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The study of glycerol-based fermentation and broth downstream by nanofiltration

Gryta Marek, Markowska-Szczupak Agata, Grzechulska-Damszel Joanna, Bastrzyk Justyna, Waszak Marta

Polish Journal of Chemical Technology

2014

Vol. 16, nr 4

117--122

In this work, the glycerol fermentation was carried out using Citrobacter freundii bacteria. The influence of glycerol and metabolites concentrations, and the pH changes on the efficiency of 1,3-propanediol production, during batch and fed-batch processes, was presented. The nanofiltration was used for the separation of obtained post-fermentation solutions. The resulted 1,3-PD solutions were significantly desalted, which may facilitate further downstream processes during 1,3-PD production.