An efficient magnetic carbon-based solid acid treatment for corncob saccharification with high selectivity for xylose and enhanced enzymatic digestibility

doi:10.1039/c8gc02854k

GIEC OpenIR

	An efficient magnetic carbon-based solid acid treatment for corncob saccharification with high selectivity for xylose and enhanced enzymatic digestibility
	Qi, Wei1 ; Liu, Guifeng 1,2; He, Chao 1; Liu, Shuna 1; Lu, Si 1,3; Yue, Jun 4; Wang, Qiong1 ; Wang, Zhongming1 ; Yuan, Zhenhong1,5 ; Hu, Jianhua 6
	2019-03-21
发表期刊	GREEN CHEMISTRY
ISSN	1463-9262
卷号	21 期号:6 页码:1292-1304
通讯作者	Qi, Wei(qiwei@ms.giec.ac.cn) ; Wang, Qiong(wangqiong@ms.giec.ac.cn)
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.
DOI	10.1039/c8gc02854k
关键词[WOS]	LIGNOCELLULOSIC BIOMASS ; PRETREATMENT METHODS ; SUGARCANE BAGASSE ; HYDROLYSIS ; CELLULOSE ; HEMICELLULOSE ; FRUCTOSE ; CATALYST ; GLUCOSE ; ESTERIFICATION
收录类别	SCI
语种	英语
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
项目资助者	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
WOS类目	Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology
WOS记录号	WOS:000462636800010
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：70[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/24726
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.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 2.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, 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
第一作者单位	中国科学院广州能源研究所
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.