Abstract
The present work focuses on the biosynthesis of silver as well as gold nanoparticles using matured Areca catechu (areca nut) husk extract and study on their functional properties. Change in the colour of the extract from pale-yellow to orange and purple, surface plasmon resonance in the region of 400-450 nm and 500-550 nm, respectively indicated the formation of silver and gold nanoparticles. When subjected to the anticandidal test, it was found that the nanoparticles could inhibit the growth of Candida albicans, where an inhibition zone of 9 mm and 6 mm was observed for silver and gold nanoparticles respectively. It was found that silver and gold nanoparticles exhibit better antioxidant capacity than the husk extract. These antioxidant properties of nanoparticles can be used in the production of various pharmaceutical and cosmetic products. Using this approach, areca nut husk can be put into good use, which otherwise, is treated as waste.
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