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The Korean Society for Biotechnology and Bioengineering (한국생물공학회)
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Supercritical Carbon Dioxide Extraction of Oil from Chlorella vulgaris

초임계 이산화탄소를 이용한 Chlorella vulgaris의 오일 추출

  • 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)
  • Received : 2011.08.30
  • Accepted : 2011.10.25
  • Published : 2011.10.31
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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.

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References

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