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Published on: November 7, 2018
[Study on separation of essential oil of Caryophylli flos from oil-in-water emulsion by microfiltration]
Zhifeng Han1, Jie Shen, Liwei Guo
1Key Laboratory of Separation Engineering of Traditional Chinese Medicine Compound, Nanjing University of Traditional Chinese Medicine, Nanjing 210029, China. feng3141@163.com
Objective:
To separate essential oil of Caryophyllix flos from oil-in-water emulsion, and to enrich the essential oil by microfiltration (MF).
Method:
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.
Result:
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.
Conclusion:
It can be concluded that MF is a reasonable way to enrich essential oil of C. flox.
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