Maximizing the production of high-value chemicals via fast-pyrolysis of lignin-engineered poplars: Impact of cinnamyl alcohol dehydrogenase 1 (hpCAD) downregulation

被引：2

作者：

Li, Liang ^{[1
]}

Vermeire, Florence H. ^{[1
]}

Van de Vijver, Ruben ^{[1
]}

Wouters, Marlies ^{[2
,3
]}

Boerjan, Wout ^{[2
,3
]}

Van Geem, Kevin M. ^{[1
]}

机构：

[1] Univ Ghent, Lab Chem Technol, Technol Pk 125, B-9052 Ghent, Belgium

[2] Ctr Plant Syst Biol VIB, Technol Pk 71, B-9052 Ghent, Belgium

[3] Univ Ghent, Dept Plant Biotechnol & Bioinformat, Technol Pk 71, B-9052 Ghent, Belgium

来源：

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2023年 / 171卷

基金：

欧洲研究理事会;

关键词：

Fast pyrolysis; Lignin-engineered poplar; High-value chemicals; Quantitative characterization; Principal component analyses; BIO-OIL; PY-GC/MS; BIOMASS PYROLYSIS; STRUCTURAL ALTERATIONS; HYBRID POPLAR; BIOSYNTHESIS;

D O I：

10.1016/j.jaap.2023.105974

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Lignin valorisation is crucial for the economic viability of biorefineries, but remains a challenge. Our work shows that the fast pyrolysis of transgenic biomass has significant potential for the production of high-value chemicals. New field-grown transgenic poplars severely downregulated for cinnamyl alcohol dehydrogenase 1 (hpCAD) have a change in lignin structure due to the substantial incorporation of sinapaldehyde into the polymer. Wildtype and hpCAD poplars were pyrolyzed in a micropyrolyzer for identification and quantification of pyrolytic volatiles. The study aims at capturing the influence of CAD1 downregulation on lignin-derived pyrolysis products supported by statistical analysis of the obtained pyrolysis data. The results showed that the pyrolysis of hpCAD lines enhanced the yield of two kinds of high-value aromatics, namely, those with C--O group in side-chains (e.g. vanillin and syringaldehyde), and those without side-chains (e.g. phenol, guaiacol and syringol), at the expense of the formation of aromatics with alkyl side-chains.

引用

页数：9

共 1 条

[1] Production of High-Value Green Chemicals via Catalytic Fast Pyrolysis of Eucalyptus urograndis Forest Residues
Bittencourt, Ricardo de C.
Guimaraes, Tiago
da Costa, Marcelo M.
Silva, Larissa S.
Barbosa, Veronica O. de P.
Aredes, Stephani Caroline de L.
Alves, Krisnna S.
Carvalho, Ana Marcia M. L.
SUSTAINABILITY, 2024, 16 (19)

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