Influence of Operating Parameters on Concentration and Purification of L-lactic Acid Using Electrodialysis

Title
Influence of Operating Parameters on Concentration and Purification of L-lactic Acid Using Electrodialysis
Author(s)
위영중류화원[류화원]김영민[김영민]
Keywords
ENTEROCOCCUS-FAECALIS RKY1; CORN STEEP LIQUOR; L(+)-LACTIC ACID; BIOTECHNOLOGICAL PRODUCTION; FERMENTATIVE PRODUCTION; BATCH FERMENTATION; WOOD HYDROLYZATE; RECOVERY; BROTH
Issue Date
201212
Publisher
KOREAN SOC BIOTECHNOLOGY & BIOENGINEERING
Citation
BIOTECHNOLOGY AND BIOPROCESS ENGINEERING, v.17, no.6, pp.1261 - 1269
Abstract
An experimental investigation was presented to determine the optimum configuration of influential parameters (concentrate volume, flow rate, temperature, initial lactate concentration, voltage, and impurities) for the best performance. AMX-CMX ion-exchange membranes were used in all experiments. Temperature was found to possess an important role in the increase of lactate recovery, and it was not increased to high values due to membrane destruction. When the higher voltage was applied to electrodialyzer, the better performance of electrodialysis was observed due to enhancement of the driving force. It was found that, to achieve an optimum operating condition, feed volume, concentrate volume, flow rate, temperature, initial lactate concentration in concentrate, and voltage should be 2 L, 1 L, 0.8 L/min, 32 degrees C, 1 g/L, and 15.0 V, respectively. Under these optimized conditions, 97% of lactate was successfully recovered from the fermentation broth, where the lactate flux and energy cost were 7.2 +/- 0.6 moles/m(2)/h and 0.25 kWh/kg, respectively. The results of experiments indicate that the lactic acid in the fermentation broth can be economically purified by electrodialysis.
URI
http://hdl.handle.net/YU.REPOSITORY/26723http://dx.doi.org/10.1007/s12257-012-0316-7
ISSN
1226-8372
Appears in Collections:
자연자원대학 > 식품공학과 > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE