Separation of lactic acid from fermented broth by reactive extraction |
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Authors: | M Järvinen L Myllykoski R Keiski J Sohlo |
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Institution: | (1) Department of Process Engineering, University of Oulu, P.O. Box 4300, FIN-90401 Oulu, Finland |
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Abstract: | The separation of lactic acid from complex fermentation broth was examined. Liquid–liquid extraction using reversible chemical complexation for reactive extraction was chosen to be the separation method. Over 50% yield of lactic acid was obtained from fermented broth in a single extraction step, when using the tertiary amine as the extractant, 1-dekanol as the diluent and trimethylamine (TMA) as the stripping solution. The effect of complex media on the extraction behaviour has hardly been examined previously. |
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Keywords: | lactic acid reactive extraction trimethylamine |
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