RT Journal Article
T1 An integrated biorefinery approach based on spent coffee grounds valorization
A1 Pérez-Merchán, Antonio Manuel
A1 Moreno-Tost, Ramón
A1 Malpartida-García, Irene
A1 García-Sancho, Cristina
A1 Mérida-Robles, Josefa María
A1 Maireles-Torres, Pedro Jesús
K1 Química verde
K1 Desarrollo sostenible
K1 Refinerías
K1 Biomasa
K1 Café
AB Spent coffee grounds (SCGs) are an abundant lignocellulosic biomass with significant potential for industrialvalorization, with great social and environmental benefits, due to their rich composition in cellulose, hemicellulose and lignin. In this study, the organosolv process, a method widely used in the paper industry, wasemployed to efficiently fractionate SCGs into their primary components. Hemicellulosic liquors containing up to25 wt% sugars, predominantly galactose and mannose, were successfully extracted and subsequently dehydratedto produce 5-hydroxymethylfurfural (5-HMF), reaching a maximum yield of 90 % within 15 min of reaction time.The residual cellulose and lignin fractions were characterized by X-ray diffraction (XRD) and Fourier-transforminfrared spectroscopy (FTIR), confirming their effective separation. These findings highlight the viability of SCGsas a sustainable feedstock for biorefinery applications, contributing to waste valorization and the development ofa circular economy.
PB Elsevier
YR 2025
FD 2025
LK https://hdl.handle.net/10630/40497
UL https://hdl.handle.net/10630/40497
LA eng
NO Pérez-Merchán AM, Moreno-Tost R, Malpartida-García I, García-Sancho C, Mérida-Robles JM, Maireles-Torres P. An integrated biorefinery approach based on spent coffee grounds valorization. Journal of Cleaner Production. 2025;528:146716. https://doi.org/10.1016/j.jclepro.2025.146716
NO Funding for open access charge: Universidad de Málaga/CBUA
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026