Recent Progress and Trends in the Development of Microbial Biofuels from Solid Waste—A Review

Azimov, Ulugbek, Okoro, Victor and Hernandez, Hector H. (2021) Recent Progress and Trends in the Development of Microbial Biofuels from Solid Waste—A Review. Energies, 14 (19). p. 6011. ISSN 1996-1073

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This review covers the recent progress in the design and application of microbial biofuels, assessing the advancement of genetic engineering undertakings and their marketability, and lignocellulosic biomass pretreatment issues. Municipal solid waste (MSW) is a promising sustainable biofuel feedstock due to its high content of lignocellulosic fiber. In this review, we compared the production of fatty alcohols, alkanes, and n-butanol from residual biogenic waste and the environmental/economic parameters to that of conventional biofuels. New synthetic biology tools can be used to engineer fermentation pathways within micro-organisms to produce long-chain alcohols, isoprenoids, long-chain fatty acids, and esters, along with alkanes, as substitutes to petroleum-derived fuels. Biotechnological advances have struggled to address problems with bioethanol, such as lower energy density compared to gasoline and high corrosive and hygroscopic qualities that restrict its application in present infrastructure. Biofuels derived from the organic fraction of municipal solid waste (OFMSW) may have less environmental impacts compared to traditional fuel production, with the added benefit of lower production costs. Unfortunately, current advanced biofuel production suffers low production rates, which hinders commercial scaling-up efforts. Microbial-produced biofuels can address low productivity while increasing the spectrum of produced bioenergy molecules.

Item Type: Article
Additional Information: Funding information: This work was funded by the Royal Society grant for the International Exchanges Scheme (Project number IES\R2\192108).
Uncontrolled Keywords: advanced biofuels; bacterial fuels; synthetic biology; organic waste biomass; pretreatment; climate change; greenhouse gas emissions
Subjects: F800 Physical and Terrestrial Geographical and Environmental Sciences
H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Elena Carlaw
Date Deposited: 22 Sep 2021 10:11
Last Modified: 22 Sep 2021 10:15

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