Lignin, a recalcitrant compound, forms very strong
complexes with cellulose and hemicelluloses in plant materials,
which serves as substrate for biofuels. Delignification of these
substrates to yield pentose and hexose sugars is usually overcome
by mechanical or chemical pretreatment methods. These methods
generate toxic byproducts which inhibit the further processing of
substrates. Bacterial enzymes, gene manipulations, medium
formulations and synergistic effects of mixed cultures of bacteria
offer better degradation of lignin. This method of biodegradation
could serve as a cost effective and ecofriendly method towards
production of second generation biofuels.
Keywords : Lignin; Biodegradation; Lignocellulose; Biofuel; Bacteria; Actinomycetes.