Author, as appears in the article.: Ceaser R; Montané D; Constantí M; Medina F
Department: Enginyeria Química
URV's Author/s: Constantí Garriga, Magdalena
Keywords: Oxalic acid impregnation Optimization approach Milled softwood mixture Microwave-assisted hydrolysis Glucose Bioethanol
Abstract: In this study, a deep eutectic solvent pretreated milled softwood mixture was impregnated with oxalic acid before performing a water hydrolysis to obtain glucose using a microwave. Analysis of variance of a central composite design (CCD) showed that both temperature and time were significant parameters to consider when studying the cellulose conversion, glucose yield and glucose selectivity. The optimal conditions were 174 °C and 2 h, which resulted in 27.7% cellulose conversion, 22.4% glucose yield and 81.1% glucose selectivity. Oxalic acid affected the amorphous domains of cellulose at low hydrolysis temperature, while both the amorphous and the crystalline regions were affected at high temperature. Successive treatments of the solid hydrolysis residues resulted in 98.4% cellulose conversion, 79.0% glucose yield and 80.3% selectivity. Bioethanol was produced from the recovered glucose within 24 h with a fermentation efficiency of 42.9%.
Thematic Areas: Zootecnia / recursos pesqueiros Saúde coletiva Química Planejamento urbano e regional / demografia Odontología Nutrição Medicina veterinaria Medicina iii Medicina ii Medicina i Materiais Interdisciplinar Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Engenharias i Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Biotecnología Biodiversidade Astronomia / física Agronomy and crop science Agronomy Agriculture Agricultural engineering
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: magdalena.constanti@urv.cat
Author identifier: 0000-0002-3547-4199
Record's date: 2024-03-23
Papper version: info:eu-repo/semantics/publishedVersion
Papper original source: Industrial Crops And Products. 210
APA: Ceaser R; Montané D; Constantí M; Medina F (2024). High-yield selective conversion of pretreated milled softwood mixture to glucose by oxalic acid impregnation and microwave-assisted hydrolysis – Application to bio-ethanol production. Industrial Crops And Products, 210(), -. DOI: 10.1016/j.indcrop.2024.118183
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2024
Publication Type: Journal Publications
Repositori URV