Supercritical CO<sub>2</sub> extraction of aqueous suspensions of disrupted <i>Haematococcus pluvialis</i> cysts

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dc.contributor.authorAravena, Raul, I
dc.contributor.authordel Valle, Jose M.
dc.contributor.authorde la Fuente, Juan C.
dc.date.accessioned2025-01-20T22:01:07Z
dc.date.available2025-01-20T22:01:07Z
dc.date.issued2022
dc.description.abstractThis contribution compares the supercritical (SC) CO2 extraction of astaxanthin from disrupted Haematococcus pluvialis cysts in either an aqueous suspension or packed bed of dry powder at 40 or 70 degrees C and 35-55 MPa. The initial stage of the process for aqueous suspensions consisted of a solubility-controlled removal of water that delays oleoresin extraction in comparison to the dry substrate. In addition, residual water in the partially dried suspension made oleoresin extraction slower than from the dry substrate. However, the presence of water in an aqueous suspension surprisingly made the oleoresin extraction more sensitive to temperature in comparison to dry powder, affecting the selectivity of the extraction for astaxanthin in a large extend.
dc.description.funderFondo deFomento al Desarrollo Cientifico y Tecnologico (FONDEF) of Chile
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.supflu.2021.105392
dc.identifier.eissn1872-8162
dc.identifier.issn0896-8446
dc.identifier.urihttps://doi.org/10.1016/j.supflu.2021.105392
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93793
dc.identifier.wosidWOS:000740349200006
dc.language.isoen
dc.revistaJournal of supercritical fluids
dc.rightsacceso restringido
dc.subjectAqueous suspension
dc.subjectAstaxanthin
dc.subjectOleoresin
dc.subjectHaematococcus pluvialis
dc.subjectSupercritical CO2 extraction
dc.titleSupercritical CO<sub>2</sub> extraction of aqueous suspensions of disrupted <i>Haematococcus pluvialis</i> cysts
dc.typeartículo
dc.volumen181
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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