Aldehydes-Aided Lignin-First Deconstruction Strategy for Facilitating Lignin Monomers and Fermentable Glucose Production from Poplar Wood

Aldehydes-Aided Lignin-First Deconstruction Strategy for Facilitating Lignin Monomers and Fermentable Glucose Production from Poplar Wood

In this study, lignin with fine structures and facile enzymatic saccharifying residue were successively dissociated based on the lignin-first biomass deconstruction strategy. In the lignin-first process, aldehyde-protected lignin fractions were firstly isolated by acid-catalyzed dioxane extraction i...

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Main Authors: Tian-Ying Chen, Cheng-Ye Ma, Dou-Yong Min, Chuan-Fu Liu, Shao-Ni Sun, Xue-Fei Cao, Jia-Long Wen, Tong-Qi Yuan, Run-Cang Sun
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Energies
Subjects:
biomass
lignin
biomass deconstruction
nmr characterization
structural changes
Online Access:https://www.mdpi.com/1996-1073/13/5/1113
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spelling doaj-4fe0dfe7338d4589976c664c7d27039b2020-11-25T02:27:37ZengMDPI AGEnergies1996-10732020-03-01135111310.3390/en13051113en13051113Aldehydes-Aided Lignin-First Deconstruction Strategy for Facilitating Lignin Monomers and Fermentable Glucose Production from Poplar WoodTian-Ying Chen0Cheng-Ye Ma1Dou-Yong Min2Chuan-Fu Liu3Shao-Ni Sun4Xue-Fei Cao5Jia-Long Wen6Tong-Qi Yuan7Run-Cang Sun8Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, ChinaGuangxi Key Laboratory of Clean Pulp &amp; Papermaking and Pollution Control, Nanning 530004, ChinaState Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, ChinaBeijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, ChinaBeijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, ChinaIn this study, lignin with fine structures and facile enzymatic saccharifying residue were successively dissociated based on the lignin-first biomass deconstruction strategy. In the lignin-first process, aldehyde-protected lignin fractions were firstly isolated by acid-catalyzed dioxane extraction in the presence of formaldehyde (FA) and acetaldehyde (AA) and then analyzed by advanced nuclear magnetic resonance (NMR) spectroscopy and gel permeation chromatography (GPC). The optimized hydrogenolysis of the extracted lignin (L<sub>FA</sub> and L<sub>AA</sub>) resulted in a high yield (42.57% and 33.00%) of lignin monomers with high product selectivity (mainly 2,6-dimethoxy-4-propylphenol) (39.93% and 46.61%). Moreover, the cellulose-rich residues were saccharified into fermentable glucose for bioethanol production. The glucose yield of the substrate (R<sub>AA</sub>) reached to 75.12%, which was significantly higher than that (15.4%) of the substrate (R<sub>FA</sub>). In short, the lignin-first biomass deconstruction by adding AA is a promising and sustainable process for producing value-added products (energy and fine chemicals) from lignocellulosic biomass.https://www.mdpi.com/1996-1073/13/5/1113biomassligninbiomass deconstructionnmr characterizationstructural changes
collection DOAJ
language English
format Article
sources DOAJ
author Tian-Ying Chen
Cheng-Ye Ma
Dou-Yong Min
Chuan-Fu Liu
Shao-Ni Sun
Xue-Fei Cao
Jia-Long Wen
Tong-Qi Yuan
Run-Cang Sun
spellingShingle Tian-Ying Chen
Cheng-Ye Ma
Dou-Yong Min
Chuan-Fu Liu
Shao-Ni Sun
Xue-Fei Cao
Jia-Long Wen
Tong-Qi Yuan
Run-Cang Sun
Aldehydes-Aided Lignin-First Deconstruction Strategy for Facilitating Lignin Monomers and Fermentable Glucose Production from Poplar Wood
Energies
biomass
lignin
biomass deconstruction
nmr characterization
structural changes
author_facet Tian-Ying Chen
Cheng-Ye Ma
Dou-Yong Min
Chuan-Fu Liu
Shao-Ni Sun
Xue-Fei Cao
Jia-Long Wen
Tong-Qi Yuan
Run-Cang Sun
author_sort Tian-Ying Chen
title Aldehydes-Aided Lignin-First Deconstruction Strategy for Facilitating Lignin Monomers and Fermentable Glucose Production from Poplar Wood
title_short Aldehydes-Aided Lignin-First Deconstruction Strategy for Facilitating Lignin Monomers and Fermentable Glucose Production from Poplar Wood
title_full Aldehydes-Aided Lignin-First Deconstruction Strategy for Facilitating Lignin Monomers and Fermentable Glucose Production from Poplar Wood
title_fullStr Aldehydes-Aided Lignin-First Deconstruction Strategy for Facilitating Lignin Monomers and Fermentable Glucose Production from Poplar Wood
title_full_unstemmed Aldehydes-Aided Lignin-First Deconstruction Strategy for Facilitating Lignin Monomers and Fermentable Glucose Production from Poplar Wood
title_sort aldehydes-aided lignin-first deconstruction strategy for facilitating lignin monomers and fermentable glucose production from poplar wood
publisher MDPI AG
series Energies
issn 1996-1073
publishDate 2020-03-01
description In this study, lignin with fine structures and facile enzymatic saccharifying residue were successively dissociated based on the lignin-first biomass deconstruction strategy. In the lignin-first process, aldehyde-protected lignin fractions were firstly isolated by acid-catalyzed dioxane extraction in the presence of formaldehyde (FA) and acetaldehyde (AA) and then analyzed by advanced nuclear magnetic resonance (NMR) spectroscopy and gel permeation chromatography (GPC). The optimized hydrogenolysis of the extracted lignin (L<sub>FA</sub> and L<sub>AA</sub>) resulted in a high yield (42.57% and 33.00%) of lignin monomers with high product selectivity (mainly 2,6-dimethoxy-4-propylphenol) (39.93% and 46.61%). Moreover, the cellulose-rich residues were saccharified into fermentable glucose for bioethanol production. The glucose yield of the substrate (R<sub>AA</sub>) reached to 75.12%, which was significantly higher than that (15.4%) of the substrate (R<sub>FA</sub>). In short, the lignin-first biomass deconstruction by adding AA is a promising and sustainable process for producing value-added products (energy and fine chemicals) from lignocellulosic biomass.
topic biomass
lignin
biomass deconstruction
nmr characterization
structural changes
url https://www.mdpi.com/1996-1073/13/5/1113
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