title: Application of tetra-n-methylammonium hydroxide on cellulose dissolution and isolation from sugarcane bagasse.
abstract: Cellulose isolation, a promising way for lignocellulosic biomass utilization, is always restricted by the poor solubility of cellulose. In this paper, tetra-n-methylammonium hydroxide (TMAH) was confirmed to be capable of readily dissolving/regenerating cellulose without chemical modification at room temperature. Meanwhile, cellulose isolation from lignocellulosic biomass by initially dissolving the biomass in TMAH followed by cellulose precipitation was proposed, and the isolated substance with average cellulose purity of 92.1 ± 0.3% could be obtained throughout this process under the optimum conditions: temperature 52 °C, time 60 min, and loading ratio of TMAH/biomass (w/w) 7.2:1. Besides, high efficiency cellulose isolation (i.e. >70% cellulose purity) could be continuously remained during 4-round cycles by using the recycled TMAH solvent without distinct activity loss.
authors.affiliation: College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China.
authors.forename: Chao
authors.initials: C
authors.lastname: Zhong
authors.affiliation: College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China.
authors.forename: Chunming
authors.initials: C
authors.lastname: Wang
authors.affiliation: College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China.
authors.forename: Fengxue
authors.initials: F
authors.lastname: Wang
authors.affiliation: College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China. Electronic address: hhjia@njtech.edu.cn.
authors.forename: Honghua
authors.initials: H
authors.lastname: Jia
authors.affiliation: College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China.
authors.forename: Ping
authors.initials: P
authors.lastname: Wei
authors.affiliation: Henan Tianguan Group Co. Ltd, Nanyang 473000, PR China.
authors.forename: Yin
authors.initials: Y
authors.lastname: Zhao
mesh_terms: D002482:Cellulose / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*
chemical_list: D000644:Quaternary Ammonium Compounds; D002482:Cellulose; C027433:bagasse; C027917:tetramethylammonium
keywords: Cellulose; Dissolution; Isolation; Recycling; Tetra-n-methylammonium hydroxide