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Biosynthesis of organic nanocomposites from Pistacia chinensis shell

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Document pages: 18 pages

Abstract: In this paper, a rapid and simple method for the synthesis of copper nanoparticles (cunps) is introduced. Pistachio shell extract has been used as reducing agent and stabilizer in the preparation of cunps. This biosynthesis is a carrier of the environment, because no chemical reagent is used to prepare nanoparticles. On the other hand, it prevents the release of pistachio waste in nature and its adverse effects on nature. The synthesized cunps and cunps silver Schiff base nanocomposites (css-nc) were characterized by UV-vis spectroscopy, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray spectroscopy (EDS). The antibacterial activities of cunp and css-nc were detected by well diffusion method and assayIC methods against four bacteria Staphylococcus aureus, Bacillus cereus, Escherichia coli, and Pseudomonas aeruginosa and two fungi Aspergillus Niger and Candida albicans. CuNPs and CSS NC showed significant antimicrobial activity on the samples, preventing the growth of bacteria and fungi at very low concentrations. CuNPs and CSS NC had the greatest effect on Escherichia coli bacteria and Aspergillus niger fungi. Phenolic compounds are one of the most important antioxidants that are involved in various fields, including pharmacy. Pistacia vera hull is a rich source of phenolic compounds. In this study, the most phenolic compound in Pistacia vera hull is gallic acid and rutin, which has been identified by HPLC analysis. In this study, Pistacia vera hull essential oil analysis was performed by the GC-MS method, in which α-pinene, D-limonene, and isobornyl acetate compounds constitute the highest percentage of Pistacia vera hull essential oil.

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