Design of Antibacterial and Sustainable Antioxidant Networks Based on Plant Phenolic Derivatives Used As Delivery System of Carvacrol or Tannic Acid

Abstract

Biobased release networks embedding active phenolic moieties were prepared by photoinduced thiol–ene reaction. The originality of this work is to design UV-cured materials as the delivery system of two phenolic compounds i.e. carvacrol (presents in thyme essential oil) and tannic acid (plants extracted). The key point of this study is to elaborate the cross-linked network and, in the same step, trapping the active phenolic molecules thanks to a rapid photoinduced process at room temperature, preserving active natural compounds. The photoactivated thiol–ene reaction was chosen to synthesize different eugenol-based networks since this process is nowadays mainly well-known as a fast and straightforward tool to prepare cross-linked materials by green chemistry. The mechanical and thermal properties of the networks were determined, and their antibacterial and antioxidant properties were investigated against two bacteria strains: Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). The system based...