@article{10272/23337,
year = {2024},
month = {1},
url = {https://hdl.handle.net/10272/23337},
abstract = {Alkaline pretreatments are considered highly effective for the separation of the different
components of lignocellulosic biomass. However, cold alkaline extraction (CAE) exhibits minimal
modification/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 the
raw material and subjected to ultrasound-assisted CAE. The objective of incorporating ultrasound
into cold alkaline extraction is to increase the yield of a hemicellulosic-rich liquid phase that can be
used to produce high-value products such as furfural or xylitol. Simultaneously, it aims to obtain a
solid phase with a higher calorific value compared to the raw material. The results, obtained from a
central composite factorial design, demonstrated that the CAE process for 90 min at a sodium hydroxide
concentration of 100 g L−1, a temperature of 30 ◦C, and with ultrasound assistance maximized
hemicellulose extraction in the liquid phase (60.8% was extracted) and improved the heating value of
solid phase.},
organization = {This work was funded by Spain’s Ministry of Science and Innovation, and also by
the National Research Program Oriented to the Challenges of Society (Project PID2020-112875RBC21,
MCIN/AEI /10.13039/501100011033), also this publication is part of the PRE2021-097925
support (funded by MCIN/AEI/10.13039/501100011033 and by the FSE+), and the University of
Huelva/CBUA.},
publisher = {MDPI},
title = {Ultrasound-Assisted Cold Alkaline Extraction: Increasing Hemicellulose Extraction and Energy Production from Populus Wood},
doi = {10.3390/f15010109},
author = {Lozano Calvo, Susana and Loaiza Rodríguez, Javier Mauricio and García Domínguez, Juan Carlos and García Domínguez, María Trinidad and López Baldovín, Francisco},
}