Consolidated Bioprocessing for Biofuel Production
Summary
Consolidated bioprocessing (CBP) integrates enzyme generation, substrate hydrolysis and microbial fermentation in a single reactor, thereby reducing operational steps and lowering production costs for biofuels. By employing either specially engineered microorganisms or defined microbial consortia, CBP directly converts lignocellulosic biomass—comprised of cellulose, hemicellulose and lignin—into ethanol, butanol or other biofuels without separate pretreatment or enzyme addition. The approach addresses key economic barriers associated with enzyme procurement and process complexity, while offering a route to valorise agricultural residues and energy crops. Advances in metabolic engineering have extended the product spectrum beyond ethanol to include higher alcohols, and co-cultivation strategies have demonstrated synergistic interactions between cellulolytic strains and solventogenic partners. Thermophilic and mesophilic systems alike are under investigation, with efforts focused on improving substrate accessibility, enhancing microbial tolerance to inhibitors and optimising product titres. The technology holds global significance by enabling decentralised, cost-effective biorefineries that contribute to decarbonisation and energy security.
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Consolidated Bioprocessing for Biofuel Production publication trend
The graph below shows the total number of articles in consolidated bioprocessing for biofuel production across all publications each year (not limited to Nature Index journals).
Technical terms
Consolidated Bioprocessing (CBP): Integration of enzyme secretion, biomass hydrolysis and fermentation into a unified operation.
Lignocellulosic biomass: Plant-derived material composed of cellulose, hemicellulose and lignin, used as a renewable feedstock.
Co-culture: Deliberate cultivation of two or more microbial species to exploit complementary metabolic functions.
Cellulolytic enzymes: Catalysts such as cellulases and hemicellulases that depolymerise complex carbohydrates into fermentable sugars.
Metabolic engineering: Genetic modification of organisms to optimise biochemical pathways for enhanced product formation.
References
- Microbial co-cultures for biochemicals production from lignocellulosic biomass: A review. Bioresource Technology (2023).
- Consolidated bioprocessing of butanol production from xylan by a thermophilic and butanologenic Thermoanaerobacterium sp. M5. Biotechnology for Biofuels and Bioproducts (2018).
- Improved n-Butanol Production from Clostridium cellulovorans by Integrated Metabolic and Evolutionary Engineering. Applied and Environmental Microbiology (2019).
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