Obtaining Fermentable Sugars from a Highly Productive Elm Clone Using Different Pretreatments
| Autor: | Manuel J. Díaz, David Ibarra, María E. Eugenio, Raquel Martín-Sampedro, Laura Jiménez-López, Juan Antonio González Martín |
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| Přispěvatelé: | Comunidad de Madrid, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, Ibarra, David, Martín-Sampedro, Raquel, Martín, Juan A., Díaz, Manuel J., Eugenio, María E.0000-0003-4550-5400], Ibarra, David [0000-0003-3001-7308], Martín-Sampedro, Raquel [0000-0003-2083-3723], Martín, Juan A. [0000-0002-3207-1319], Díaz, Manuel J. [0000-0002-5059-4340] |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Control and Optimization Organosolv Energy Engineering and Power Technology Xylose chemistry.chemical_compound Hydrolysis Enzymatic hydrolysis Lignin Hemicellulose Food science Electrical and Electronic Engineering Engineering (miscellaneous) Ademuz elm clone Renewable Energy Sustainability and the Environment Extraction (chemistry) food and beverages Fermentable sugars biomass production enzymatic hydrolysis fermentable sugars pretreatment Pre-treatment Biomass production chemistry Acid hydrolysis Pretreatment Energy (miscellaneous) |
| Zdroj: | Energies, Vol 14, Iss 2415, p 2415 (2021) Energies; Volume 14; Issue 9; Pages: 2415 Arias Montano. Repositorio Institucional de la Universidad de Huelva Consejo Superior de Investigaciones Científicas (CSIC) Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | 21 Págs. This article belongs to the Special Issue Latest Progress in Lignocellulosic Bioethanol Production The interest of supplying lignocellulosic materials for producing fermentable sugars has recently emerged in order to diminish the negative environmental effects of fossil fuels. In this study, the Ulmus minor clone Ademuz, characterized for its tolerance to Dutch elm disease and its rapid growth, was evaluated as a source of fermentable sugars. For that, different pretreatments, comprising autohydrolysis, dilute acid hydrolysis, acid catalyzed organosolv, and alkaline extraction, were evaluated at two levels of severity (pretreatment temperatures at 160◦ C and 180◦ C, except for alkaline extraction at 80◦ C and 160◦ C); and the resulting pretreated materials were enzymatically hydrolyzed for fermentable sugars production. The major extraction of lignin and hemicellulose was achieved during organosolv (48.9%, lignin; 77.9%, hemicellulose) and acid hydrolysis (39.2%, lignin; 95.0%, hemicellulose) at 180◦ C, resulting in the major enzymatic digestibility (67.7%, organosolv; 53.5% acid hydrolysis). Contrarily, under the most favorable conditions for autohydrolysis (180◦ C) and alkaline extraction (160◦ C), lower extraction of lignin and hemicellulose was produced (4.8%, lignin; 67.2%, hemicellulose, autohydrolysis; 22.6%, lignin; 33.1%, hemicellulose, alkaline extraction), leading to lower enzymatic digestibility (32.1%, autohydrolysis; 39.2%, alkaline extraction). Tak-ing into account the sugars produced during enzymatic hydrolysis of pretreated materials and the solubilized sugars from pretreatment liquors, the highest sugars (glucose and xylose) yield production (28.1%) per gram of biomass from U. minor clone Ademuz was achieved with acid catalyzed organosolv at 180◦ C. This research was funded by Comunidad de Madrid and MCIU/AEI/FEDER, UE via grant number SUSTEC-CM S2018/EMT-4348 and RTI2018-096080-B-C22, respectively. Raquel Martín Sampedro acknowledges an IJCI contract (IJCI-2016-28403). |
| Databáze: | OpenAIRE |
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