Enzymatic characterization of microbial isolates from lignocellulose waste composting: Chronological evolution
Identificadores
URI: http://hdl.handle.net/10835/14962
ISSN: 0301-4797
DOI: https://doi.org/10.1016/j.jenvman.2014.06.019
ISSN: 0301-4797
DOI: https://doi.org/10.1016/j.jenvman.2014.06.019
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López González, Juan Antonio; Vargas García, María Del Carmen; López, María José; Suárez Estrella, Francisca; Jurado Rodríguez, Macarena Del Mar; [et al.]Fecha
2014-06-19Resumen
Successful composting is dependent upon microbial performance. An interdependent relationship is
established between environmental and nutritional properties that rule the process and characteristics
of the dominant microbial communities. To reach a better understanding of this relationship, the dynamics
of major metabolic activities associated with cultivable isolates according to composting phases
were evaluated. Ammonification (72.04%), amylolysis (35.65%), hemicellulolyis (30.75%), and proteolysis
(33.61%) were the more frequent activities among isolates, with mesophilic bacteria and fungi as the
prevalent microbial communities. Bacteria were mainly responsible for starch hydrolysis, while a higher
percentage of hemicellulolytic and proteolytic isolates were ascribable to fungi. Composting seems to
exert a functional selective effect on microbial communities by promoting the presence of specific
metabolically dominant groups at each stage of the process. Moreover, the appl...
Palabra/s clave
Composting phases
Culturable microbiota
Enzymatic capabilities
Microbial communities