RT Journal Article
T1 Ultrasound-Assisted Cold Alkaline Extraction: Increasing Hemicellulose Extraction and Energy Production from Populus Wood
A1 Lozano Calvo, Susana
A1 Loaiza Rodríguez, Javier Mauricio
A1 García Domínguez, Juan Carlos
A1 García Domínguez, María Trinidad
A1 López Baldovín, Francisco
AB Alkaline pretreatments are considered highly effective for the separation of the differentcomponents of lignocellulosic biomass. However, cold alkaline extraction (CAE) exhibits minimalmodification/degradation of hemicellulosic fraction and successfully accomplishes efficient delignification.In this research, the fast-growing clone AF2 of Populus x euramericana wood was utilized as theraw material and subjected to ultrasound-assisted CAE. The objective of incorporating ultrasoundinto cold alkaline extraction is to increase the yield of a hemicellulosic-rich liquid phase that can beused to produce high-value products such as furfural or xylitol. Simultaneously, it aims to obtain asolid phase with a higher calorific value compared to the raw material. The results, obtained from acentral composite factorial design, demonstrated that the CAE process for 90 min at a sodium hydroxideconcentration of 100 g L−1, a temperature of 30 ◦C, and with ultrasound assistance maximizedhemicellulose extraction in the liquid phase (60.8% was extracted) and improved the heating value ofsolid phase.
PB MDPI
SN 1999-4907 (electrónico)
YR 2024
FD 2024-01
LK https://hdl.handle.net/10272/23337
UL https://hdl.handle.net/10272/23337
LA eng
NO Lozano-Calvo, S., Loaiza, J. M., García, J. C., García, M. T., & López, F. (2024). Ultrasound-Assisted Cold Alkaline Extraction: Increasing Hemicellulose Extraction and Energy Production from Populus Wood. In Forests (Vol. 15, Issue 1, p. 109). MDPI AG. https://doi.org/10.3390/f15010109
NO This work was funded by Spain’s Ministry of Science and Innovation, and also bythe National Research Program Oriented to the Challenges of Society (Project PID2020-112875RBC21,MCIN/AEI /10.13039/501100011033), also this publication is part of the PRE2021-097925support (funded by MCIN/AEI/10.13039/501100011033 and by the FSE+), and the University ofHuelva/CBUA.
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026