Improvement of lactic acid production from cassava by streptococcus bovis using two-stages membrane bioreactor

Abstract

The investigation of improvement for lactic acid production from fresh cassava roots by Streptococcus bovis using two-stages membrane bio react or with purging was performed to increase the concentration and productivity of lite lactic acid. The result showed that by the use of two-stages membrane bioteaclor. the productivity and concentration of lactic acid were 5.03 and 50 g/l., respectively which were obtained al dilution rate of 0.25 h-1 and 30 g/l., feeding sugar concentration. Based on the data obtained, it is shown that the (wo-stages membrane bioreactor system was very effective and efficient and it could be potentially used for the production of lactic acid from fresh cassava roots by S. bovis. Cassava roots Lactic acid Two-stages reactor S. bovis.