Nanoencapsulation of Eggplant (Solanum melongena 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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

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.

Original languageEnglish
Article number2303
JournalNanomaterials
Volume12
Issue number13
DOIs
StatePublished - 1 Jul 2022
Externally publishedYes

Bibliographical note

Funding Information:
Acknowledgments: The authors acknowledge the Technological Institute of Sonora for financial support (PROFAPI 2020-0608) and Teacher Professional Development Program (PRODEP). We gratefully acknowledge the Mexican Council for Science and Technology (Conacyt) for the postgraduate scholarship granted to the first author.

Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • eggplant peel
  • electrospun
  • gelatin
  • in vitro release
  • nanofiber

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