Role of indigenous bacteria in dark fermentation of organic substrates
| Autor: | Nicolas Bernet, Eric Trably, Hélène Carrère, K. Dauptain, G. Santa-Catalina |
|---|---|
| Přispěvatelé: | Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), ANR-16-IDEX-0006 Initiatives d'excellence (IDEX/ISITE),MUSE,Ecosystèmes d'excellence |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Enterobacteriales Environmental Engineering Exogenous bacteria Bioengineering 010501 environmental sciences 01 natural sciences Bioreactors Thermal pretreatment 010608 biotechnology Biohydrogen Food science Waste Management and Disposal 0105 earth and related environmental sciences Hydrogen production Indigenous bacteria biology Bacteria Renewable Energy Sustainability and the Environment Chemistry [SDE.IE]Environmental Sciences/Environmental Engineering Clostridiales food and beverages General Medicine Biodegradable waste Dark fermentation biology.organism_classification Fermentation Inoculum Hydrogen |
| Zdroj: | Bioresource Technology Bioresource Technology, Elsevier, 2020, 313, pp.123665. ⟨10.1016/j.biortech.2020.123665⟩ |
| ISSN: | 1873-2976 0960-8524 |
| DOI: | 10.1016/j.biortech.2020.123665⟩ |
| Popis: | International audience; Hydrogen production by dark fermentation of complex organic substrates, such as biowaste, can naturally take place with indigenous bacteria or by adding an external microbial inoculum issued from various natural environments. This study aims to determine whether indigenous bacteria associated with thermal pretreatment could impact dark fermentation performances. Biochemical hydrogen potential tests were carried out on seven organic substrates. Results showed a strong influence of the indigenous bacteria which are as effective as thermally pretreated exogenous bacteria to produce H2 and metabolites. High abundance in Clostridiales and/or Enterobacteriales was associated with high H2 yield. This study shows that no inoculum nor pretreatment are required to achieve satisfactory dark fermentation performances from organic waste. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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