Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue.

Autor: Zaater, Abdelmalek, Oualid Serhoud, Mohammed, Ben Amor, Ilham, Zeghoud, Soumeia, Hemmami, Amira, Rebiai, Abdelkrim, Bouras, Yacine, Touhami Laiche, Ammar, Alsalme, Ali, Cornu, David, Bechelany, Mikhael, Barhoum, Ahmed, Xiaofang Liu, Kumar Ghosh, Mithun
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Zdroj: Frontiers in Chemistry; 2024, p01-15, 15p
Abstrakt: Ephedra alata leaf extracts have therapeutic properties and contain various natural compounds known as phytochemicals. This study assessed the phytochemical content and antioxidant effects of a Ephedra alata leaf extract, as well as zinc oxide (ZnO) nanoparticle production. The extract contained phenolic acids, including vanillic acid, chlorogenic acid, gallic acid, p-coumaric acid, vanillin and rutin. Its total phenolic content and total flavonoid content were 48.7 ± 0.9 mg.g-1 and 1.7 ± 0.4 mg.g-1, respectively. The extract displayed a DPPH inhibition rate of 70.5%, total antioxidant activity of 49.5 ± 3.4 mg.g-1, and significant antimicrobial activity toward Gram-positive and negative bacteria. The synthesized ZnO nanoparticles had spherical shape, crystallite size of 25 nm, particle size between 5 and 30 nm, and bandgap energy of 3.3 eV. In specific conditions (90 min contact time, pH 7, and 25°C), these nanoparticles efficiently photodegraded 87% of methylene blue, suggesting potential applications for sustainable water treatment and pollution control. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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