期刊
NATURE REVIEWS MICROBIOLOGY
卷 19, 期 11, 页码 701-715出版社
NATURE PORTFOLIO
DOI: 10.1038/s41579-021-00577-w
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资金
- DOE, Office of Science, Office of Biological and Environmental Research
- DOE, Energy Efficiency and Renewable Energy, Bioenergy Technologies Office
- Co-Optimization of Fuels & Engines project - DOE, Office of Energy Efficiency and Renewable Energy, Bioenergy Technologies Office and Vehicle Technologies Office [DEAC02-05CH11231]
Concerns over climate change have led to a rethinking of transportation infrastructure, with biofuels emerging as a possible alternative to fossil fuels. However, limited uptake of biofuels is attributed to cost and quantity limitations.
Concerns over climate change have necessitated a rethinking of our transportation infrastructure. One possible alternative to carbon-polluting fossil fuels is biofuels produced by engineered microorganisms that use a renewable carbon source. Two biofuels, ethanol and biodiesel, have made inroads in displacing petroleum-based fuels, but their uptake has been limited by the amounts that can be used in conventional engines and by their cost. Advanced biofuels that mimic petroleum-based fuels are not limited by the amounts that can be used in existing transportation infrastructure but have had limited uptake due to costs. In this Review, we discuss engineering metabolic pathways to produce advanced biofuels, challenges with substrate and product toxicity with regard to host microorganisms and methods to engineer tolerance, and the use of functional genomics and machine learning approaches to produce advanced biofuels and prospects for reducing their costs. Biofuels produced by conversion of biomass by engineered microorganisms have the potential to replace fossil fuels and reduce carbon emissions. In this Review, Keasling and colleagues discuss engineering of metabolic pathways to produce advanced biofuels and approaches to reduce metabolite toxicity and cost and increase titre, rate and yield.
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