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To determine the free radical scavenging activity of fruit formulation mediated zinc oxide nanoparticle. Zinc oxide nanoparticles are widely known for their antimicrobial agent, anti-diabetic, anti-inflammatory, wound healing, antioxidant and optic properties. Oxidative degradation of lipids, proteins, food and cosmetics involves a radical-chain reaction with release of free radicals. These free radicals are extremely reactive and can even attack relatively stable molecules like the DNA bases. With a recent rise in diseases associated with increased oxidative stress, a good antioxidant seems to be the need of the hour. Synthesis of zinc oxide nanoparticles using Punica granatum and Elettaria cardamomum extract. Characterisation of the nanoparticles using UV–Visible spectroscopy and Scanning electron microscope. It is followed by the DPPH radical scavenging assay to determine the antioxidant activity. With an increase in the concentration of zinc oxide nanoparticles, there was an increase in the percentage of inhibition. When compared to the standard, the zinc oxide nanoparticles showed increased antioxidant activity even in small concentrations. Punica granatum and Elettaria cardamomum mediated Zinc oxide nanoparticles showed considerable antioxidant property even in small quantity when compared with standard vitamin C. Further studies need to be carried out to check for its potency as a prophylactic agent.
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