Study on separation of essential oil of Caryophylli flos from oil-in-water emulsion by microfiltration / 中国中药杂志

<p><b>OBJECTIVE</b>To separate essential oil of Caryophyllix flos from oil-in-water emulsion, and to enrich the essential oil by microfiltration (MF).</p><p><b>METHOD</b>Using membrane flux and removal rate of COD as the indicatrixes, the membrane material as well as the operating conditions containing pressure, surface speed, temperature were optimized.</p><p><b>RESULT</b>The results showed that QWLM membrane of hydrophilic is the proper membrane, and the best operating conditions was at 0.06 MPa, 60 degrees C, and 150 r min(-1) stir speed.</p><p><b>CONCLUSION</b>It can be concluded that MF is a reasonable way to enrich essential oil of C. flox.</p>