Bio-processing of agricultural residues to bio-fuels using Neurospora discreta

The use of lignocellulosic agricultural residues for production of biofuels can address two pressing concerns of waste treatment and energy crisis simultaneously. However, the lignin present in these residues poses a challenge due to its recalcitrance, resulting in low overall yields despite using multi-step processes employing strong chemicals or high energy input to degrade the lignin.

‘Complete bioprocessing’ of agricultural residues using microorganisms is in its nascent stages of development and offers a promising alternative to existing processes. In our lab, we have found that a locally isolated fungus, Neurospora discreta can be used for such a process as it has the enzymatic machinery required for complete degradation of lignocellulosic biomass and producing not only ethanol but also carotenoids which can serve as a value added product.

A proof of concept study for complete bioprocessing of two types of agricultural residues using N. discreta is discussed here.