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Developments in liquid membrane separation of beta-lactam antibiotics
A C Ghosh1, M M Bora, N N Dutta
1Chemical Engineering Division, Regional Research Laboratory, Jorhat, India.
Bioseparation
|April 1, 1996
Summary
Liquid membrane technology offers efficient separation and purification of beta-lactam antibiotics like penicillins and cephalosporins. While stable liquid membranes are needed, hollow fiber systems show promise for industrial application.
Area of Science:
- Chemical Engineering
- Separation Science
- Biotechnology
Background:
- Beta-lactam antibiotics, including penicillins and cephalosporins, are crucial pharmaceuticals.
- Current separation and purification methods can be costly and inefficient.
- Liquid membrane technology presents a potential alternative for antibiotic recovery.
Purpose of the Study:
- To provide an overview of liquid membrane developments for beta-lactam antibiotic separation.
- To explore the application of reactive extraction in liquid membrane processes.
- To discuss the engineering and design considerations for industrial implementation.
Main Methods:
- Review of reactive extraction mechanisms (ion exchange, ion-pair) for beta-lactam separation.
- Evaluation of emulsion liquid membrane and supported liquid membrane techniques.
- Consideration of non-dispersive hollow fiber membrane systems.
Main Results:
- Liquid membrane processes demonstrate high selectivity and flux for beta-lactam extraction from fermentation broths.
- Advantages include low costs, compact installation, and reduced material inventory.
- Stability of liquid membranes remains a challenge for commercialization.
Conclusions:
- Liquid membrane technology, particularly reactive extraction, is a promising approach for beta-lactam antibiotic purification.
- Hollow fiber membrane systems offer a viable strategy for practical, non-dispersive applications.
- Further research is needed to address membrane stability for widespread commercial adoption.