syrups of high sugar contents having very high soluble solid contents
(>30%). After mash viscosity reduction and fermentation,
fermented mash with high ethanol concentrations (up to 14.6% w/
w or 18% v/v) can be achieved compared to conventional method
that produces fermented mash with 8% w/w or 10% v/v ethanol
(Sriroth et al., 2010). Simultaneous Saccharification and Fermentation
(SSF) technology allows saccharification and fermentation to
be conducted simultaneously. Even though VHG-SSF together has
yet became commercialized. The advantages from VHG-SSF application
are more plant efficiency and energy reduction input which
accounted at 18.5% as well as water input at 99 ton/100 ton of
cassava roots comparing to the conventional system (Sriroth et al.,
2010; Sriroth, 2013; Piyachomkwan, 2011; Kim et al., 1997).