Valorization of Garambullo in Green Synthesis of Silver Nanoparticles: Phytochemical Complexity Effect and Antioxidant Capacity Against Quercetin

Authors

  • María Guadalupe Lopéz Cortés
  • Ma. Cristina Irma Pérez-Pérez
  • José Amir González-Calderón
  • Gerardo Teniente-Martínez https://orcid.org/0000-0001-8649-845X
  • Sandra Herrera-Pérez
  • Susana Almanza-Rangel

DOI:

https://doi.org/10.29105/idcyta.v11i2.172

Keywords:

Antimicrobial activity, antioxidant capacity, green synthesis, garambullo (Myrtillocactus geometrizans), silver nanoparticles

Abstract

The potential of garambullo (Myrtillocactus geometrizans) as a reducing and stabilizing agent in the green synthesis of silver nanoparticles (AgNPs) was evaluated in comparison with commercial and reagent-grade quercetin. The extract exhibited a phenolic compound content of 60.893 mg GAE/100 g, higher than in previous reports, as reflected in high antioxidant capacities (1559.11 µM TE/100 g by ABTS and 1016.50 µM TE/100 g by DPPH). AgNPs formation was confirmed by UV-Vis spectroscopy, revealing a characteristic plasmon around 430 nm, as well as a color change indicative of Ag⁺ reduction. Systems with garambullo showed greater colloidal stability over time, while systems with quercetin showed a greater tendency to agglomerate. In the antimicrobial evaluation, AgNPs synthesized from garambullo showed greater activity against Staphylococcus aureus, with inhibition zones up to 26.23 ± 0.25 mm, while inhibition against Escherichia coli was lower (14.49 ± 0.45 mm), attributed to its cellular structure. These results demonstrate that the phytochemical complexity of garambullo favors both the synthesis and stability of AgNPs, highlighting its potential as a sustainable alternative for applications in the food sector.

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References

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Published

2026-08-01

How to Cite

Lopéz Cortés, M. G., Pérez-Pérez, M. C. I., González-Calderón, J. A., Teniente-Martínez, G., Herrera-Pérez, S., & Almanza-Rangel, S. (2026). Valorization of Garambullo in Green Synthesis of Silver Nanoparticles: Phytochemical Complexity Effect and Antioxidant Capacity Against Quercetin. Revista Investigación Y Desarrollo En Ciencia Y Tecnología De Alimentos, 11(2), 54–64. https://doi.org/10.29105/idcyta.v11i2.172

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