Research Article

Utilizing Plackett–Burman and Box–Behnken Designs for Plant Extract–Based AgNP Synthesis Optimization: Unveiling Antifungal Potential Against Phytophthora Species

Volume: 28 Number: 2 March 27, 2025
EN TR

Utilizing Plackett–Burman and Box–Behnken Designs for Plant Extract–Based AgNP Synthesis Optimization: Unveiling Antifungal Potential Against Phytophthora Species

Abstract

This study optimized a green synthesis method for silver nanoparticles (AgNPs) using aqueous extracts of black tea, linden, cherry laurel, kale, and melocan, employing a statistical design of experiments. The plant extracts acted as bio-reducing agents. Total and individual phenolic compounds in the extracts were quantified using ultraviolet-visible (UV–Vis) spectroscopy and ultra-high-performance liquid chromatography (UHPLC). AgNP yields were maximized through a combination of Plackett–Burman and Box–Behnken designs. The synthesized AgNPs were characterized by UV–Vis spectroscopy, Fourier transform infrared (FT–IR) spectroscopy, scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM). Optimal AgNP production was achieved under the following conditions (determined by response surface methodology, RSM): 9.6 g of plant material, extraction heating at 80°C for 20 minutes, 10 mM AgNO3, 2.5 mL of extract, 800 W microwave irradiation, and a 90-second reaction time. FT–IR analysis confirmed the role of phenolic compounds in reducing and stabilizing AgNPs. The resulting AgNPs exhibited uniform spherical morphology, with average particle sizes of 5.30 nm (black tea), 8.74 nm (linden), 7.20 nm (cherry laurel), 6.32 nm (kale), and 9.44 nm (melocan). Antifungal assays against five Phytophthora species revealed that kale-derived AgNPs were most potent, with EC50, MIC, and MFC values ranging from 9.28–30.84 µg mL−1, 200–300 µg mL−1, and 200–400 µg mL−1, respectively. These results suggest that plant-extract-synthesized AgNPs offer a sustainable approach to managing Phytophthora diseases, warranting further research.

Keywords

Supporting Institution

Ordu Üniversitesi BAP

Project Number

B2209

Thanks

The author is grateful to Dr. İlker Kurbetli for supplying the Phytophthora isolates, Dr. Umut Ateş for performing high-performance liquid chromatography (HPLC) analysis of the total phenolic content and individual phenolic compounds in the plant extracts, and Dr. Hamdi Güray Kutbay for confirming the identification of melocan (Smilax excelsa L.).

References

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Details

Primary Language

English

Subjects

Phytopathology

Journal Section

Research Article

Early Pub Date

March 20, 2025

Publication Date

March 27, 2025

Submission Date

July 28, 2024

Acceptance Date

February 17, 2025

Published in Issue

Year 1970 Volume: 28 Number: 2

APA
Türkkan, M. (2025). Utilizing Plackett–Burman and Box–Behnken Designs for Plant Extract–Based AgNP Synthesis Optimization: Unveiling Antifungal Potential Against Phytophthora Species. Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi, 28(2), 516-534. https://doi.org/10.18016/ksutarimdoga.vi.1523681

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