ETHANOL PRODUCTION FROM CASSAVA STARCH USING THE PROCESS STRATEGY SIMULTANEOUS SACCHARIFICATION-FERMENTATION

  • Hader I. CASTAÑO P.
  • Carlos E. MEJÍA G.
Keywords: Bioethanol, cassava starch, simultaneous saccharification and fermentation (SSF), Separated

Abstract

The world trend on fuel management, in special biofuels like ethanol, have gone to explorer new

methodologies of process to optimize its production by this reason in this research is about simultaneous

sacarification fermentation process and evaluate initial concentration of reducing sugar, and enzyme

dosing of Spirizyme fuel® are evaluated on productivity and final concentration of ethanol, under SSF

(Simultaneous Saccharification and Fermentation) process, from the product of the licuefaction process

of cassava starch as substrate. The SSF process is evaluated against SHF (Independent Saccharification and

Fermentation) process as control. Only the factor, initial concentration of substrate presents effect over

ethanol productivity. The kinetic of SSF process, in opposite to the SHF process, presents time diminution

of the global process around 47 y 33% to substrate levels of 150 and 200 g/l respectively. The productivity

values are most at a 33% to 150 g/l of reducing sugar, and they keep constant to 200 g/l reducing sugar. The glucose in SSF strategy, at the time it is producing, it is transformed to ethanol, does not allowing to reach

superior concentration to 100 g/l of reducing sugar, this implicates there is not substrate inhibition. The

ethanol concentration doesn’t affect the enzymatic process of sacharification. The SSF process demonstrates

his technical viability on the ethanol production, to reduce time an energy requirements on the ethanol

production from cassava flour.

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Published
2009-02-17
How to Cite
CASTAÑO P. H. I., & MEJÍA G. C. E. (2009). ETHANOL PRODUCTION FROM CASSAVA STARCH USING THE PROCESS STRATEGY SIMULTANEOUS SACCHARIFICATION-FERMENTATION. Vitae, 15(2). Retrieved from https://revistas.udea.edu.co/index.php/vitae/article/view/797
Section
Biotechnology