Green synthesis of FeO nanoparticles from coffee and its application for antibacterial, antifungal, and anti-oxidation activity

• Published in: Green processing and synthesis 2024-04, Vol.13 (1), p.674-7
• Main Authors: Alangari, Abdulaziz, Alqahtani, Mohammed S., Shahid, Mudassar, Syed, Rabbani, Goel, Mukesh, Lakshmipathy, R., Kaur, Kirtanjot
• Format: Article
• Language: English
• Subjects: Acarbose; anti-microbial; anti-oxidation; Antifungal activity; Antimicrobial activity; Antioxidants; Coffee; Diabetes mellitus; E coli; Fungi; Fungicides; Glucosidase; green synthesis; iron oxide nanoparticles; Iron oxides; Microorganisms; Microscopy; Nanoparticles; Nanotechnology; Oxidation; Pharmaceutical sciences; Pharmacy; Phytochemicals; Production methods; R&D; Research & development; Scanning electron microscopy; Seeds; Transmission electron microscopy; X-ray diffraction; α-Amylase; α-Glucosidase
• ISSN: 2191-9550; 2191-9542; 2191-9550
• DOI: 10.1515/gps-2023-0268

This study presents a sustainable method for producing iron oxide nanoparticles (FeO NPs) using aqueous extracts from coffee seeds. Characterization through X-ray diffraction (XRD), scanning electron microscopy, and transmission electron microscopy (TEM) revealed non-spherical NPs ranging from 30 to 50 nm. The XRD analysis confirmed that the face-centred cubic structure and the Debye–Scherrer’s crystalline size support the FeO particle size confirmed from TEM. The synthesized NPs demonstrated significant antimicrobial activity against and , as well as antifungal activity against . Additionally, they exhibited potent antioxidant properties, effectively inhibiting DPPH, α-amylase, and α-glucosidase compared to acarbose and coffee extract. The findings suggest that these FeO NPs hold promise as antimicrobial, antioxidant, antifungal, and potentially antidiabetic agents.