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Article

Antimicrobial Activity of Green Silver Nanoparticles Synthesized by Different Extracts from the Leaves of Saudi Palm Tree (Phoenix Dactylifera L.)

by
Jihan F. Al Mutairi
1,
Fatimah Al-Otibi
2,*,
Hassna M. Alhajri
1,
Raedah I. Alharbi
2,
Saud Alarifi
3 and
Seham S. Alterary
1
1
Chemistry Department, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
2
Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
3
Zoology Department, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
*
Author to whom correspondence should be addressed.
Molecules 2022, 27(10), 3113; https://doi.org/10.3390/molecules27103113
Submission received: 27 March 2022 / Revised: 27 April 2022 / Accepted: 28 April 2022 / Published: 12 May 2022
(This article belongs to the Special Issue Plant Extracts: Biological and Pharmacological Activity—the Second Edition)
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Abstract

The Arabian desert is rich in different species of medicinal plants, which approved variable antimicrobial activities. Phoenix dactylifera L. is one of the medical trees rich in phenolic acids and flavonoids. The current study aimed to assess the antibacterial and antifungal properties of the silver nanoparticles (AgNPs) green-synthesized by two preparations (ethanolic and water extracts) from palm leaves. The characteristics of the produced AgNPs were tested by UV-visible spectroscopy and Transmitted Electron Microscopy (TEM). The antifungal activity of Phoenix dactylifera L. was tested against different species of Candida. Moreover, its antibacterial activity was evaluated against two Gram-positive and two Gram-negative strains. The results showed that AgNPs had a spherical larger shape than the crude extracts. AgNPs, from both preparations, had significant antimicrobial effects. The water extract had slightly higher antimicrobial activity than the ethanolic extract, as it induced more inhibitory effects against all species. That suggests the possible use of palm leaf extracts against different pathogenic bacteria and fungi instead of chemical compounds, which had economic and health benefits.
Keywords: Phoenix dactylifera L.; silver nanoparticles; Candida; antimicrobial activities Phoenix dactylifera L.; silver nanoparticles; Candida; antimicrobial activities

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MDPI and ACS Style

Al Mutairi, J.F.; Al-Otibi, F.; Alhajri, H.M.; Alharbi, R.I.; Alarifi, S.; Alterary, S.S. Antimicrobial Activity of Green Silver Nanoparticles Synthesized by Different Extracts from the Leaves of Saudi Palm Tree (Phoenix Dactylifera L.). Molecules 2022, 27, 3113. https://doi.org/10.3390/molecules27103113

AMA Style

Al Mutairi JF, Al-Otibi F, Alhajri HM, Alharbi RI, Alarifi S, Alterary SS. Antimicrobial Activity of Green Silver Nanoparticles Synthesized by Different Extracts from the Leaves of Saudi Palm Tree (Phoenix Dactylifera L.). Molecules. 2022; 27(10):3113. https://doi.org/10.3390/molecules27103113

Chicago/Turabian Style

Al Mutairi, Jihan F., Fatimah Al-Otibi, Hassna M. Alhajri, Raedah I. Alharbi, Saud Alarifi, and Seham S. Alterary. 2022. "Antimicrobial Activity of Green Silver Nanoparticles Synthesized by Different Extracts from the Leaves of Saudi Palm Tree (Phoenix Dactylifera L.)" Molecules 27, no. 10: 3113. https://doi.org/10.3390/molecules27103113

APA Style

Al Mutairi, J. F., Al-Otibi, F., Alhajri, H. M., Alharbi, R. I., Alarifi, S., & Alterary, S. S. (2022). Antimicrobial Activity of Green Silver Nanoparticles Synthesized by Different Extracts from the Leaves of Saudi Palm Tree (Phoenix Dactylifera L.). Molecules, 27(10), 3113. https://doi.org/10.3390/molecules27103113

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