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KMID : 0380020090240040367
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Korean Journal of Biotechnology and Bioengineering
2009 Volume.24 No. 4 p.367 ~ p.376
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Extraction of Oil from Canola Seeds with Supercritical Carbon Dioxide
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Hwang Ah-Reum
Ryu Jong-Hoon
Lim Kyo-Bin
Jung In-Il
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Abstract
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In this study, two supercritical extraction systems of different scale, analytical-scale and lab-scale, were employed to investigate the extraction efficiency of canola oil from canola seeds using supercritical carbon dioxide () as an extraction solvent. The effects of various parameters such as extraction temperature (), pressure (200~500 bar), particle size, and flow direction on the extraction rate and yield were examined in detail. Triglycerides and fatty acids in the extracted canola oil were analyzed quantitatively by high-performance liquid chromatography and gas chromatography. The solubility values of canola oil in could be calculated from the experimental results. Similar extraction yields were obtained from both analytical-scale and lab-scale extraction systems. The extraction rates obtained under solvent ( ) upflow conditions were found to be higher than those of solvent downflow extraction. However, the effect of flow direction on the extraction yield was observed to be relatively insignificant.
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KEYWORD
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Supercritical extraction, carbon dioxide, canola oil, scale-up
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