Quantitative Characterization of Modified Lignin Using Solid-State <sup>13</sup>C NMR Spectroscopy
Solid-state <sup>13</sup>C nuclear magnetic resonance (NMR) spectroscopy with magic angle spinning (MAS) and direct polarization (DP) techniques is a valuable tool for quantitative and reliable characterization of lignin derivatives, specifically for determining these chemical structures and the degree of substitution upon chemical modification. In this study, the DPMAS <sup>13</sup>C NMR spectroscopy was used in a quantitative study of the esterifying reaction in lignin derivatives, which allowed the whole lignin structure to be determined. This quantitative evaluation system using DPMAS <sup>13</sup>C NMR spectroscopy can be widely utilized for lignin characterization without a specific chemical treatment or decomposition of lignin.
Authors
- Yasuyuki Matsushita (ORCID: https://orcid.org/0000-0003-1357-3927)
- Keiichi Noguchi (ORCID: https://orcid.org/0000-0003-0833-0808)
- Jun Ashida
- Yuichiro Otsuka (ORCID: https://orcid.org/0000-0002-7501-199X)
- Yoichi Tominaga (ORCID: https://orcid.org/0000-0001-5098-8537)
- Kazuhiro Shikinaka (ORCID: https://orcid.org/0000-0003-3598-3046)
- K. Hiratsuka
- T Kato
- Haruka Sotome-Yukisada
Institutions
- JEOL (Japan) (JP)
- Forestry and Forest Products Research Institute (JP)
- Bio-Medical Science (South Korea) (KR)
- National Institute of Advanced Industrial Science and Technology (JP)
- Tokyo University of Agriculture and Technology (JP)
Publication Details
- Journal
- Analytical Chemistry
- Published
- 2025-04-24
- DOI
- https://doi.org/10.1021/acs.analchem.5c01084
- Citations
- 5
- Primary Topic
- Lignin and Wood Chemistry
- Type
- article
- Field-Weighted Citation Impact
- 3.37
Funders
- Japan Society for the Promotion of Science
- JST-Mirai Program