Applications of fungal cellulases in biofuel production: Advances and limitations

Neha Srivastava, Manish Srivastava, P.K. Mishra, Vijai K. Gupta, Gustavo Molina, Susana Rodriguez-Couto, Ambepu Manikanta and P.W. Ramteke

Renewable and Sustainable Energy Reviews, 2018, vol. 82, issue P3, 2379-2386

Abstract: Nonrenewable fossil fuels and their serious environmental impact have forced to develop renewable & sustainable energy sources. In this scenario, cellulases have found extensive applications in the biofuel industries. Three main components of the cellulase enzymatic system, namely endoglucanase, exoglucanase and β-glycosidase, effectively convert cellulosic substrates into fermentable sugars. The commercial production of cellulase is currently performed under submerged fermentation (SmF) conditions using mesophilic microbial strains which are non-economic and also non-sustainable. Although, production of fungal cellulases using solid-state fermentation (SSF) is economically advantageous and a preferable route for industrial purposes, it suffers from a few bottlenecks (e.g. scale-up, difficult to control process parameters). Therefore, the present review provides an overview of the cost-effective and present scenario of cellulase production in the biofuel industries including recent advancements. In addition, the current limitations hampering the cost-effective production of cellulase have also been discussed to resolve them in the near future.

Keywords: Biofuel production; Cellulase; Fungi; Fermentable sugars; Solid-state fermentation; Submerged fermentation; Thermal dilution (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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DOI: 10.1016/j.rser.2017.08.074

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