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Separation of cephalosporin C and desacetyl cephalosporin C by high speed counter-current chromatography in aqueous two-phase systems

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Biotechnology Techniques

Summary

In the recovery of cephalosporin C (CPC) from fermentation broth, the separation of desacetyl cephalosporin C (DAC) is a major concern. Multistage extraction in aqueous two-phase systems, mainly PEG/ammonium sulfate systems, proved to be promising. In preparative scale operation, high speed counter-current chromatography (HSCCC) with eccentric columns was used with aqueous two-phase systems to obtain baseline resolution of CPC and DAC. Solvents (e.g. 5% acetone) or neutral salts (e.g. 1.45% KSCN) added into aqueous two-phase systems enhanced the separation efficiency. Operation parameters of HSCCC such as rotational speed and mobile phase flow rate can affect the retention of the stationary phase and HETP.

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Lin, PC., Chu, IM. Separation of cephalosporin C and desacetyl cephalosporin C by high speed counter-current chromatography in aqueous two-phase systems. Biotechnol Tech 9, 549–552 (1995). https://doi.org/10.1007/BF00152441

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  • DOI: https://doi.org/10.1007/BF00152441

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