Recent insight into anaerobic digestion of lignocellulosic biomass for cost effective bioenergy generation

Abstract

The progress of clean alternative energy sources is of very essential owing to the increase in an energy crisis and the escalating problems of climatic change. In this regard, bioenergy generation from carbohydrate-rich Lignocellulose biomass (LCB) is a promising technique, owing to its benefits such as ease of availability, decrease in harmful emissions, eco-friendly, energy efficiency and sustainability. The key constituents present in LCB are cellulose, hemicellulose, and lignin. This biological conversion of LCB faces difficulties due to the recalcitrance of lignin. Thus, the delignification of LCB is essential for the removal of complex lignin compounds. The primary technologies employed for the conversion of LCB biomass to bioenergy and pretreatment technologies involved in removing the lignin barrier have been extensively discussed in the present review. Different microorganisms and enzymes used for the delignification and detoxification process have also been studied for the scaling up of industrial bioenergy production from LCB.

Keywords

• Lignocellulose biomass
• Lignin
• Recalcitrant
• Delignification
• Detoxification
• Bioenergy