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Co-culture strategies for increased biohydrogen production.

Pachapur, Vinayak Laxman; Sarma, Saurabh Jyoti; Brar, Satinder Kaur; Le Bihan, Yann; Soccol, Carlos Ricardo; Buelna, Gerardo; Verma, Mausam P. (2015). Co-culture strategies for increased biohydrogen production. International Journal of Energy Research , vol. 39 , nº 11. p. 1479-1504. DOI: 10.1002/er.3364.

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Résumé

Biological hydrogen production from organic wastes is a less expensive, less energy-demanding, and environmental-friendly process. Pure monoculture delivers low H₂ content and low yield; these limitations are overcome by a defined co-culture system, which outperforms mixed cultures with increased H₂ yield. The strategies used in co-culture systems for increasing H₂ production have been discussed in this review. The strategies include hydrolysis of a variety of complex substrates, such as cellulose, molasses, crude glycerol, and algal biomass into simple fermentable sugars for increased H₂ yield by eliminating the use of exogenous enzymes. The strategies can bring geographically distant isolated microorganisms from different sources to coexist for simultaneous utilization of substrate and end metabolites into H₂ production of 99.99% purity without the expenses of reducing agents. In the case of maximum hydrogen production using co-culture strategies, Clostridium, Enterobacter, and photo-fermenting bacteria in a consolidated bioprocess system will result in increased H₂ yield. A co-culture system is more feasible to achieve theoretical H₂ yield with high conversion efficiency of organic wastes, enhance the economic viability of H₂ production, provide better effluent treatment quality, and concurrently address the limitations of H₂ production.

Type de document: Article
Mots-clés libres: co-culture; dark fermentation; hydrogen; monoculture; photo-fermentation
Centre: Centre Eau Terre Environnement
Date de dépôt: 23 avr. 2018 16:04
Dernière modification: 23 avr. 2018 16:04
URI: http://espace.inrs.ca/id/eprint/3899

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