Study on the SFE condition for curcumin in Curcuma longa / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To optimize the conditions of supercritical fluid extraction (SFE) for curcumin in Curcuma longa.</p><p><b>METHOD</b>Optimum extraction conditions were studied by orthogonal tests. The extracts were analyzed by HPLC.</p><p><b>RESULT</b>The optimal extraction conditions were pressure 25 MPa, temperature 55 degrees C, static time 4 h, dynamic time 5 h, flow rate of CO2 3.5 L x min(-1), co-solvent ethanol 30% (mL x g(-1)).</p><p><b>CONCLUSION</b>It is feasible to extract curcumin by SFE.</p>