Efficient preparation of high-purity cellulose from moso bamboo by p-toluenesulfonic acid pretreatment

Bin Wang; Xuan Zhang; Jinpeng Li; Jun Xu; Jinsong Zeng; Ming Li; Xingxing Li; Yibao Li

doi:10.1016/j.ijbiomac.2023.125395

Efficient preparation of high-purity cellulose from moso bamboo by p-toluenesulfonic acid pretreatment

Int J Biol Macromol. 2023 Aug 1:245:125395. doi: 10.1016/j.ijbiomac.2023.125395. Epub 2023 Jun 16.

Authors

Bin Wang¹, Xuan Zhang², Jinpeng Li³, Jun Xu¹, Jinsong Zeng¹, Ming Li⁴, Xingxing Li⁴, Yibao Li⁴

Affiliations

¹ Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou 510006, China.
² Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China.
³ Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou 510006, China. Electronic address: ljp@scut.edu.cn.
⁴ School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou 341000, PR China; Engineering Research Center of Bamboo Advanced Materials and Conversion of Jiangxi Province, Gannan Normal University, Ganzhou 341000, PR China.

PMID: 37330075
DOI: 10.1016/j.ijbiomac.2023.125395

Abstract

This work proposed a promising biorefinery method for the deconstruction of moso bamboo by using p-toluenesulfonic acid (P-TsOH) pretreatment to product high-purity cellulose (dissolving pulp). The cellulose pulp with high α-cellulose content (82.36 %) was successfully prepared for 60 min at low pretreatment temperature (90 °C) and atmospheric pressure. After the simple bleaching and cold caustic extraction (CCE) processes, the properties of cellulose pulp, such as α-cellulose content, polymerization, ISO brightness, all met the standard of dissolving pulp. In general, the cooking method through P-TsOH pretreatment can shorten the preparation time, which can effectively reduce energy consumption and chemical consumption. Therefore, this work may provide a new perspective for the green preparation of dissolving pulp that can be used to produce lyocell fiber after ash and metal ion treatment.

Keywords: Fractionation; High-pruity cellulose; P-toluenesulfonic acid pretreatment.

MeSH terms

Benzenesulfonates
Cellulose* / chemistry
Poaceae
Wood* / chemistry

Substances

Cellulose
4-toluenesulfonic acid
Benzenesulfonates