Articles producció científica> Enginyeria Química

Biohydrogen production from glycerol using Thermotoga spp.

  • Identification data

    Identifier: PC:219
    Handle: https://hdl.handle.net/20.500.11797/PC219
    Authors:
    Medina, F.Constantí, M.Kengen, S.W.M.Bielen. A.A.M.Maru B.
    Abstract:
    10.1016/j.egypro.2012.09.036

  • Others:

    Author, as appears in the article.: Medina, F. Constantí, M. Kengen, S.W.M. Bielen. A.A.M. Maru B.
    Papper version: info:eu-repo/semantics/publishedVersion
    Department: Enginyeria Química
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Abstract: Given the highly reduced state of carbon in glycerol and its availability as a substantial byproduct of biodiesel production, glycerol is of special interest for sustainable biofuel production. Glycerol was used as a substrate for biohydrogen production using the hyperthermophilic bacterium, Thermotoga maritima and Thermotoga neapolitana. Both species metabolized glycerol to mainly acetate and hydrogen. At glycerol concentrations of 2.5 g/L, hydrogen was produced with a yield of 2.75 and 2.65 mol H2/mol glycerol consumed by T. maritima and T. neapolitana respectively. Additionally, the effect of initial pH (ranging between pH 5.0-8.5) and yeast extract concentrations (0.5, 1, 2, 4 g/L) on glycerol fermentation by T. neapolitana was investigated in batch systems. An initial pH value of around 7 was optimal for hydrogen production by T. neapolitana. Lower concentration of yeast extract resulted in a lower H2 production, however increasing the concentration from 2 to 4 g/L did not affect H2 production.
    Entity: Universitat Rovira i Virgili.
    Journal publication year: 2012
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 1876-6102
    First page: 300
    Last page: 307
    Journal volume: 29