5-6 months - Starting in February/March 2025 - Lignin, the second most abundant natural biopolymer after cellulose, represents the largest source of aromatic compounds and holds significant potential for developing materials with antioxidant, antibacterial, and UV-blocking properties. Nevertheless, its application is constrained by its heterogeneity and complex structure, which adversely affect its physicochemical properties and reactivity, thus limiting its applications in materials. Functionalization of lignin through esterification could enhance its solubility and compatibility with hydrophobic matrices. Among the modification approaches, enzymatic functionalization emerges as a more environmentally friendly alternative, offering greater selectivity for the transformation of this biopolymer.