Modern method of lactic acid recovery from fermentation broth

V. Hábová, K. Melzoch and M. Rychtera
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V. Hábová: Department of Fermentation Chemistry and Bioengineering, Institute of Chemical Technology in Prague, Prague, Czech Republic
K. Melzoch: Department of Fermentation Chemistry and Bioengineering, Institute of Chemical Technology in Prague, Prague, Czech Republic
M. Rychtera: Department of Fermentation Chemistry and Bioengineering, Institute of Chemical Technology in Prague, Prague, Czech Republic

Czech Journal of Food Sciences, 2004, vol. 22, issue 3, 87-94

Abstract: Electrodialysis was used for lactic acid recovery from fermentation broth. In the first step, lactate was recovered and concentrated by desalting electrodialysis, and the second step was electroconversion of lactate to lactic acid by water-splitting electrodialysis. The final lactic acid concentration of 151 g/l was obtained. Total energy required in both electrodialysis processes was about 1.5 kWh per 1 kg of lactic acid obtained. The fermentation broth had to be pretreated prior to the electrodialysis experiments. The pretreatment consisted of ultrafiltration, decolourisation, and the removal of multivalent metal ions.

Keywords: lactic acid recovery; electrodialysis; pretreatment of fermentation broth (search for similar items in EconPapers)
Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjf:v:22:y:2004:i:3:id:3411-cjfs

DOI: 10.17221/3411-CJFS

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