Separation of lactic acid from fermented broth by reactive extraction.
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.
Järvinen
M
M
University of Oulu, Department of Process Engineering, Finland. mjarvin@paju.oulu.fi
Myllykoski
L
L
Keiski
R
R
Sohlo
J
J
D003470:Culture Media; D005285:Fermentation; D007218:Industrial Microbiology / Q000379:methods*; D019344:Lactic Acid / Q000302:isolation & purification*; D007778:Lactobacillus / Q000378:metabolism*
D003470:Culture Media; D019344:Lactic Acid