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This study examined pilot-scale extraction and lab-scale deacidification of rice bran oil by using supercritical carbon dioxide (SC-CO 2 ). Two purest gamma-oryzanols (γ-oryzanols) (>98wt%) were initially obtained by preparative reverse-phase high-performance liquid chromatography. Supercritical carbon dioxide extraction at 300bar and 313K from 1.03kg powdered rice bran indicated a total...