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Updated: Jul 11, 2026

Continuous Liquid-Liquid Extraction of Medium-Chain Fatty Acids from Fermentation Broth Using Hollow-Fiber Membranes
Published on: August 9, 2024
Liquid-phase microextraction with porous hollow fibers, a miniaturized and highly flexible format for liquid-liquid
Stig Pedersen-Bjergaard1, Knut Einar Rasmussen
1School of Pharmacy, University of Oslo, PO Box 1068 Blindern, 0316 Oslo, Norway. stigpe@farmasi.uio.no
Abstract:
Since 1999, substantial research has been devoted to the development of liquid-phase microextraction (LPME) based on porous hollow fibers. With this technology, target analytes are extracted from aqueous samples, through a thin supported liquid membrane (SLM) sustained in the pores in the wall of a porous hollow fiber, and further into a microL volume of acceptor solution placed inside the lumen of the hollow fiber. After extraction, the acceptor solution is directly subjected to a final chemical analysis by liquid chromatography (HPLC), gas chromatography (GC), capillary electrophoresis (CE), or mass spectrometry (MS). In this review, LPME will be discussed with focus on extraction principles, historical development, fundamental theory, and performance. Also, major applications have been compiled, and recent forefront developments will be discussed.
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