Autor segons l'article: Ahorsu, Richard; Constanti, Magda; Dominguez de Maria, Pablo; Medina, Francesc
Departament: Enginyeria Química
Autor/s de la URV: Constantí Garriga, Magdalena / Medina Cabello, Francisco
Paraules clau: Walnut shell; Microwave processes; Lignocellulosic biomass; Lignin; Deep eutectic solvents; Ball milling; wood; separation; microwave processes; lignin; infrared-spectroscopy; fractionation; extraction; des; depolymerization; deep eutectic solvents; cellulose; ball milling; acid
Resum: The combination of ball milling (BM), microwave irradiation (MI), and deep eutectic solvents (DES) results synergistic for an efficient, selective, and very rapid (10 min) delignification of materials with high lignin content (ca. 50 wt%) such as walnut shells (WS). Lignin is dissolved in the DES, whereas the polysaccharide fractions remain suspended with limited degradation, due to the rapid pretreatment. After ball milling procedure (3 h), biomass loadings in the range of 100–200 g L−1 are selectively delignified in 10 min at 150 °C by using choline chloride:formic acid DES (1:2 molar ratio), rendering lignin yields of 60–80% (ca. ~ 40–60 g lignin L−1). Ball milling, microwave irradiation, and DES systems are much more efficient than ball milling, conventional heating, and DES system. The obtained lignins exhibited similar Fourier-transform infrared spectroscopy (FTIR) profile to that of milled wood lignin (MWL), indicating minimal functional group changes. Graphical abstract: [Figure not available: see fulltext.].
Àrees temàtiques: Renewable energy, sustainability and the environment; Química; Interdisciplinar; Ensino; Engineering, chemical; Engenharias ii; Energy & fuels; Ciências biológicas ii; Ciências agrárias i; Ciência de alimentos; Biotecnología
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: magdalena.constanti@urv.cat; francesc.medina@urv.cat
Data d'alta del registre: 2025-02-24
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://link.springer.com/article/10.1007/s13399-022-03566-y
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Biomass Conversion And Biorefinery. 14 (11): 11849-11861
Referència de l'ítem segons les normes APA: Ahorsu, Richard; Constanti, Magda; Dominguez de Maria, Pablo; Medina, Francesc (2024). Synergy of ball milling, microwave irradiation, and deep eutectic solvents for a rapid and selective delignification: walnut shells as model for lignin-enriched recalcitrant biomass. Biomass Conversion And Biorefinery, 14(11), 11849-11861. DOI: 10.1007/s13399-022-03566-y
DOI de l'article: 10.1007/s13399-022-03566-y
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2024
Tipus de publicació: Journal Publications
Repositori URV