Lignocellulosic materials as novel carriers, also at nanoscale, of organic active principles for agri-food applications

Abstract Lignocellulosic materials, mainly cellulose and lignin, also at the nanoscale level, have recently attracted much attention due to their renewable nature. By using a wide variety of naturally sourced materials, nanotechnology results in promising for applications in agriculture, for example, in pest management. Current plant protection strategy results are often insufficient, with negative effects of chemical pesticides on the whole environment. In this scenario, the use of nanotechnologies is able to promote more efficient assembly and release of green active principles for alternatives in plant disease management. This chapter provides an overview of current technological strategies, recently developed by our team, involved in both plant and food protection. Lignocellulosic-based materials, as cellulose nanocrystals and/or different micro- and nanoparticles extracted from natural residues, were considered as potential carriers of natural antioxidant and antimicrobial agents. They are evaluated in order to contribute to the circular economy concept, which is of strong interest for the agri-food industrial world.