Journal
ENVIRONMENTAL TECHNOLOGY & INNOVATION
Volume 24, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.eti.2021.102080
Keywords
Pretreatment; Saccharification; Biofuels; Lignocellulose; Techno-economic; Environmental aspect
Funding
- Department of Biotechnology, India under initiative Mission innovation Challenge Scheme (IC4)
- project entitled A novel integrated biorefinery for conversion of lignocellulosic agro waste into value added products and bioenergy [BT/PR31054/PBD/26/763/2019]
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Lignocellulose biomass is a prevalent and economic substrate for biofuel production, but the presence of refractory components in biomass poses obstacles in enzymatic hydrolysis, which can be improved through advanced pretreatment technology. Suitable pretreatment enhances hydrolysis by converting polymeric substances into monomers, making biomass more accessible for enzymes and enhancing fermentation. Optimization of integrated pretreatment for biofuel production is necessary in terms of economic and environmental aspects to replace fossil fuels.
Lignocellulose biomass is considered to be the prevalent and economic substrate for biofuel generation. The presence of certain refractory components in biomass causes major obstacle in enzymatic hydrolysis and thus it has to be improved by the advancement of pretreatment technology. The pretreatment focused on the enhancement of hydrolysis by altering the polymeric substance into monomers. A suitable pretreatment converts the biomass into easily accessible components for enzymes and thus enhances fermentation during biofuel production. Notwithstanding the research and development activities focused towards the goalmouth and the integrated pretreatment for biofuel production are needed to be optimised in terms of economic and environmental way. The problems associated with the economic and environmental distress focused on enormous research for several decades in order to replace fossil fuels with the lignocellulosic feedstock. The various approaches were implemented in lignocellulose based biofuel production by concerning the net cost and the energy demand by upgrading the process design. In present review, the pretreatment technologies for biofuel production from lignocellulosic feedstock are discussed along with the inhibitory compounds generations during pretreatment. Furthermore, the energy demand on pretreatment and the techno-economic and environmental aspects were discussed. This review highlights the major aspects in biorefinery process which includes the pretreatment and saccharification of sugar and lignin into biofuels. (C) 2021 The Authors. Published by Elsevier B.V.
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