초록
This study aims to assess the potential ethanol produced by employing tapioca solid waste to support energy demand in Indonesia. A bioethanol process was simulated under bioactivity process using Saccharomyces cerevisiae. Reduced sugar and polysaccharide were used as essential substrate. The simulation result indicate that SSF requires (59 to 62) h and overall process takes approximately seven days. Having averagely 564 414.7 t * yr<SUP>-1</SUP> of tapioca solid waste, it is possible to produce 57.793<SUP>.</SUP>10<SUP>3</SUP> kL * yr<SUP>-1</SUP>. This number could contribute to the 1.89% and 33.41% of bioethanol demand according to Ministry of Research and Technology and Ministry of Energy and Mineral Resource, respectively.