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- [1] Energy Consumption and Morphological Development of Eucalyptus Alkaline Peroxide Mechanical Pulp by Carboxymethyl Cellulose-assisted RefiningBIORESOURCES, 2013, 8 (02): : 2173 - 2185Cheng, FengzhenLi, YoumingChen, Donghai
Valorization of Alkaline Peroxide Mechanical Pulp by Metal Chloride-Assisted Hydrotropic Pretreatment for Enzymatic Saccharification and Cellulose Nanofibrillation
被引：11
|作者：
Bian, Huiyang
[1
]
Wu, Xinxing
[1
,2
]
Luo, Jing
[1
,2
]
Qiao, Yongzhen
[1
]
Fang, Guigan
[3
]
Dai, Hongqi
[1
]
机构：
[1] Nanjing Forestry Univ, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat F, Nanjing 210037, Jiangsu, Peoples R China
[2] Nanjing Forestry Univ, Coll Chem Engn, Nanjing 210037, Jiangsu, Peoples R China
[3] Chinese Acad Forestry, China Inst Chem Ind Forestry Prod, Nanjing 210042, Jiangsu, Peoples R China
来源：
基金：
国家重点研发计划;
关键词：
hydrotropic treatment;
metal chloride;
delignification;
enzymatic saccharification;
lignocellulosic nanofibrils;
INTEGRATED PRODUCTION;
FURFURAL PRODUCTION;
RESIDUAL LIGNIN;
ACID-HYDROLYSIS;
ETHANOL;
STRAW;
WOOD;
AUTOHYDROLYSIS;
DIGESTIBILITY;
FRACTIONATION;
D O I：
10.3390/polym11020331
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ;
080501 ;
081704 ;
摘要：
Developing economical and sustainable fractionation technology of lignocellulose cell walls is the key to reaping the full benefits of lignocellulosic biomass. This study evaluated the potential of metal chloride-assisted p-toluenesulfonic acid (p-TsOH) hydrolysis at low temperatures and under acid concentration for the co-production of sugars and lignocellulosic nanofibrils (LCNF). The results indicated that three metal chlorides obviously facilitated lignin solubilization, thereby enhancing the enzymatic hydrolysis efficiency and subsequent cellulose nanofibrillation. The CuCl2-assisted hydrotropic pretreatment was most suitable for delignification, resulting in a relatively higher enzymatic hydrolysis efficiency of 53.2%. It was observed that the higher residual lignin absorbed on the fiber surface, which exerted inhibitory effects on the enzymatic hydrolysis, while the lower lignin content substrates resulted in less entangled LCNF with thinner diameters. The metal chloride-assisted rapid and low-temperature fractionation process has a significant potential in achieving the energy-efficient and cost-effective valorization of lignocellulosic biomass.
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页数：11
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