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Biogenic silver nanoparticles and cinnamaldehyde as an effective sanitizer for fresh sweet grape tomatoes

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Abstract

This study evaluated the antibacterial activity of cinnamaldehyde (CIN) and biogenic silver nanoparticles (BioAgNP), alone and in combination, against Escherichia coli, Salmonella Typhimurium, and Staphylococcus aureus in vitro. Their sanitation activities on fresh sweet grape tomatoes were also evaluated. CIN and BioAgNP inhibited the growth of the tested bacteria, and at low concentrations, their combinations presented a synergistic effect. In the sanitization of fresh sweet grape tomatoes, CIN (156 µg/mL) combined with BioAgNP (31.25 µM) at subinhibitory concentrations inhibited the growth of E. coli after only 5 min of contact. Exposed samples showed no growth of E. coli during their shelf life. The combination of these compounds did not change significantly (p > 0.05) the physicochemical properties of sweet grape tomatoes and showed that CIN combined with BioAgNP could represent an effective method for decontaminating fruits and vegetables. This combination has great potential for application in the prevention of foodborne diseases.

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The data supporting the findings of this study will be available on request from the corresponding author. Due to privacy or ethical restrictions, the data are not publicly available.

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Acknowledgements

The authors would like to thank the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – CAPES for a scholarship granted to the first author.

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Conceptualization: AFPB, JMGM; Methodology: AFPB, JMGM, JSP; Formal analysis and investigation: AFPB, JSP, LCMR; Writing: AFPB; Original draft preparation: AFPB, AFS, JMGM; review and editing: BAAF, JVV, JMGM; Funding acquisition: JMGM; Resources: RKTK, GN, JMGM; Supervision: RKTK, GN, JMGM; All the authors viewed and approved the final version of the manuscript. AFPB, RKTK, GN and JMGM contributed equally to this study.

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Correspondence to Andreia Farias Pereira Batista.

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Batista, A.F.P., Rosa, L.C.M., Pizzo, J.S. et al. Biogenic silver nanoparticles and cinnamaldehyde as an effective sanitizer for fresh sweet grape tomatoes. J Food Sci Technol 60, 2477–2485 (2023). https://doi.org/10.1007/s13197-023-05770-8

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  • DOI: https://doi.org/10.1007/s13197-023-05770-8

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