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http://dx.doi.org/10.7841/ksbbj.2011.26.5.453

Supercritical Carbon Dioxide Extraction of Oil from Chlorella vulgaris  

Ryu, Jong-Hoon (Department of Chemical Engineering, The University of Suwon)
Park, Mi-Ran (Department of Chemical Engineering, The University of Suwon)
Lim, Gio-Bin (Department of Chemical Engineering, The University of Suwon)
Publication Information
KSBB Journal / v.26, no.5, 2011 , pp. 453-458 More about this Journal
Abstract
In this study, two different extraction techniques, organic solvent extraction and supercritical carbon dioxide ($SCCO_2$) extraction, were employed to evaluate the extraction efficiency of oil from Chlorella vulgaris. In the organic solvent extraction, the effects of various organic solvent on the extraction yield were investigated. The $SCCO_2$ extraction was carried out while varying such operating parameters as temperature, pressure, $SCCO_2$ flow rate, and cosolvent. About 4.9 wt% of oil was extracted from ground Chrollera vulgaris for 18 h when dichloromethane/methanol (2：1, v/v) was used as an extraction solvent. The oil yield of the $SCCO_2$ extraction was found to be very low (0.53 wt%) and to increase up to about 0.86 wt% with the addition of cosolvent.
Keywords
microalgae; Chlorella vulgaris; supercritical carbondioxide; extraction; oil;
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