Green synthesis of nanoparticles in cocos nucifera using aluminium nitrate nanohydrate with biomedical application and food preservative container

The article delves into the concept of green synthesis, a novel approach that harnesses cocos nucifera pollen extract and aluminium nitrate nanohydrate to produce aluminium nanoparticles (Al NPs). The findings suggest that Al NPs were successfully created with customizable properties, making them ideal for use in food applications. The techniques used to characterize the nanoparticles' structure and composition are highly intricate, revealing a unique resonance spectrum at 281 nm for the Al NPs in the ultraviolet-visible spectra. The Fourier transform infrared analysis showed that the cocos nucifera pollen extract contained functional groups of biomolecules. These biomolecules not only reduced the Al NPs but also served as capping agents. According to the HRTEM analyses, the nanoparticles exhibited a spherical shape, were densely packed, and had a size range of 100 nm to 10 nm. In X-ray energy diffraction, the Aluminium (Al) content accounted for 56% of the weight, and the X-ray diffraction analyzed the presence of a face-centred cubic crystalline structure in the formed Al NPs. A dose-dependent profile was observed in the antioxidant activity of the Al NPs, with a significant IC50 value of 43.17%, highlighting their effectiveness in scavenging radicals. The test strains of S.aureus and E. coli were significantly inhibited by the antibacterial properties of the Al NPs. When determining the lethal dose at 10^− 5, the Minimal Inhibitory Concentration and Minimal Bactericidal Concentration are crucial factors to consider. The biofilm inhibition of Escherichia coli (72.46%) compared to staphylococcus aureus (48.55%). The green synthetic nanoparticles occur in food preservation so, the previously mentioned antimicrobial properties to food packaging material can be used as an impressive example. By controlling the spoiling rate of packaged food products and choosing reusable resources, this approach conforms with the environmentally friendly approaches in the food industry. This article summaries the huge potential of Al NPs innovations in maintaining sustainability in food packaging purposes to prevent food spoilage.