Simultaneous integration of supercritical fluid extraction and mechanical cold pressing for the extraction from Baru seed

Chañi-Paucar L.O.; Johner J.C.F.; Hatami T.; Meireles M.A.A. · Journal of Supercritical Fluids (2022) · DOI: 10.1016/j.supflu.2022.105553

Resumen

Supercritical fluid extraction (SFE) assisted by cold pressing (SFEAP) was previously reported in the literature for oleaginous raw materials to improve the SFE process, but it suffers from operational disadvantages due to its sequential, instead of simultaneous, extraction operations. Therefore, this study aimed to address this issue by simultaneous integrating of SFE and mechanical cold pressing. This new extraction unit, which is called sCO2 + MCP, was successfully examined for the extraction of oil from Baru seed (BS) under the extraction pressure from 10 to 30 MPa and piston pressure from 10 to 30 MPa. The highest extraction yield (25.1% w/w) obtained by a combination of piston pressure of 15 MPa and an extraction pressure of 10 MPa. The main advantage of the sCO2 + MCP unit over SFE and SFEAP units is significantly reducing extraction pressure from 35 MPa to 10 MPa.

Instituciones: Universidad Nacional Autónoma Altoandina de Tarma