Impact of degree of substitution of quaternary cellulose on the adsorption on charged surfaces and associated thermodynamics

Zhang, Xinyu; Tian, Jing; Wang, Peipei; Liu, Tian; Lu, Xiaomin; Guo, Jiaqi; Jin, Yongcan; Xiao, Huining; Song, Junlong

doi:10.1007/s10570-022-04975-y

Cited by 3 publications

(1 citation statement)

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“…The experiments were performed on a QCM-D E4 system (Biolin Scientific Co., Ltd., Gothenburg, Sweden). LCNF nanofibers (1% in suspension) were used to modify the QCM-D sensor. − To investigate the interaction between the enzyme and substrate in the presence or absence of LS, a mixture of enzyme and LS/enzyme was separately introduced in the system. Throughout the entire procedure, the pump maintained a constant flow rate of 0.1 mL/min, and the QCM chamber was kept at 25 °C.…”

Section: Methodsmentioning

confidence: 99%

Lignosulfonates Enable the Coproduction of Fibrillated Lignocellulose and Fermentable Sugars from Chemi-Thermomechanical Wood Fibers

Wang,

Song,

et al. 2024

ACS Sustainable Chem. Eng.

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Lignosulfonates (LS) are known to reduce the recalcitrance of wood fibers to enzymatic hydrolysis. This study furthers the use of LS for the bioconversion of chemithermomechanical pulp (CTMP, ca. 26% lignin) at high solids content (10%) using a cellulase and hemicellulase prehydrolysis complex combined with LS loading (dual treatment). The process (10% solids, 12 h) increases the sugar yield by 20% and produces high-quality lignin-containing cellulose nanofibrils (LCNF) by mechanical fibrillation. Moreover, the dual treatment yields nanofibrils of smaller lateral size and enables better colloidal stability compared with those obtained by enzyme treatment alone or by sequential application (LS addition after enzyme). Translucent films were produced with LCNF, which are shown for their reduced hydrophilicity, high mechanical strength, and UV shielding performance. The introduced approach for efficient utilization of lignocellulose resources to coproduce high-value fibrillated lignocellulose and sugars is expected to lead to new opportunities given the availability of CTMP under the persistent reduction in demand of newsprint and printing grades.

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