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Towards a Microbial Thermoelectric Cell

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Towards a Microbial Thermoelectric Cell

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dc.contributor.author Rodríguez-Barreiro, Raúl es_ES
dc.contributor.author Abendroth, Christian es_ES
dc.contributor.author Vilanova Serrador, Cristina es_ES
dc.contributor.author Moya, Andrés es_ES
dc.contributor.author Porcar, Manuel es_ES
dc.date.accessioned 2015-06-18T12:27:01Z
dc.date.available 2015-06-18T12:27:01Z
dc.date.issued 2013 es_ES
dc.identifier.citation PLoS ONE Vol. 8 Issue 2: es_ES
dc.identifier.uri http://hdl.handle.net/10550/44457
dc.description.abstract Microbial growth is an exothermic process. Biotechnological industries produce large amounts of heat, usually considered an undesirable by-product. In this work, we report the construction and characterization of the first microbial thermoelectric cell (MTC), in which the metabolic heat produced by a thermally insulated microbial culture is partially converted into electricity through a thermoelectric device optimized for low ΔT values. A temperature of 41°C and net electric voltage of around 250–600 mV was achieved with 1.7 L baker’s yeast culture. This is the first time microbial metabolic energy has been converted into electricity with an ad hoc thermoelectric device. These results might contribute towards developing a novel strategy to harvest excess heat in the biotechnology industry, in processes such as ethanol fermentation, auto thermal aerobic digestion (ATAD) or bioremediation, which could be coupled with MTCs in a single unit to produce electricity as a valuable by-product of the primary biotechnological product. Additionally, we propose that small portable MTCs could be conceived and inoculated with suitable thermophilic of hyperthermophilic starter cultures and used for powering small electric devices. es_ES
dc.title Towards a Microbial Thermoelectric Cell es_ES
dc.type journal article es_ES
dc.identifier.doi 10.1371/journal.pone.0056358 es_ES
dc.identifier.idgrec 083674 es_ES

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