Increasing greenhouse gas emissions and diminishing supplies of fossil-derived fuels underline the need for environmentally sustainable energy resources. Lignocellulose, more generically named simply as plant biomass, represent one of the most abundant renewable resources for biofuels. Lignocellulosic biomass from forest residues, agro-wastes and energy grasses is extensively exploited for bioenergy production. This article is protected by copyright. All rights reserved.