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Extraction of soybean oil from full tat soybean flour was performed using a supercritical carbon dioxide extraction system. Extraction pressure and temperature of the process were 3,000-7,000 psig and 40-70℃, repectively. For the extraction of lg of soybean oil, 25l of carbon was consumed at 7,000 psig and 60℃, whereas more than 2501 of carbon dioxide was consumed at 3,000 psig and 60℃. The solubility of soybean oil in supercritical carbon dioxide decreased with the increase in temperature below 6,000 psig, and the reverse trend was observed above 6,000 psig. At 6,000 psig the solubilities were shown to be, constant regardless of extraction temperature. Soybean oils , xtracted with supercritical carbon dioxide were lighter in color and contained less phosphorus than those extracted with hexane.
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