中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 广州能源研究所
  3. 中国科学院广州能源研究所
An efficient magnetic carbon-based solid acid treatment for corncob saccharification with high selectivity for xylose and enhanced enzymatic digestibility

文献类型：期刊论文

作者Qi, Wei2; Liu, Guifeng1,2; He, Chao2; Liu, Shuna2; Lu, Si2,3; Yue, Jun4; Wang, Qiong2; Wang, Zhongming2; Yuan, Zhenhong2,5; Hu, Jianhua6
刊名GREEN CHEMISTRY
出版日期2019-03-21
卷号21期号:6页码:1292-1304
ISSN号1463-9262
DOI10.1039/c8gc02854k
通讯作者Qi, Wei(qiwei@ms.giec.ac.cn) ; Wang, Qiong(wangqiong@ms.giec.ac.cn)
英文摘要An effective method for corncob saccharification was investigated over a magnetic carbon-based solid acid (MMCSA) catalyst in the aqueous phase. MMCSA was synthesized through a simple and inexpensive impregnation-carbonization-sulfonation process. Under the optimal reaction conditions (150 degrees C, 2 h, 0.5 g corncob, 0.5 g catalyst and 50 ml deionized water), 74.9% of xylose yield was directly obtained from corncob, with 91.7% cellulose retention in the residue. After the reaction, the MMCSA was easily separated from the residue using an external magnet and reused 4 times, showing its high stability and catalytic activity. The enzymatic digestibility of the pretreated residue reached 95.2%, with a total sugar yield of 90.4%. The morphological and structural properties of the natural and treated corncobs were analyzed primarily through 3D X-ray microscopy to characterize the cell wall thickness, porosity, and pore surface area distribution. The increase of macropores (pore surface areas >200 m(2)) was beneficial for the accessibility of cellulose to cellulosic enzymes, so the enzymatic digestibility was enhanced immediately. Compared with other traditional hydrolysis methods, this two-step hydrolysis approach represents an environmentally friendly and sustainable saccharification of lignocellulose to produce xylose and glucose while achieving the same level of reaction efficiency.
WOS关键词LIGNOCELLULOSIC BIOMASS ; PRETREATMENT METHODS ; SUGARCANE BAGASSE ; HYDROLYSIS ; CELLULOSE ; HEMICELLULOSE ; FRUCTOSE ; CATALYST ; GLUCOSE ; ESTERIFICATION
资助项目National Natural Science Foundation of China[51676193] ; National Natural Science Foundation of China[51506207] ; National Natural Science Foundation of China[51561145015] ; Youth Innovation Promotion Association, CAS[2017401] ; Municipal Science and Technology Program of Guangzhou[201804010187] ; Guangdong Key Laboratory of New and Renewable Energy Research and Development[Y709ji1001] ; Netherlands Organisation for Scientific Research[040.21.006]
WOS研究方向Chemistry ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:000462636800010
出版者ROYAL SOC CHEMISTRY
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS ; Municipal Science and Technology Program of Guangzhou ; Guangdong Key Laboratory of New and Renewable Energy Research and Development ; Netherlands Organisation for Scientific Research
源URL[http://ir.giec.ac.cn/handle/344007/24725]  
专题中国科学院广州能源研究所
通讯作者Qi, Wei; Wang, Qiong
作者单位1.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, 2 Nengyuan Rd, Guangzhou 510640, Guangdong, Peoples R China
3.Changsha Univ Sci & Technol, Changsha 410004, Hunan, Peoples R China
4.Univ Groningen, Engn & Technol Inst Groningen, Dept Chem Engn, NL-9747 AG Groningen, Netherlands
5.Collaborat Innovat Ctr Biomass Energy, 63 Nongye Rd, Zhenghou 450002, Peoples R China
6.Guangdong Inst Anal, Guangdong Prov Key Lab Emergency Test Dangerous C, Guangzhou 510070, Guangdong, Peoples R China
推荐引用方式
GB/T 7714		 Qi, Wei,Liu, Guifeng,He, Chao,et al. An efficient magnetic carbon-based solid acid treatment for corncob saccharification with high selectivity for xylose and enhanced enzymatic digestibility[J]. GREEN CHEMISTRY,2019,21(6):1292-1304.
APA Qi, Wei.,Liu, Guifeng.,He, Chao.,Liu, Shuna.,Lu, Si.,...&Hu, Jianhua.(2019).An efficient magnetic carbon-based solid acid treatment for corncob saccharification with high selectivity for xylose and enhanced enzymatic digestibility.GREEN CHEMISTRY,21(6),1292-1304.
MLA Qi, Wei,et al."An efficient magnetic carbon-based solid acid treatment for corncob saccharification with high selectivity for xylose and enhanced enzymatic digestibility".GREEN CHEMISTRY 21.6(2019):1292-1304.

入库方式： OAI收割

来源：广州能源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。