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Green Synthesis of ZnO Nanoparticles Using Caesalpinia sappan Leaf Extracts and its Antibacterial Activity on Ralstonia solanacearum
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Green Synthesis of ZnO Nanoparticles Using Caesalpinia sappan Leaf Extracts and its Antibacterial Activity on Ralstonia solanacearum

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Abstract:

Abstract. Zinc oxide nanoparticles (ZnO NPs) are known to be one of the multifunctional inorganic nanoparticles with its application in the treatment of bacterial pathogens, especially when synthesized through green nanotechnology. In this study, ZnO NPs were successfully synthesized through co-precipitation method and its antibacterial activity against Ralstonia solanacearum was evaluated. Surface morphology through scanning electron microscope (SEM) exhibited an agglomerated rod-like structures, with a mean particle size of 180.9 nm. Phytochemical screening was performed through various chemical qualitative tests, to which the presence of terpenoids and cardiac glycosides in Caesalpinia sappan leaves was confirmed in the aqueous extract. Five treatments were evaluated against R. Solanacearum in terms of their zone of inhibition. The highest zone of inhibition from the different concentrations was observed from the positive control (Gentamicin) with a mean value of 34.47 mm, followed by 0.57 g/mL ZnO NPs with a mean value of 21.69 mm, and no zone of inhibition on the negative control, 0.28 g/mL, and 0.19 g/mL of synthesized ZnO NPs. Antibacterial activity of ZnO using disc diffusion method resulted in a significant zone of inhibition which proves that synthesized nanoparticles can be used as a potent antibacterial agent against R. solanacearum.

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Journal of Biomimetics, Biomaterials and Biomedical Engineering Vol. 52 View Preview

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Periodical:

Journal of Biomimetics, Biomaterials and Biomedical Engineering (Volume 52)

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11-19

DOI:

https://doi.org/10.4028/www.scientific.net/JBBBE.52.11

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Online since:

August 2021

Authors:

Paul Jhon G. Eugenio*, Marilou M. Sarong, Keit Sean Amir M. Rapanit, John Christian Gerard S. Galande, John Francis Nilo, Juvy J. Monserate

Keywords:

Antibacterial, Leaf Extracts, Ralstonia solanacearum, Vascular Bacterial Wilt Disease, ZnO Nanoparticles

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