Unraveling interplay between lignocellulosic structures caused by chemical pretreatments in enhancing enzymatic hydrolysis
文献类型：期刊论文
| 作者 | Shakeel, Usama1; Zhang, Yu1,3; Topakas, Evangelos2; Wang, Wen1; Liang, Cuiyi1; Qi, Wei1,3 |
| 刊名 | CARBOHYDRATE POLYMERS
 |
| 出版日期 | 2024-06-15 |
| 卷号 | 334页码:13 |
| 关键词 | Biomass recalcitrance Enzymatic hydrolysis Cellulose Lignin condensation Lignin -carbohydrate complex (LCC) Xylan-lignin-glucomannan |
| ISSN号 | 0144-8617 |
| DOI | 10.1016/j.carbpol.2024.122037 |
| 通讯作者 | Zhang, Yu(zhangyu@ms.giec.ac.cn) ; Qi, Wei(qiwei@ms.giec.ac.cn) |
| 英文摘要 | To investigate the interplay between substrate structure and enzymatic hydrolysis (EH) efficiency, poplar was pretreated with acidic sodium-chlorite (ASC), 3 % sodium-hydroxide (3-SH), and 3 % sulfuric acid (3-SA), resulting in different glucose yields of 94.10 %, 74.35 %, and 24.51 %, respectively, of pretreated residues. Residues were fractionated into cellulose, lignin and unhydrolyzed residue after EH (for lignin-carbohydrate complex (LCC) analysis) and analyzed using HPLC, FTIR, XPS, CP MAS C-13 NMR and 2D-NMR (Lignin and LCC analysis). After delignification, holocellulose exhibited a dramatic increase in glucose yield (74.35 % to 90.82 % for 3-SH and 24.51 % to 80.0 % for 3-SA). Structural analysis of holocellulose suggested the synergistic interplay among cellulose allomorphs to limit glucose yield. Residual lignin analysis from un/pretreated residues indicated that higher beta-beta' contents and S/G ratios were favorable to the inhibitory effect but unfavourable to the holocellulose digestibility and followed the trend in the following order: 3-SA (L3) > 3-SH (L2) > native-lignin (L1). Analysis of enzymatically unhydrolyzed pretreated residues revealed the presence of benzyl ether (BE1,2) LCC and phenyl glycoside (PG) bond linking to xylose (X) and mannose (M), which yielded a xylan-lignin-glucomannan network. The stability, steric hindrance and hydrophobicity of this network may play a central role in defining poplar recalcitrance. |
| WOS关键词 | CARBOHYDRATE COMPLEXES LCCS ; CORN STOVER ; LIGNIN ; CELLULOSE ; POPLAR ; HEMICELLULOSE |
| 资助项目 | National Natural Science Foundation of China[22361132543] ; National Natural Science Foundation of China[22378391] ; National Natural Science Foundation of China[21978288] |
| WOS研究方向 | Chemistry ; Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001216172200001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41535]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zhang, Yu; Qi, Wei |
| 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, Guangzhou 510640, Peoples R China 2.Natl Tech Univ Athens, Sch Chem Engn, Biotechnol Lab, InduBioCat Grp, Athens 15780, Greece 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shakeel, Usama,Zhang, Yu,Topakas, Evangelos,et al. Unraveling interplay between lignocellulosic structures caused by chemical pretreatments in enhancing enzymatic hydrolysis[J]. CARBOHYDRATE POLYMERS,2024,334:13. |
| APA | Shakeel, Usama,Zhang, Yu,Topakas, Evangelos,Wang, Wen,Liang, Cuiyi,&Qi, Wei.(2024).Unraveling interplay between lignocellulosic structures caused by chemical pretreatments in enhancing enzymatic hydrolysis.CARBOHYDRATE POLYMERS,334,13. |
| MLA | Shakeel, Usama,et al."Unraveling interplay between lignocellulosic structures caused by chemical pretreatments in enhancing enzymatic hydrolysis".CARBOHYDRATE POLYMERS 334(2024):13. |
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。