Characterization of Carboxylated Cellulose Nanocrystals Isolated Through Oxalic Acid Hydrolysis from Solid Residues of Softwood-Derived Glycol Lignin Production.

ABSTRACT: The efficient use of renewable lignocellulosic biomass has attracted wide interest, as it promises to reduce the environmental impact of fossil fuel consumption. A recently developed batch-scale process, which produces glycol lignin (GL) from softwood biomass, generates a considerable amount of cellulose-rich solid residues (SRs) as a byproduct. In this study, usable cellulose was isolated from SRs in the form of carboxylated cellulose nanocrystals (O-CNCs). The properties of O-CNCs were investigated to establish a possible integrated biomass utilization system based on the GL production technology. Three different forms of purified SRs-never-dried (N-Cel), freeze-dried (F-Cel), and vacuum-dried (V-Cel) cellulose-were subjected to oxalic acid (OA) hydrolysis at 95 °C for 4 h. The average l

SUBMITTER: Nge TT 

PROVIDER: S-EPMC12299898 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature