78994 20200716101441.0 doi 10.3390/en12091703 sideral 111402 ART-2019-111402 eng Portero Barahona, Patricia Sugarcane bagasse hydrolysis enhancement by microwave-assisted sulfolane pretreatment 2019 Access copy available to the general public Unrestricted Sugarcane bagasse is the major by-product of the sugarcane industry and, due to its abundant availability, it has been extensively studied for lignocellulosic bioconversion in the production of bioethanol and other value-added commercial products. In the study presented herein, a combined pretreatment using sulfolane, TiO2 and alkali microwave irradiation (MW-A) was assessed for the dissolution of lignin prior to enzymatic saccharification of holocellulose. Total reducing sugars (TRS) and saccharinic acid yields were investigated. The increase in NaOH concentration up to 5% and in temperature from 120 °C to 140 °C were found to have a positive influence on both yields. While increasing the reaction time from 5 to 60 min only led to an increase in TRS yield <2%, a reaction time of 30 min almost doubled the saccharinic acids production. TRS yields and saccharinic acid production were approximately 5% and 33% higher when the sulfolane-TiO2 reaction medium was used, as compared to MW-A in water, reaching up to 64.8% and 15.24 g/L of saccharinic acids, respectively. The proposed MW-A pretreatment may hold promise for industrial applications, given the good TRS yields obtained, and the associated enzyme and time/energy savings. The use of sulfolane-TiO2 reaction medium is encouraged if saccharinic acids are to be recovered too. info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.702 2019 0.635 2019 ENERGY & FUELS 63 / 112 = 0.562 2019 Q3 T2 Control and Optimization 2019 Q2 Electrical and Electronic Engineering 2019 Q2 Renewable Energy, Sustainability and the Environment 2019 Q2 Energy Engineering and Power Technology 2019 Q2 Fuel Technology 2019 Q2 Energy (miscellaneous) 2019 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Carvajal Barriga, Enrique Javier Martín-Gil, Jesús (orcid)0000-0003-2713-2786 Martín-Ramos, Pablo Universidad de Zaragoza 5011 500 Universidad de Zaragoza Dpto. CC.Agrar.y Medio Natural Area Ingeniería Agroforestal 12, 9 (2019), 1703 [15 pp.] ENERGIES Energies 1996-1073 1221338 http://zaguan.unizar.es/record/78994/files/texto_completo.pdf Versión publicada 105789 http://zaguan.unizar.es/record/78994/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:78994 articulos driver 2020-07-16-08:59:36 ARTICLE