Conclusions
Any lignocellulosic biomass, upon pretreatment and enzymatic
hydrolysis, generates a mixture of pentose and hexose sugars. The
recombinant E. coli strain FBR5 can convert all these sugars to ethanol.
However, the fermentation becomes slower due to catabolite
repression of glucose and arabinose on the utilization of xylose.
Substrate selective inoculum preparation and fermentation manipulation
of SSF is crucial to partially overcome the problem.