Comparative investigation of the structural characteristics of tobacco stalk lignin during the DES and alkaline deconstruction toward sustainable materials
Lignin polymer as a natural aromatic macromolecule presents significant prospects in producing functional and sustainable materials, and achieving a comprehensive characterization will facilitate their target valorization. In the present study, deep eutectic solvent (DES) and alkaline delignificatio...
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| Format: | Article |
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Frontiers Media S.A.
2022-08-01
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| Series: | Frontiers in Bioengineering and Biotechnology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fbioe.2022.994760/full |
| _version_ | 1798036710669418496 |
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| author | Na Wang Bo Wang Hui Si Suxia Hu Lin Chen Yu Liao Lei Wang Yifan Zhang Jungang Jiang |
| author_facet | Na Wang Bo Wang Hui Si Suxia Hu Lin Chen Yu Liao Lei Wang Yifan Zhang Jungang Jiang |
| author_sort | Na Wang |
| collection | DOAJ |
| description | Lignin polymer as a natural aromatic macromolecule presents significant prospects in producing functional and sustainable materials, and achieving a comprehensive characterization will facilitate their target valorization. In the present study, deep eutectic solvent (DES) and alkaline delignification were adopted to deconstruct tobacco stalk before and after hydrothermal pretreatment, obtaining diverse lignin fractions with fascinating characteristics. DES lignin exhibited a higher yield and homogenous molecular structure than MWL. A severe cleavage of the inter-unit linkages in lignin was also observed. This result mostly originated from the efficient delignification of the DES deconstruction system adopted. Moreover, all the recovered lignin fractions exhibited good micro-nanoparticle size that can enhance the valorization of lignin in nanomaterial production, in which the hydrothermal-assisted DES deconstruction promoted the formation of the smaller lignin nanoparticle size. Next, all the recovered lignin presented an excellent UV absorption and structure-related absorption performance or thermal properties. Overall, this work provides an important foundation for further exploiting DES/alkaline delignification lignin that can be applied as an ideal feedstock for producing sustainable functional or micro/nanomaterials. |
| first_indexed | 2024-04-11T21:16:42Z |
| format | Article |
| id | doaj.art-6d1e6ea8437046d3a5e4d4af84c4a1c7 |
| institution | Directory Open Access Journal |
| issn | 2296-4185 |
| language | English |
| last_indexed | 2024-04-11T21:16:42Z |
| publishDate | 2022-08-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Bioengineering and Biotechnology |
| spelling | doaj.art-6d1e6ea8437046d3a5e4d4af84c4a1c72022-12-22T04:02:47ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852022-08-011010.3389/fbioe.2022.994760994760Comparative investigation of the structural characteristics of tobacco stalk lignin during the DES and alkaline deconstruction toward sustainable materialsNa Wang0Bo Wang1Hui Si2Suxia Hu3Lin Chen4Yu Liao5Lei Wang6Yifan Zhang7Jungang Jiang8China Tobacco Hubei Industrial Co., Ltd., Wuhan, ChinaChina Tobacco Hubei Industrial Co., Ltd., Wuhan, ChinaChina Tobacco Hubei Industrial Co., Ltd., Wuhan, ChinaChina Tobacco Hubei Industrial Co., Ltd., Wuhan, ChinaChina Tobacco Hubei Industrial Co., Ltd., Wuhan, ChinaChina Tobacco Hubei Industrial Co., Ltd., Wuhan, ChinaHubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, ChinaHubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, ChinaHubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, ChinaLignin polymer as a natural aromatic macromolecule presents significant prospects in producing functional and sustainable materials, and achieving a comprehensive characterization will facilitate their target valorization. In the present study, deep eutectic solvent (DES) and alkaline delignification were adopted to deconstruct tobacco stalk before and after hydrothermal pretreatment, obtaining diverse lignin fractions with fascinating characteristics. DES lignin exhibited a higher yield and homogenous molecular structure than MWL. A severe cleavage of the inter-unit linkages in lignin was also observed. This result mostly originated from the efficient delignification of the DES deconstruction system adopted. Moreover, all the recovered lignin fractions exhibited good micro-nanoparticle size that can enhance the valorization of lignin in nanomaterial production, in which the hydrothermal-assisted DES deconstruction promoted the formation of the smaller lignin nanoparticle size. Next, all the recovered lignin presented an excellent UV absorption and structure-related absorption performance or thermal properties. Overall, this work provides an important foundation for further exploiting DES/alkaline delignification lignin that can be applied as an ideal feedstock for producing sustainable functional or micro/nanomaterials.https://www.frontiersin.org/articles/10.3389/fbioe.2022.994760/fullmacromolecular structuretobacco stalklignindeep eutectic solventUV absorption |
| spellingShingle | Na Wang Bo Wang Hui Si Suxia Hu Lin Chen Yu Liao Lei Wang Yifan Zhang Jungang Jiang Comparative investigation of the structural characteristics of tobacco stalk lignin during the DES and alkaline deconstruction toward sustainable materials Frontiers in Bioengineering and Biotechnology macromolecular structure tobacco stalk lignin deep eutectic solvent UV absorption |
| title | Comparative investigation of the structural characteristics of tobacco stalk lignin during the DES and alkaline deconstruction toward sustainable materials |
| title_full | Comparative investigation of the structural characteristics of tobacco stalk lignin during the DES and alkaline deconstruction toward sustainable materials |
| title_fullStr | Comparative investigation of the structural characteristics of tobacco stalk lignin during the DES and alkaline deconstruction toward sustainable materials |
| title_full_unstemmed | Comparative investigation of the structural characteristics of tobacco stalk lignin during the DES and alkaline deconstruction toward sustainable materials |
| title_short | Comparative investigation of the structural characteristics of tobacco stalk lignin during the DES and alkaline deconstruction toward sustainable materials |
| title_sort | comparative investigation of the structural characteristics of tobacco stalk lignin during the des and alkaline deconstruction toward sustainable materials |
| topic | macromolecular structure tobacco stalk lignin deep eutectic solvent UV absorption |
| url | https://www.frontiersin.org/articles/10.3389/fbioe.2022.994760/full |
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