Biocatalytic selective acylation of technical lignins: a new route for the design of new biobased additives for industrial formulations - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Frontiers in Chemistry Year : 2023

Biocatalytic selective acylation of technical lignins: a new route for the design of new biobased additives for industrial formulations

Abstract

In this article, we describe a proof of concept of the potential use of a biocatalytic process for the functionalization of technical soda lignins from wheat straw through the selective acylation of primary hydroxy groups of lignin oligomers by acetate or hexanoate, thus preserving their free, unreacted phenols. The selectivity and efficiency of the method, although they depend on the structural complexity of the starting material, have been proven on model compounds. Applied to technical lignins, the acylation yield is only moderate, due to structural and chemical features induced by the industrial mode of preparation of the lignins rather than to the lack of efficiency of the method. However, most of the physicochemical properties of the lignins, including their antioxidant potential, are preserved, advocating the potential use of these modified lignins for industrial applications.

Domains

Biotechnology

Dates and versions

hal-04314648 , version 1 (29-11-2023)

Identifiers

Cite

Aya Sarieddine, Caroline Hadjiefstathiou, Amel Majira, Florian Pion, Paul-Henri Ducrot. Biocatalytic selective acylation of technical lignins: a new route for the design of new biobased additives for industrial formulations. Frontiers in Chemistry, 2023, 11, ⟨10.3389/fchem.2023.1239479⟩. ⟨hal-04314648⟩
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