Toward high carbon recovery: Novel strategies to hindering the occurrence of competitive reactions during chain elongation process

Wu, L; Wei, W; Wang, C; Ni, BJ

Toward high carbon recovery: Novel strategies to hindering the occurrence of competitive reactions during chain elongation process

Wu, L

Wei, W

Wang, C Ni, BJ

Permalink

Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Journal of Cleaner Production, 2023, 419
Issue Date:: 2023-09-20

Closed Access

	Filename	Description	Size
	Toward high carbon recovery.pdf	Published version	3.15 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Wu, L https://orcid.org/0000-0001-8581-2937
dc.contributor.author	Wei, W https://orcid.org/0000-0001-5613-337X
dc.contributor.author	Wang, C
dc.contributor.author	Ni, BJ
dc.date.accessioned	2024-04-12T09:23:03Z
dc.date.available	2024-04-12T09:23:03Z
dc.date.issued	2023-09-20
dc.identifier.citation	Journal of Cleaner Production, 2023, 419
dc.identifier.issn	0959-6526
dc.identifier.issn	1879-1786
dc.identifier.uri	http://hdl.handle.net/10453/177859
dc.description.abstract	Productions of medium-chain fatty acids (MCFAs) from waste streams via chain elongation (CE) platforms are conducive to the development of a sustainable society. Open-culture anaerobic fermentation is a promising and cost-effective technique to reclaim MCFAs from waste. Nevertheless, due to the complex microbial structure and the intertwined metabolic interactions, unwanted competing reactions including methanogenesis, excessive ethanol oxidation (EEO) and acrylate pathways always persist in the fermentation systems. Successful production of MCFAs requires the suppression of these competing reactions that could consume the substrate or byproduct used for CE process. Aiming to enhance the production of such higher-value liquids, multiple strategies have been proposed to hinder the occurrence of these undesired reactions in open-culture systems. Compared to the MCFAs productions, the roles of competitive reactions in CE processes are less well elucidated and have never been specifically reviewed before. To this end, this review first gave a general overview of CE pathways at first, followed by the introduction of the common competitive reactions that existed in the fermentation systems. Both conventional and emerging strategies to prevent competing reactions from occurring were examined in detail from the aspects of mechanisms, practicability, and the potential for improvements. The outlook for strategies with better technical feasibility was then put forward to ensure more carbon is shunted to MCFAs productions rather than wasted via competitive reactions.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation	http://purl.org/au-research/grants/arc/DP220101139
dc.relation	http://purl.org/au-research/grants/arc/DE220100530
dc.relation.ispartof	Journal of Cleaner Production
dc.relation.isbasedon	10.1016/j.jclepro.2023.138340
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0907 Environmental Engineering, 0910 Manufacturing Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	Environmental Sciences
dc.subject.classification	33 Built environment and design
dc.subject.classification	40 Engineering
dc.title	Toward high carbon recovery: Novel strategies to hindering the occurrence of competitive reactions during chain elongation process
dc.type	Journal Article
utslib.citation.volume	419
utslib.for	0907 Environmental Engineering
utslib.for	0910 Manufacturing Engineering
utslib.for	0915 Interdisciplinary Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2024-04-12T09:23:01Z
pubs.publication-status	Published
pubs.volume	419

Abstract:

Productions of medium-chain fatty acids (MCFAs) from waste streams via chain elongation (CE) platforms are conducive to the development of a sustainable society. Open-culture anaerobic fermentation is a promising and cost-effective technique to reclaim MCFAs from waste. Nevertheless, due to the complex microbial structure and the intertwined metabolic interactions, unwanted competing reactions including methanogenesis, excessive ethanol oxidation (EEO) and acrylate pathways always persist in the fermentation systems. Successful production of MCFAs requires the suppression of these competing reactions that could consume the substrate or byproduct used for CE process. Aiming to enhance the production of such higher-value liquids, multiple strategies have been proposed to hinder the occurrence of these undesired reactions in open-culture systems. Compared to the MCFAs productions, the roles of competitive reactions in CE processes are less well elucidated and have never been specifically reviewed before. To this end, this review first gave a general overview of CE pathways at first, followed by the introduction of the common competitive reactions that existed in the fermentation systems. Both conventional and emerging strategies to prevent competing reactions from occurring were examined in detail from the aspects of mechanisms, practicability, and the potential for improvements. The outlook for strategies with better technical feasibility was then put forward to ensure more carbon is shunted to MCFAs productions rather than wasted via competitive reactions.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/177859