Green nanotechnology for the development of nanoparticles based on alginate associated with essential and vegetable oils for application in fruits and seeds protection
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2023-03-31
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Aiming to highlight the valorization of the natural products and the green synthesis processes, this work describes the development of a nanoscale system based on the use of alginate to encapsulate a blend of oils (vegetable and essential oils), not previously reported, with antibacterial and antioxidant actions. The study shows the influence of the polymer and surfactant concentrations on the physicochemical properties of the nanoparticles. The formulations were characterized by DLS, zeta potential, efficiency of encapsulation and stability. In addition, the antioxidant and antimicrobial properties of the systems were evaluated using the DPPH method and disk diffusion assays, respectively. The shelf life was studied by coating fruits and seeds. The results showed that the nanostructured system was stable, the efficiency of encapsulation was high and the nanoparticles size range was about 200–400 nm. The coating of fruits and seeds showed that the system was capable of inhibiting the growth of microorganisms and delaying the fruit maturation, indicating its potential for prolonging the shelf-life of fresh food.
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International Journal of Biological Macromolecules, v. 232.