Chemical, Thermal and Spectroscopic Methods to Assess Biodegradation of Winery-Distillery Wastes during Composting

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Title: Chemical, Thermal and Spectroscopic Methods to Assess Biodegradation of Winery-Distillery Wastes during Composting
Authors: Torres-Climent, Ángel | Gomis, P. | Martín-Mata, Julio | Bustamante, María A. | Marhuenda Egea, Frutos Carlos | Pérez-Murcia, María Dolores | Pérez-Espinosa, Aurelia | Paredes, Concepción | Moral, Raúl
Research Group/s: Grupo de Fotoquímica y Electroquímica de Semiconductores (GFES)
Center, Department or Service: Universidad de Alicante. Departamento de Agroquímica y Bioquímica
Keywords: Composting process | Wastes | Winery and distillery industry | Biodegradation
Knowledge Area: Bioquímica y Biología Molecular
Issue Date: 29-Sep-2015
Publisher: Public Library of Science (PLoS)
Citation: Torres-Climent A, Gomis P, Martín-Mata J, Bustamante MA, Marhuenda-Egea FC, Pérez-Murcia MD, et al. (2015) Chemical, Thermal and Spectroscopic Methods to Assess Biodegradation of Winery-Distillery Wastes during Composting. PLoS ONE 10(9): e0138925. doi:10.1371/journal.pone.0138925
Abstract: The objective of this work was to study the co-composting process of wastes from the winery and distillery industry with animal manures, using the classical chemical methods traditionally used in composting studies together with advanced instrumental methods (thermal analysis, FT-IR and CPMAS 13C NMR techniques), to evaluate the development of the process and the quality of the end-products obtained. For this, three piles were elaborated by the turning composting system, using as raw materials winery-distillery wastes (grape marc and exhausted grape marc) and animal manures (cattle manure and poultry manure). The classical analytical methods showed a suitable development of the process in all the piles, but these techniques were ineffective to study the humification process during the composting of this type of materials. However, their combination with the advanced instrumental techniques clearly provided more information regarding the turnover of the organic matter pools during the composting process of these materials. Thermal analysis allowed to estimate the degradability of the remaining material and to assess qualitatively the rate of OM stabilization and recalcitrant C in the compost samples, based on the energy required to achieve the same mass losses. FT-IR spectra mainly showed variations between piles and time of sampling in the bands associated to complex organic compounds (mainly at 1420 and 1540 cm-1) and to nitrate and inorganic components (at 875 and 1384 cm-1, respectively), indicating composted material stability and maturity; while CPMAS 13C NMR provided semi-quantitatively partition of C compounds and structures during the process, being especially interesting their variation to evaluate the biotransformation of each C pool, especially in the comparison of recalcitrant C vs labile C pools, such as Alkyl /O-Alkyl ratio.
Sponsor: This work was supported by a contract to MABM, Spanish Ministry of Economy and Competitiveness (Plan Nacional de Investigación Científica, Desarrollo e Innovación Tecnológica (I+D+i) 2008-2011), co-funded by the EU through the Social Funds (contract reference PTQ-12-05655).
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0138925
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2015 Torres-Climent et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Peer Review: si
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