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 Café - Uso
AB Spent coffee grounds (SCGs) are an abundant lignocellulosic biomass with significant potential for industrial valorization, 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, was employed to efficiently fractionate SCGs into their primary components. Hemicellulosic liquors containing up to 25 wt% sugars, predominantly galactose and mannose, were successfully extracted and subsequently dehydrated to 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-transform infrared spectroscopy (FTIR), confirming their effective separation. These findings highlight the viability of SCGs as a sustainable feedstock for biorefinery applications, contributing to waste valorization and the development of a circular economy.
PB Elsevier
YR 2025
FD 2025
LK https://hdl.handle.net/10630/40296
UL https://hdl.handle.net/10630/40296
LA eng
NO Antonio M. Pérez-Merchán, Ramón Moreno-Tost, Irene Malpartida-García, Cristina García-Sancho, Josefa M. Mérida-Robles, Pedro Maireles-Torres, An integrated biorefinery approach based on spent coffee grounds valorization, Journal of Cleaner Production, Volume 528, 2025, 146716, ISSN 0959-6526, https://doi.org/10.1016/j.jclepro.2025.146716
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 24 ene 2026