Lignocellulosic biomass is abundant, renewable and environmentally
friendly resource, which can be converted into bioethano
But for the conversion of biomass
into bioethanol, the degradation of lignocelluloses is still a major
barrier to obtain a high overall ethanol yield. The pretreatment is
necessary to breakdown the recalcitrance of lignocellulosic biomass
for the second generation bio-ethanol production (Galbe
and Zacchi, 2012)
An effective pretreatment method can increase
the enzymatic digestion performance of lignocelluloses and reduce
consumption of enzyme in saccharification stage (Biswas et al.,
2015)
In the past two decades, variety of pretreatment methods
had been discovered, such as lime, dilute acid, steam explosion
and organic solvent pretreatment (Singh et al., 2015).