EUBCE 2026 - Margot BRUAT - Use of Plant Cell Culture to Improve Understanding of the Relationship Between Lignin Structure and Extractibility Through Deep Eutectic Solvent Process

Use of Plant Cell Culture to Improve Understanding of the Relationship Between Lignin Structure and Extractibility Through Deep Eutectic Solvent Process

Short Introductive summary

As a polymer of phenolic compounds, once extracted, lignin can be used for several applications, from energy production, to carbon fiber or high value aromatic products after depolymerisation. Lignin is essential for plants, as it gives the cell wall its rigidity and enables the circulation of nutrients through the vascular system of the plant. It is also the first defensive barrier of plants. Indeed, the activation of lignin metabolism plays a crucial role in the resistance of plants to diseases, pathogens, insects and environmental stresses like drought, low and high temperatures, heavy metals or high salinity. Moreover, those hazards have an impact on the nature of produced monolignols and are consequently responsible for structural modifications of lignin (Liu et al., 2018). This study focuses on the impact of culture conditions on lignin structure and production in plant cell cultures. To do so, flax cell cultures, which are plant stem cells obtained from flax seeds, have been cultivated in different conditions with the application of stresses, also known as elicitation. To understand the relationship between lignin structure of the biomass and its extractibility.

M. Bruat, Université de Strasbourg, FRANCE
L. Gondet, Université de Strasbourg, FRANCE
P. Schellenbaum, Université de Haute Alsace, Colmar, FRANCE
D. Trebouet, Université de Strasbourg, FRANCE
M. Villain-Gambier, Université de Strasbourg, FRANCE