Creating Value from Acidogenic Biohydrogen Fermentation Effluents: An Innovative Approach for a Circular Bioeconomy That Is Acquired via a Microbial Biorefinery-Based Framework
As a response to the environmental and societal issues that emanate from the high reliance on fossil fuels, the world is now transitioning toward a circular bioeconomy. Acidogenic biohydrogen production is envisaged as a clean fuel of the future due to its non-polluting features and affordability. T...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Fermentation |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2311-5637/9/7/602 |
| _version_ | 1797589372362555392 |
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| author | Patrick T. Sekoai Viren Chunilall Obinna Ezeokoli |
| author_facet | Patrick T. Sekoai Viren Chunilall Obinna Ezeokoli |
| author_sort | Patrick T. Sekoai |
| collection | DOAJ |
| description | As a response to the environmental and societal issues that emanate from the high reliance on fossil fuels, the world is now transitioning toward a circular bioeconomy. Acidogenic biohydrogen production is envisaged as a clean fuel of the future due to its non-polluting features and affordability. The major encumbrance for the industrialization of this process is due to the accumulation of metabolic inhibitors (volatile fatty acids (VFAs)), which lower the H<sub>2</sub> yields. This review discusses novel methods that can be adopted to valorize the acidogenic VFAs via a “cascade microbial biorefinery-based” approach that enables this process to be economically feasible as it leads to the concomitant production of diverse high-value-added products. The work also elucidates the key setpoint parameters governing the recovery of VFAs during the acidogenic H<sub>2</sub> process. It further explores the recent advances in the use of VFAs in microbial biorefineries. Finally, the paper provides some recommendations that might help develop acidogenic microbial biorefineries in the future. Studies focusing on microbial biorefineries tailored towards the valorization/beneficiation of acidogenic VFAs are very scarce in the literature. This work aims to provide new insights into microbial biorefinery-based processes involving the use of acidogenic VFAs as substrates. |
| first_indexed | 2024-03-11T01:05:41Z |
| format | Article |
| id | doaj.art-6e25d4fcc459459289107c1e69e1c8d6 |
| institution | Directory Open Access Journal |
| issn | 2311-5637 |
| language | English |
| last_indexed | 2024-03-11T01:05:41Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fermentation |
| spelling | doaj.art-6e25d4fcc459459289107c1e69e1c8d62023-11-18T19:15:44ZengMDPI AGFermentation2311-56372023-06-019760210.3390/fermentation9070602Creating Value from Acidogenic Biohydrogen Fermentation Effluents: An Innovative Approach for a Circular Bioeconomy That Is Acquired via a Microbial Biorefinery-Based FrameworkPatrick T. Sekoai0Viren Chunilall1Obinna Ezeokoli2Biorefinery Industry Development Facility, Council for Scientific and Industrial Research, Durban 4041, South AfricaBiorefinery Industry Development Facility, Council for Scientific and Industrial Research, Durban 4041, South AfricaUnit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South AfricaAs a response to the environmental and societal issues that emanate from the high reliance on fossil fuels, the world is now transitioning toward a circular bioeconomy. Acidogenic biohydrogen production is envisaged as a clean fuel of the future due to its non-polluting features and affordability. The major encumbrance for the industrialization of this process is due to the accumulation of metabolic inhibitors (volatile fatty acids (VFAs)), which lower the H<sub>2</sub> yields. This review discusses novel methods that can be adopted to valorize the acidogenic VFAs via a “cascade microbial biorefinery-based” approach that enables this process to be economically feasible as it leads to the concomitant production of diverse high-value-added products. The work also elucidates the key setpoint parameters governing the recovery of VFAs during the acidogenic H<sub>2</sub> process. It further explores the recent advances in the use of VFAs in microbial biorefineries. Finally, the paper provides some recommendations that might help develop acidogenic microbial biorefineries in the future. Studies focusing on microbial biorefineries tailored towards the valorization/beneficiation of acidogenic VFAs are very scarce in the literature. This work aims to provide new insights into microbial biorefinery-based processes involving the use of acidogenic VFAs as substrates.https://www.mdpi.com/2311-5637/9/7/602acidogenic biohydrogen effluentsvolatile fatty acidsvalorizationcircular bioeconomy |
| spellingShingle | Patrick T. Sekoai Viren Chunilall Obinna Ezeokoli Creating Value from Acidogenic Biohydrogen Fermentation Effluents: An Innovative Approach for a Circular Bioeconomy That Is Acquired via a Microbial Biorefinery-Based Framework Fermentation acidogenic biohydrogen effluents volatile fatty acids valorization circular bioeconomy |
| title | Creating Value from Acidogenic Biohydrogen Fermentation Effluents: An Innovative Approach for a Circular Bioeconomy That Is Acquired via a Microbial Biorefinery-Based Framework |
| title_full | Creating Value from Acidogenic Biohydrogen Fermentation Effluents: An Innovative Approach for a Circular Bioeconomy That Is Acquired via a Microbial Biorefinery-Based Framework |
| title_fullStr | Creating Value from Acidogenic Biohydrogen Fermentation Effluents: An Innovative Approach for a Circular Bioeconomy That Is Acquired via a Microbial Biorefinery-Based Framework |
| title_full_unstemmed | Creating Value from Acidogenic Biohydrogen Fermentation Effluents: An Innovative Approach for a Circular Bioeconomy That Is Acquired via a Microbial Biorefinery-Based Framework |
| title_short | Creating Value from Acidogenic Biohydrogen Fermentation Effluents: An Innovative Approach for a Circular Bioeconomy That Is Acquired via a Microbial Biorefinery-Based Framework |
| title_sort | creating value from acidogenic biohydrogen fermentation effluents an innovative approach for a circular bioeconomy that is acquired via a microbial biorefinery based framework |
| topic | acidogenic biohydrogen effluents volatile fatty acids valorization circular bioeconomy |
| url | https://www.mdpi.com/2311-5637/9/7/602 |
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