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Resource Recovery Potential From Lignocellulosic Feedstock Upon Lysis With Ionic Liquids
Lignocellulosic residues from energy crops offer a high potential to recover bioproducts and biofuels that can be used as raw matter for agriculture activities within a circular economy framework. Anaerobic digestion (AD) is a well-established driver to convert these residues into energy and bioprod...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6134079/ https://www.ncbi.nlm.nih.gov/pubmed/30234105 http://dx.doi.org/10.3389/fbioe.2018.00119 |
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author | Padrino, Beatriz Lara-Serrano, Marta Morales-delaRosa, Silvia Campos-Martín, José M. Fierro, José Luis García Martínez, Fernando Melero, Juan Antonio Puyol, Daniel |
author_facet | Padrino, Beatriz Lara-Serrano, Marta Morales-delaRosa, Silvia Campos-Martín, José M. Fierro, José Luis García Martínez, Fernando Melero, Juan Antonio Puyol, Daniel |
author_sort | Padrino, Beatriz |
collection | PubMed |
description | Lignocellulosic residues from energy crops offer a high potential to recover bioproducts and biofuels that can be used as raw matter for agriculture activities within a circular economy framework. Anaerobic digestion (AD) is a well-established driver to convert these residues into energy and bioproducts. However, AD of lignocellulosic matter is slow and yields low methane potential, and therefore several pre-treatment methods have been proposed to increase the energy yield of this process. Hereby, we have assessed the pre-treatment of lignocellulosic biomass (barley straw) with the ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate and its effect on the biochemical methane potential (BMP). The BMP of the residue was evaluated at different inoculum to substrate (I/S) ratios and working under meso and thermophilic conditions. Solids destruction upon AD is highly enhanced by the IL-pretreatment. This also resulted in a higher BMP, both in mesophilic as well as thermophilic conditions. At the optimum I/S ratio of 2:1 (dried weight, dw), the BMP of the IL-pre-treated feedstock increased 28 and 80% for 35 days of thermophilic and mesophilic AD, respectively, as compared to the fresh feedstock, achieving values of 364 and 412 LCH(4)/kgTS. We also explored the effect of this pretreatment on the phosphorus recovery potential from the digestate upon release from the AD process. Thermophilic anaerobic digestion of IL-pre-treated biomass provided the highest P recovery potential from lignocellulosic residues (close to 100% of the theoretical P content of the lignocellulosic feedstock). Therefore, the pretreatment of lignocellulosic feedstock with IL before AD is a promising platform to obtain bioenergy and recover P to be regained for the agriculture sector. |
format | Online Article Text |
id | pubmed-6134079 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-61340792018-09-19 Resource Recovery Potential From Lignocellulosic Feedstock Upon Lysis With Ionic Liquids Padrino, Beatriz Lara-Serrano, Marta Morales-delaRosa, Silvia Campos-Martín, José M. Fierro, José Luis García Martínez, Fernando Melero, Juan Antonio Puyol, Daniel Front Bioeng Biotechnol Bioengineering and Biotechnology Lignocellulosic residues from energy crops offer a high potential to recover bioproducts and biofuels that can be used as raw matter for agriculture activities within a circular economy framework. Anaerobic digestion (AD) is a well-established driver to convert these residues into energy and bioproducts. However, AD of lignocellulosic matter is slow and yields low methane potential, and therefore several pre-treatment methods have been proposed to increase the energy yield of this process. Hereby, we have assessed the pre-treatment of lignocellulosic biomass (barley straw) with the ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate and its effect on the biochemical methane potential (BMP). The BMP of the residue was evaluated at different inoculum to substrate (I/S) ratios and working under meso and thermophilic conditions. Solids destruction upon AD is highly enhanced by the IL-pretreatment. This also resulted in a higher BMP, both in mesophilic as well as thermophilic conditions. At the optimum I/S ratio of 2:1 (dried weight, dw), the BMP of the IL-pre-treated feedstock increased 28 and 80% for 35 days of thermophilic and mesophilic AD, respectively, as compared to the fresh feedstock, achieving values of 364 and 412 LCH(4)/kgTS. We also explored the effect of this pretreatment on the phosphorus recovery potential from the digestate upon release from the AD process. Thermophilic anaerobic digestion of IL-pre-treated biomass provided the highest P recovery potential from lignocellulosic residues (close to 100% of the theoretical P content of the lignocellulosic feedstock). Therefore, the pretreatment of lignocellulosic feedstock with IL before AD is a promising platform to obtain bioenergy and recover P to be regained for the agriculture sector. Frontiers Media S.A. 2018-09-05 /pmc/articles/PMC6134079/ /pubmed/30234105 http://dx.doi.org/10.3389/fbioe.2018.00119 Text en Copyright © 2018 Padrino, Lara-Serrano, Morales-delaRosa, Campos-Martín, Fierro, Martínez, Melero and Puyol. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Bioengineering and Biotechnology Padrino, Beatriz Lara-Serrano, Marta Morales-delaRosa, Silvia Campos-Martín, José M. Fierro, José Luis García Martínez, Fernando Melero, Juan Antonio Puyol, Daniel Resource Recovery Potential From Lignocellulosic Feedstock Upon Lysis With Ionic Liquids |
title | Resource Recovery Potential From Lignocellulosic Feedstock Upon Lysis With Ionic Liquids |
title_full | Resource Recovery Potential From Lignocellulosic Feedstock Upon Lysis With Ionic Liquids |
title_fullStr | Resource Recovery Potential From Lignocellulosic Feedstock Upon Lysis With Ionic Liquids |
title_full_unstemmed | Resource Recovery Potential From Lignocellulosic Feedstock Upon Lysis With Ionic Liquids |
title_short | Resource Recovery Potential From Lignocellulosic Feedstock Upon Lysis With Ionic Liquids |
title_sort | resource recovery potential from lignocellulosic feedstock upon lysis with ionic liquids |
topic | Bioengineering and Biotechnology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6134079/ https://www.ncbi.nlm.nih.gov/pubmed/30234105 http://dx.doi.org/10.3389/fbioe.2018.00119 |
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