Nanomaterials (Jul 2022)

Nanoencapsulation of Eggplant (<i>Solanum melongena</i> L.) Peel Extract in Electrospun Gelatin Nanofiber: Preparation, Characterization, and In Vitro Release

  • Danya Elizabeth Estrella-Osuna,
  • José Agustín Tapia-Hernández,
  • Saúl Ruíz-Cruz,
  • Enrique Márquez-Ríos,
  • José de Jesús Ornelas-Paz,
  • Carmen Lizette Del-Toro-Sánchez,
  • Víctor Manuel Ocaño-Higuera,
  • Francisco Rodríguez-Félix,
  • María Isabel Estrada-Alvarado,
  • Luis Alberto Cira-Chávez

DOI
https://doi.org/10.3390/nano12132303
Journal volume & issue
Vol. 12, no. 13
p. 2303

Abstract

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This study describes the preparation and characterization of eggplant peel extract-loaded electrospun gelatin nanofiber and study of its in vitro release. Results obtained by scanning electron microscopy (SEM) and transmission electronic microscopy (TEM) micrograph revealed that eggplant peel extract-loaded electrospun gelatin nanofiber is in nanometric range with an average diameter 606.7 ± 184.5 and 643.6 ± 186.7 nm for 20 and 33.3 mg mL−1 of extract addition, respectively. Moreover, the incorporation of extract improved morphology by being smooth, homogeneous, and without account formation compared to nanofibers without extract (control). Fourier transform-infrared (FT-IR) spectra indicated that interaction exists between electrospun gelatin nanofiber and eggplant peel extract by hydrogen bond interactions, mainly. Electrospun gelatin nanofibers showed encapsulation efficiency greater than 90% of extract and a maximum release of 95 and 80% for the medium at pH 1.5 and 7.5, respectively. Therefore, the electrospinning technique is a good alternative for the conservation of bioactive compounds present in the eggplant peel through electrospun gelatin nanofiber.

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