TY - GEN
T1 - Optimization of fermentation conditions for high L-lactic acid production from cellobiose by Entercoccus mundtii QU 25
T2 - 2010 International Conference on Environmental Engineering and Applications, ICEEA 2010
AU - Abdel-Rahman, Mohamed Ali
AU - Zendo, Takeshi
AU - Sonomoto, Kenji
AU - Tashiro, Yukihiro
PY - 2010
Y1 - 2010
N2 - Optimization of L-(+)-lactic acid production from cellobiose, one of the main cellulase inhibitors during saccharifaying process, was studied. Fermentation runs pH-controlled at 7.0 provided the highest lactic acid produced (18.6 g/L) and maximum lactic acid productivity (2.1 g/L/h) which were increased by 376% and 346%, respectively in comparison to non pH-controlled batches. Moreover, the maximum L-lactic acid yield and optical purity were obtained at pH 7.0 with 0.94 g/g and 100%, respectively. The optimum temperature was found to be 43°C, at which the lactic acid yield and maximum productivity were 1.0 g/g and 3.44 g/L/h, respectively. This study provides an encouraging means for economic production of optically pure L-lactic acid from pre-hydrolyzed cellulosic materials.
AB - Optimization of L-(+)-lactic acid production from cellobiose, one of the main cellulase inhibitors during saccharifaying process, was studied. Fermentation runs pH-controlled at 7.0 provided the highest lactic acid produced (18.6 g/L) and maximum lactic acid productivity (2.1 g/L/h) which were increased by 376% and 346%, respectively in comparison to non pH-controlled batches. Moreover, the maximum L-lactic acid yield and optical purity were obtained at pH 7.0 with 0.94 g/g and 100%, respectively. The optimum temperature was found to be 43°C, at which the lactic acid yield and maximum productivity were 1.0 g/g and 3.44 g/L/h, respectively. This study provides an encouraging means for economic production of optically pure L-lactic acid from pre-hydrolyzed cellulosic materials.
UR - http://www.scopus.com/inward/record.url?scp=78449268369&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78449268369&partnerID=8YFLogxK
U2 - 10.1109/ICEEA.2010.5596153
DO - 10.1109/ICEEA.2010.5596153
M3 - Conference contribution
AN - SCOPUS:78449268369
SN - 9781424486205
T3 - ICEEA 2010 - 2010 International Conference on Environmental Engineering and Applications, Proceedings
SP - 307
EP - 311
BT - ICEEA 2010 - 2010 International Conference on Environmental Engineering and Applications, Proceedings
Y2 - 10 September 2010 through 12 September 2010
ER -