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Vol. 26 No. 18 (2014): Vol 26 Issue 18

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Improvement of Lactic Acid Production from Cassava by Streptococcus bovis Using Two-Stages Membrane Bioreactor

https://doi.org/10.14233/ajchem.2014.17402
Suripto Dwi Yuwono
Department of Chemistry, Lampung University, Bandar Lampung 35145, Indonesia
Sonny Widiarto
Department of Chemistry, Lampung University, Bandar Lampung 35145, Indonesia
Sutopo Hadi
Department of Chemistry, Lampung University, Bandar Lampung 35145, Indonesia
Takao Kokugan
Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Tokyo 183-0057, Japan

Corresponding Author(s) : Suripto Dwi Yuwono

suripto.dwi@fmipa.unila.ac.id

Asian Journal of Chemistry, Vol. 26 No. 18 (2014): Vol 26 Issue 18

Abstract

The investigation of improvement for lactic acid production from fresh cassava roots by Streptococcus bovis using two-stages membrane bioreactor with purging was performed to increase the concentration and productivity of the lactic acid. The result showed that by the use of two-stages membrane bioreactor, the productivity and concentration of lactic acid were 5.03 and 50 g/L, respectively which were obtained at dilution rate of 0.25 h-1 and 30 g/L feeding sugar concentration. Based on the data obtained, it is shown that the two-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.

Keywords

Cassava roots Lactic acid Two-stages reactor S. bovis
Dwi Yuwono, S., Widiarto, S., Hadi, S., & Kokugan, T. (2014). Improvement of Lactic Acid Production from Cassava by Streptococcus bovis Using Two-Stages Membrane Bioreactor. Asian Journal of Chemistry, 26(18), 6249–6252. https://doi.org/10.14233/ajchem.2014.17402
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