Biogenic Synthesis and Primary Characterization of Silver Nanoparticles Using Aqueous Extract of Unripe Banana Peel; In Vitro Assessment on Antioxidant and Antibacterial Properties

Adesipe-Olugbemi, Iyanuoluwa Temidayo and OMOTAYO, OLAKUNLE (2020) Biogenic Synthesis and Primary Characterization of Silver Nanoparticles Using Aqueous Extract of Unripe Banana Peel; In Vitro Assessment on Antioxidant and Antibacterial Properties. Tropical Journal of Natural Product Research, 4 (11). pp. 990-994. ISSN 2616-0684

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Abstract

The incidence of many life-threatening diseases has been linked to oxidative stress and infectious organisms. The present work investigated the synthesis of silver nanoparticles (AgNPs) using unripe banana peel aqueous extract (UBPE) and assayed for its antioxidant property and antibacterial activity. AgNPs were synthesized from 1 mM AgNO3 solution through the aqueous extract of unripe banana peel. The primary characterization of synthesized silver nanoparticles was done using UV-Visible spectroscopy. The antioxidant and antibacterial properties of the synthesized AgNPs were carried out using standard methods of analysis. The colourless reaction mixture of the AgNO3 solution and UBPE turned yellowish brown and displayed UV-Visible spectra of 421 nm which is characteristic of silver nanoparticles. The antioxidant assay revealed that the synthesized AgNPs have a total phenol content of 70.64 ±0.27 mg GAE/g of extract and showed maximum scavenging activity against DPPH when compared to the standard with IC50 of 59.93 μg/mL. The present study also revealed that the AgNPs prepared from UBPE had an equal zone of inhibition as the standard antibacterial drug used against E.coli but showed a greater zone of inhibition of 37 mm than the standard drug with a zone of inhibition of 31 mm against S. aureus. AgNPs synthesized from UBPE could therefore be utilized in the management of life-threatening diseases caused by oxidative stress and harmful pathogens.

Item Type:	Article
Subjects:	Q Science > QD Chemistry Q Science > QR Microbiology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Mr. Bolanle Yisau I.
Date Deposited:	22 Feb 2022 18:57
Last Modified:	22 Feb 2022 18:57
URI:	http://eprints.federalpolyilaro.edu.ng/id/eprint/1962

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