Enhanced turnover of organic matter fractions by microbial stimulation during lignocellulosic waste composting
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URI: http://hdl.handle.net/10835/15090
ISSN: 0960-8524
DOI: https://doi.org/10.1016/j.biortech.2015.03.059
ISSN: 0960-8524
DOI: https://doi.org/10.1016/j.biortech.2015.03.059
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Jurado Rodríguez, Macarena Del Mar; Suárez Estrella, Francisca; López López, María José; Vargas García, María Del Carmen; López González, Juan Antonio; [et al.]Fecha
2015-03-16Resumen
Enhanced organic matter turnover was detected in lignocellulosic composting piles inoculated with
microorganisms specifically capable of decomposing polymeric compounds. In comparison to uninoculated
piles, the following results were obtained in the inoculated piles: degradation of hemicellulose, cellulose
and lignin were 28%, 21% and 25% respectively higher. Total organic matter, total sugars and
phenolic compounds also decreased more intensely. Greater amounts of soluble organic carbon, reducing
sugars and soluble proteins were available to the composting microbiota. Recycling of organic to
inorganic nitrogen was improved and humification was more intense and earlier attained. Microbial community
structure was also affected by inoculation. It was initially thought that these effects were due to
enzymatic capabilities of inoculants, however, microbial counts, especially those corresponding to functional
groups, revealed that inoculation induced a true stimulation of microbial...
Palabra/s clave
Composting inoculation
Microbial catalysts
Organic matter turnover
Polymeric compounds decomposition
Composting microbiota stimulation