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Enzymatic grafting of biopolymers has lately become a focus of green chemistry technologies due to increased environmental concerns and resulting legislative constraints. Over the past decade, polymer science has witnessed a surge in research on enzymes such as laccases and lipases. The goal of this research is to use these enzymes to graft multifunctional polymers for various applications. In this context, a number of bio-composites, such as bacterial cellulose (BC), poly3-hydroxybutyrate grafted ethyl cellulose, and keratin-g-ethyl cellulose, were effectively synthesized using enzyme-based grafting, with laccase and lipase as model bio-catalysts. Wood preservative made by creating covalent connections between bioactive compounds and wood using the laccase enzyme. The free-radical polymerization of aromatic substances, including gallate esters and lignins, is catalyzed by horseradish peroxidase. To increase the hydrophobicity of the fibers, Dodecyl Gallate (DG) was grafted onto the surfaces of lignin-rich jute textiles using HRPmediated oxidative polymerization. By using the laccase enzyme, cellulose grafting with ferulic acid is expected to enhance the mechanical properties of the resultant biocomposites. Moreover, the low molecular weight phenol and Pycnoporus cinnabarinus laccase enzyme's ability to biomodify high-content cellulose fibre for use in making paper. These low-molecular-weight phenols, which are covalently bonded to flax fibers by laccase treatment, can function as antibacterial agents, resulting in antimicrobial handsheets. This economical and resilient method offers enormous potential in the production of cellulose-based functional polymers.