Oxidative depolymerization of lignins for producing aromatics: variation of botanical origin and extraction methods
URI (for links/citations):https://link.springer.com/article/10.1007/s13399-020-00897-6
Cédric, Cabral Almada
Denilson Da, Silva Perez
Boris N. Kuznetsov
Journal Name:Biomass conversion and biorefinery
Journal Quartile in Scopus:Q3
Journal Quartile in Web of Science:Q2
Bibliographic Citation:Cédric, Cabral Almada. Oxidative depolymerization of lignins for producing aromatics: variation of botanical origin and extraction methods [Текст] / Cabral Almada Cédric, Kazachenko Aleksandr, Fongarland Pascal, Silva Perez Denilson Da, Boris N. Kuznetsov, Djakovitch Laurent // Biomass conversion and biorefinery. — 2020.
Several lignin samples of varying botanical nature (softwood, hardwood, or annual plants) and extraction procedures (Kraft, Organosolv, or soda) were fully characterized by complementary techniques and engaged in “catalyst-free” depolymerization in air under basic conditions. Treatment of the complex reaction mixture was optimized to ensure reproducibility, careful analyses, and accurate data. After an optimization of the reaction conditions, we were able to recover high amounts of aromatic compounds (up to 19%wt). Additionally, we demonstrated a relation between lignin’s structure, i.e., the accessible phenol moieties and inter-unit linkages, and the yields of aromatic compounds, thus showing the importance of the extraction process to optimize lignin’s potential. This work provides valuable reference for developing further lignin depolymerization under basic media.