ABSTRACT

Lignocellulosic biomass is the most abundant organic material present on the surface of the earth. It has the capacity to provide almost 13% of the worldwide energy consumption. Having the production potential to be around 220 billion tones, it is not fully exploited of its potential. Technologies for the production of bioethanol from lignocellulosic biomass have evolved quite a lot since the introduction of the concept of biofuel. The major obstacles which arise are the presence of lignin in the complex web-like structure with cellulose and the inefficiency of the microbes identified to produce all three set of enzymes of the cellulase system (endoglucanase, exoglucanase, and β-1,4-glucosidase) efficiently. Other issues, which arise at the pretreatment step, are the cost-effectiveness and also some environmental issues. Apart from this at the hydrolysis step, the feedback inhibition by the products creates a major hindrance. Bioethanol production from lignocellulosic biomass gives us an alluring insight to the future of renewable energy development.