Experimental data and modeling the supercritical fluid extraction of marigold (Calendula officinalis) oleoresin
LMAS Campos, EMZ Michielin, L Danielski… - The Journal of …, 2005 - Elsevier
The fixed bed extraction of marigold (Calendula officinalis) oleoresin with liquid and
supercritical carbon dioxide was investigated. The operating conditions studied were:
pressures ranging from 12 to 20MPa and temperatures from 293 to 313K, indicating solvent
densities ranging from 666 to 938 [Formula: see text], and solvent flow rate varying from 1.3×
10− 5 to 5.0× 10− 5 [Formula: see text]. The results show an increase in the extraction rate,
observed through the overall extraction curves (OEC), with increasing pressure. The …
supercritical carbon dioxide was investigated. The operating conditions studied were:
pressures ranging from 12 to 20MPa and temperatures from 293 to 313K, indicating solvent
densities ranging from 666 to 938 [Formula: see text], and solvent flow rate varying from 1.3×
10− 5 to 5.0× 10− 5 [Formula: see text]. The results show an increase in the extraction rate,
observed through the overall extraction curves (OEC), with increasing pressure. The …
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