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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/23455

    Título
    Valorization of CH4 emissions into high-added-value products: Assessing the production of ectoine coupled with CH4 abatement
    Autor
    Cantera Ruiz De Pellon, SaraAutoridad UVA Orcid
    Lebrero Fernández, RaquelAutoridad UVA Orcid
    Sadornil Delgado, Lidia Jimena
    García Encina, Pedro AntonioAutoridad UVA Orcid
    Muñoz Torre, RaúlAutoridad UVA Orcid
    Año del Documento
    2016
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Journal of Environmental Management, 2016, Volume 182, p. 160–165
    Resumo
    This study assessed an innovative strategy for the valorization of dilute methane emissions based on the bio-conversion of CH4 (the second most important greenhouse gas (GHG)) into ectoine by the methanotrophic ectoine-producing strain Methylomicrobium alcaliphilum 20 Z. The influence of CH4 (2–20%), Cu2+ (0.05–50 μM) and NaCl (0–9%) concentration as well as temperature (25–35 °C) on ectoine synthesis and specific CH4 biodegradation rate was evaluated for the first time. Concentrations of 20% CH4 (at 3% NaCl, 0.05 μM Cu2+, 25 °C) and 6% NaCl (at 4% CH4, 0.05 μM Cu2+, 25 °C) supported the maximum intra-cellular ectoine production yield (31.0 ±1.7 and 66.9 ±4.2 mg g biomass−1, respectively). On the other hand, extra-cellular ectoine concentrations of up to 4.7 ± 0.1 mg L−1 were detected at high Cu2+concentrations (50 μM), despite this methanotroph has not been previously classified as an ectoine-excreting strain. This research demonstrated the feasibility of the bio-conversion of dilute emissions of methane into high-added value products in an attempt to develop a sustainable GHG bioeconomy.
    Palabras Clave
    Gases de efecto invernadero
    Metano
    Revisión por pares
    SI
    DOI
    10.1016/j.jenvman.2016.07.064
    Patrocinador
    Ministerio de Economía, Industria y Competitividad (Proyect CTM2015-70442-R)
    Version del Editor
    www.elsevier.com /locate/jenvman
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/23455
    Derechos
    openAccess
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    Universidad de Valladolid

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