising Roxb () rhizome extract were successfully generated using a supercritical carbon dioxide (SCCO) antisolvent technique. The SCCO antisolvent process was performed at 40 °C with 8-16 MPa operating pressures. The CO and feed solution flow rates were 15 and 0.

Formation of Fine Particles from Curcumin/PVP by the Supercritical Antisolvent Process with a Coaxial Nozzle.

The production of fine particles via the supercritical carbon dioxide (SC-CO) antisolvent process was carried out. The experiments were conducted at temperatures of 40-60 °C and pressures of 8-12 MPa with a 15 mL min carbon dioxide (CO) and 0.5 mL min feed solution flow rate.