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

ALANGARI, Abdulaziz, ALQAHTANI, Mohammed S., SHAHID, Mudassar, SYED, Rabbani, GOEL, Mukesh, LAKSHMIPATHY, R. and KAUR, Kirtanjot (2024). Green synthesis of FeO nanoparticles from coffee and its application for antibacterial, antifungal, and anti-oxidation activity. Green Processing and Synthesis, 13 (1).

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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 Escherichia coli and Staphylococcus aureus, as well as antifungal activity against Aspergillus niger. 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.

Item Type: Article
Additional Information: ** Article version: VoR ** From De Gruyter via Jisc Publications Router ** Licence for VoR version of this article: ** Peer reviewed: TRUE ** Acknowledgements: The authors extend their appreciation to the Researchers Supporting Project number (RSPD2024R739) at King Saud University, Riyadh, Saudi Arabia. **Journal IDs: eissn 2191-9550 **Article IDs: publisher-id: gps-2023-0268 **History: published_online 29-04-2024; issue 29-04-2024; accepted 01-04-2024; cover-date 01-01-2024; submitted 26-12-2023 **License for this article: open-access,
Uncontrolled Keywords: green synthesis, anti-microbial, anti-oxidation, iron oxide nanoparticles, coffee
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SWORD Depositor: Colin Knott
Depositing User: Colin Knott
Date Deposited: 29 Apr 2024 16:18
Last Modified: 29 Apr 2024 16:18

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