Lignin: A way towards the sustainable biorefinery

Various sources of lignocellulosic biomass, such as forestry waste and agricultural feedstocks, are available all over the world. The Lignocellulosic biomass consists of three major components: cellulose, hemicellulose, and lignin. Cellulose and hemicellulose form a network in which lignin acts as a glue making the cell wall recalcitrant.