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The alleviation of lignin inhibition on enzymatic hydrolysis of cellulose by its ultrastructure

文献类型：期刊论文

作者Chen, Xindong1,5; Li, Hailong1,2,3,4; Yao, Shimiao1,2,3,4; Wang, Can1,2,3,4; Chen, Xuefang1,2,3,4; Guo, Haijun1,2,3,4; Xiong, Lian1,2,3,4; Zhang, Hairong1,2,3,4; Chen, Xinde1,2,3,4
刊名INDUSTRIAL CROPS AND PRODUCTS
出版日期2022-10-01
卷号185页码:8
ISSN号0926-6690
关键词Cellulose ultrastructure Lignin inhibition Enzymatic hydrolysis Cellulase
DOI10.1016/j.indcrop.2022.115108
通讯作者Li, Hailong(lihl@ms.giec.ac.cn) ; Chen, Xinde(cxd_cxd@hotmail.com)
英文摘要Lignin is regarded as the primary factor that inhibits enzymatic hydrolysis of cellulose. However, the impact of cellulose ultrastructure on the inhibition of lignin during enzymatic hydrolysis is still unclear. In this work, the addition of lignin during enzymatic hydrolysis of cellulose with different ultrastructure was investigated. Furthermore, the influences of changing cellulose ultrastructure on cellulose conversion of pine after hydro thermal treatment (HT) without and with additives (2-naphthol (2 N) and phloroglucinol (PL)) were explored in detail. The results showed that enzymatic hydrolyzability of allomorphic cellulose was strongly inhibited by lignin. In contrast, a small inhibition degree of lignin was observed for amorphous cellulose. Surprisingly, the cellulose conversion of HT treated pine was dramatically decreased (18.45-6.25%) after ball-milling treatment (BM), while it was significantly increased (18.45-74.49%) after concentrated phosphoric acid treatment (CP). In addition, the addition of 2 N or PL during HT could promote or inhibit cellulose conversion due to the changes in the condensation degree of lignin. These results indicated that the physiochemical structure of lignin has a significant effect on cellulose hydrolysis. More importantly, the increasing degree of cellulose conversion was enhanced in sequence from HT+PL (6.19-35.00%), HT (18.45-74.49%), to HT+ 2 N (21.12-92.30%) after CP, which was attributed to the reducing lignin condensation and changing cellulose ultrastructure. Overall, this work demonstrated that the inhibition degree of lignin was highly dependent on the cellulose ultrastructure.
WOS关键词AUTOHYDROLYSIS PRETREATMENT ; PSEUDO-LIGNIN ; BIOMASS ; RECALCITRANCE ; CHEMISTRY ; SOFTWOOD
资助项目National Natural Science Foundation of China[31600475] ; National Natural Science Foundation of China[51876207] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515011843] ; Project of Jiangsu Province Science and Technology[BE2020394]
WOS研究方向Agriculture
语种英语
出版者ELSEVIER
WOS记录号WOS:000808530800010
资助机构National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation ; Project of Jiangsu Province Science and Technology
源URL[http://ir.giec.ac.cn/handle/344007/36883]  
专题中国科学院广州能源研究所
通讯作者Li, Hailong; Chen, Xinde
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
4.R&D Ctr Xuyi Attapulgite Energy& Environm Mat, Lanzhou 211700, Xuyi, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Xindong,Li, Hailong,Yao, Shimiao,et al. The alleviation of lignin inhibition on enzymatic hydrolysis of cellulose by its ultrastructure[J]. INDUSTRIAL CROPS AND PRODUCTS,2022,185:8.
APA Chen, Xindong.,Li, Hailong.,Yao, Shimiao.,Wang, Can.,Chen, Xuefang.,...&Chen, Xinde.(2022).The alleviation of lignin inhibition on enzymatic hydrolysis of cellulose by its ultrastructure.INDUSTRIAL CROPS AND PRODUCTS,185,8.
MLA Chen, Xindong,et al."The alleviation of lignin inhibition on enzymatic hydrolysis of cellulose by its ultrastructure".INDUSTRIAL CROPS AND PRODUCTS 185(2022):8.

入库方式： OAI收割

来源：广州能源研究所

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