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| Content Provider | Springer Nature Link |
|---|---|
| Author | Bastidas Oyanedel, Juan Rodrigo Bonk, Fabian Thomsen, Mette Hedegaard Schmidt, Jens Ejbye |
| Copyright Year | 2015 |
| Abstract | Dark fermentation, also known as acidogenesis, involves the transformation of a wide range of organic substrates into a mixture of products, e.g. acetic acid, butyric acid and hydrogen. This bioprocess occurs in the absence of oxygen and light. The ability to synthesize hydrogen, by dark fermentation, has raised its scientific attention. Hydrogen is a non-polluting energy carrier molecule. However, for energy generation, there is a variety of other sustainable alternatives to hydrogen energy, e.g. solar, wind, tide, hydroelectric, biomass incineration, or nuclear fission. Nevertheless, dark fermentation appears as an important sustainable process in another area: the synthesis of valuable chemicals, i.e. an alternative to petrochemical refinery. Currently, acetic acid, butyric acid and hydrogen are mostly produced by petrochemical reforming, and they serve as precursors of ubiquitous petrochemical derived products. Hence, the future of dark fermentation relies as a core bioprocess in the biorefinery concept. The present article aims to present and discuss the current and future status of dark fermentation in the biorefinery concept. The first half of the article presents the metabolic pathways, product yields and its technological importance, microorganisms responsible for mixed dark fermentation, and operational parameters, e.g. substrates, pH, temperature and head-space composition, which affect dark fermentation. The minimal selling price of dark fermentation products is also presented in this section. The second half discusses the perspectives and future of dark fermentation as a core bioprocess. The relationship of dark fermentation with other (bio)processes, e.g. liquid fuels and fine chemicals, algae cultivation, biomethane–biohythane–biosyngas production, and syngas fermentation, is then explored. |
| Starting Page | 473 |
| Ending Page | 498 |
| Page Count | 26 |
| File Format | |
| ISSN | 15691705 |
| Journal | Reviews in Environmental Science and Biotechnology |
| Volume Number | 14 |
| Issue Number | 3 |
| e-ISSN | 15729826 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2015-07-24 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Dark fermentation Biorefinery Organic residues Organic acids Volatile acids Mixed culture fermentation Acidogenesis Carboxylate platform Environmental Engineering/Biotechnology Microbiology Atmospheric Protection/Air Quality Control/Air Pollution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Pollution Environmental Engineering Applied Microbiology and Biotechnology |
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