Holistic investigation of structural evolution in corn stover lignin under pretreatment with varying γ-valerolactone concentrations
文献类型：期刊论文
| 作者 | Hu, Xiaohong1; Xia, Ying4; Wang, Haiyong2; Zhuang, Xiuzheng1; Liu, Qiying3; Li, Song1; Zhang, Qi1; Ma, Longlong1 |
| 刊名 | BIOMASS & BIOENERGY
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 183页码:9 |
| 关键词 | gamma-Valerolactone pretreatment Lignin structure Enzymatic saccharification Hydrodeoxygenation Recycling |
| ISSN号 | 0961-9534 |
| DOI | 10.1016/j.biombioe.2024.107155 |
| 通讯作者 | Li, Song(lis@seu.edu.cn) ; Zhang, Qi(zhangqiseu@seu.edu.cn) |
| 英文摘要 | Until now, research on green and sustainable gamma-valerolactone (GVL) pretreatment has predominantly centered on component separation efficiency, with limited attention given to the lignin structure. Nonetheless, the lignin's structure is considerably affected by the fractionation, consequently influencing its potential valorization. Herein, we conducted a holistic investigation of the structural evolution of two fractions of lignin in corn stover, obtained under pretreatment with varying GVL concentrations: GVL lignin (GVLL) originated from pretreatment liquor and cellulolytic enzyme lignin (CEL) separated from pretreated residue. Our findings indicated a general positive correlation between the molecular weight and polydispersity index of both GVLL and CEL with the increasing GVL concentration. This phenomenon is attributed to the enhanced lignin dissolution and relocation as the GVL concentration increases. Moreover, higher GVL concentrations also increased the acidity of reaction system, leading to degradation of beta-O-4 linkages from 45.2 to 34.9 and 57.6 to 37.9 per 100 aromatic units in GVLL and CEL, respectively. Compared to CEL, GVLL exhibited a more remarkable phenolics yield (33.7% vs. 22.2%) during hydrodeoxygenation due to its superior purity and lower degree of polymerization. Recycling studies demonstrated the stability of GVL at lower concentrations. These findings provide valuable insights for optimizing GVL pretreatment systems. |
| WOS关键词 | ENZYMATIC-HYDROLYSIS ; SOLVENT PRETREATMENT ; KRAFT LIGNIN ; WOOD LIGNIN ; BIOMASS ; FRACTIONATION ; CLEAVAGE ; MONOMER ; TRICIN |
| 资助项目 | National Natural Science Foundation of China[52236010] ; National Natural Science Foundation of China[52206288] ; National Key R & D Program of China[2022YFE0207200] ; Fundamental Research Funds for the Central Universities[2242022R10058] ; Academician and Expert Workstation of Yunnan Province, China[202205AF150024] ; China Postdoctoral Science Foundation[.2022M713166] |
| WOS研究方向 | Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001206685900001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; National Key R & D Program of China ; Fundamental Research Funds for the Central Universities ; Academician and Expert Workstation of Yunnan Province, China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41464]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Song; Zhang, Qi |
| 作者单位 | 1.Southeast Univ, Sch Energy & Environm, Key Lab Energy Thermal Convers & Control, Minist Educ, Nanjing 210096, Jiangsu, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 3.Nanjing Forestry Univ, Coll Chem Engn, Nanjing 210037, Jiangsu, Peoples R China 4.Guangdong Int Engn Consultant Co Ltd, Guangzhou 510060, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Xiaohong,Xia, Ying,Wang, Haiyong,et al. Holistic investigation of structural evolution in corn stover lignin under pretreatment with varying γ-valerolactone concentrations[J]. BIOMASS & BIOENERGY,2024,183:9. |
| APA | Hu, Xiaohong.,Xia, Ying.,Wang, Haiyong.,Zhuang, Xiuzheng.,Liu, Qiying.,...&Ma, Longlong.(2024).Holistic investigation of structural evolution in corn stover lignin under pretreatment with varying γ-valerolactone concentrations.BIOMASS & BIOENERGY,183,9. |
| MLA | Hu, Xiaohong,et al."Holistic investigation of structural evolution in corn stover lignin under pretreatment with varying γ-valerolactone concentrations".BIOMASS & BIOENERGY 183(2024):9. |
入库方式： OAI收割
来源：广州能源研究所
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