Synthesis of silver nanoparticles from pericarp of Ziziphus jujuba Mill. and their in vitro antimicrobial activity
Keywords:Antimicrobial, FTIR, SEM, Silver nanoparticles, XRD, Ziziphus jujuba, UV-Vis
Silver nanoparticles (AgNPs) used in this study were prepared from Ziziphus jujuba Mill. aqueous pericarp extract. Potent antibacterial activity was recorded from AgNPs–Z. jujuba pericarp against P. Pseudomonas aeruginosa > K. Klebsiella pneumoniae > M. Micrococcus luteus > S. Staphylococcus aureus > P. Proteus mirabilis > S. Shigella flexneri. Less antifungal activity was found against phytopathogenic fungi with inhibition efficacy of P. Penicillium expansum > M. Macrophomina phaseolina > A. Alternaria alternata > D. Drechslera halodes, F. Fusarium oxysporum f. sp. lycopersici. UV-Vis spectral analysis of formed AgNPs– Z. jujuba was recorded at 450 nm and three characteristic diffraction peaks observed at 2Φ =38.235, 43.95 and 64.42. FTIR patterns were located in the region of 4000–400 cm−1 and AgNPs particle size were noticed in between 20 and 71 nm with spherical shape embedded in bio-materials. These findings indicate that AgNPs–Z. jujuba pericarp aqueous extract could be utilized to control various bacterial infections to human and as well as against phytopathogenic fungi.
Bangladesh J. Bot. 51(2): 305-312, 2022 (June)
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