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Fractionation of lignin from rice straw using an acidified biphasic solvent system

文献类型：期刊论文

作者Zhang, Quan1,4,5; Dai, Chenxing1,4; Zhang, Jun2; He, Xiaojun1; Tan, Xuesong3,5; Zhang, Kai1,4; Xu, Xia1,4; Zhuang, Xinshu3,5
刊名INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
出版日期2023-03-01
卷号230页码:8
关键词Lignin Biphasic fractionation Pretreatment
ISSN号0141-8130
DOI10.1016/j.ijbiomac.2023.123249
通讯作者Tan, Xuesong(tanxs@ms.giec.ac.cn) ; Zhuang, Xinshu(zhuangxs@ms.giec.ac.cn)
英文摘要To obtain lignin from lignocellulosic biomass, phenoxyethanol (EPH) was employed to construct a biphasic solvent system. The concentration of EPH in this biphasic solvent system was first studied to determine a pre-treatment condition for fractionation of lignin. Then, the fractionation of lignin from rice straw was performed under the conditions of temperature 130 degrees C, cooking time 60 min and sulfuric acid concentration 0.1 M, in 70 % aqueous EPH solvent system. The results showed that 50.97 %, 49.52 % or 82.02 % of the removed lignin with the purity of 89.04 %, 91.30 % or 84.76 % was regenerated from EPH liquor using dimethyl carbonate (DMC), dimethoxymethane (DMM) or diethyl ether (DE) as precipitant, respectively. Additionally, the weight-average molecular weight (Mw) and dispersity index (D) of the regenerated lignin decreased to 4247-4809 g/mol and 1.26-1.60 compared with that of the original lignin (5654 g/mol and 4.78). Finally, the compositional and structural characteristics of lignin, e.g., molecular weight and molecular structure, were also investigated by DSC, HSQC and elemental analysis.
WOS关键词GAMMA-VALEROLACTONE ; PRETREATMENT ; CELLULOSE ; DISSOLUTION ; COMPONENTS ; SEVERITY ; BAMBOO
资助项目International Science and Technology Innovation Cooperation Program of the National Key Research and Development Plan of China[2021YFE0114400] ; National Natural Science Foundation of China[51976221] ; Leader in Academic and Technology in Anhui Provence[2021D306] ; Anhui University of Technology
WOS研究方向Biochemistry & Molecular Biology ; Chemistry ; Polymer Science
语种英语
WOS记录号WOS:000922134800001
出版者ELSEVIER
资助机构International Science and Technology Innovation Cooperation Program of the National Key Research and Development Plan of China ; National Natural Science Foundation of China ; Leader in Academic and Technology in Anhui Provence ; Anhui University of Technology
源URL[http://ir.giec.ac.cn/handle/344007/38503]  
专题中国科学院广州能源研究所
通讯作者Tan, Xuesong; Zhuang, Xinshu
作者单位1.Anhui Univ Technol, Sch Chem & Chem Engn, Maanshan 243002, Anhui, Peoples R China
2.Guangdong Ocean Univ, Coll Food Sci & Technol, Zhanjiang 524088, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China
4.Anhui Univ Technol, Biochem Engn Res Ctr, Maanshan 243002, Anhui, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Quan,Dai, Chenxing,Zhang, Jun,et al. Fractionation of lignin from rice straw using an acidified biphasic solvent system[J]. INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,2023,230:8.
APA Zhang, Quan.,Dai, Chenxing.,Zhang, Jun.,He, Xiaojun.,Tan, Xuesong.,...&Zhuang, Xinshu.(2023).Fractionation of lignin from rice straw using an acidified biphasic solvent system.INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES,230,8.
MLA Zhang, Quan,et al."Fractionation of lignin from rice straw using an acidified biphasic solvent system".INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES 230(2023):8.

入库方式： OAI收割

来源：广州能源研究所

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