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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
Authors
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
Cited By
Application of response surface methodology for green synthesis of silver nanoparticles using Prunus mahaleb L.
Frontiers in Life Sciences and Related Technologies
https://doi.org/10.51753/flsrt.1665073
