Polymer Bulletin

, Volume 75, Issue 11, pp 5305–5319 | Cite as

Effect of pH and temperature on the release kinetics of urea from wheat-gluten membranes obtained by electrospinning

  • R. F. Dórame-Miranda
  • D. E. Rodríguez-Félix
  • G. A. López-Ahumada
  • D. D. Castro-Enriquez
  • J. M. Quiroz-Castillo
  • E. Márquez-Ríos
  • F. Rodríguez-Félix
Original Paper


Optimal usage of urea-based fertilizers can increase their use efficiency and reduce pollution. A new alternative for prolonged-release (PR) urea based on wheat-gluten (WG) membranes obtained by electrospinning was studied. The effect of pH and temperature on the release rate of urea and its transport mechanisms were evaluated. At pH 4, 7, and 10, the equilibration times obtained were 1, 3, and 5 h, respectively. Additionally, at a higher temperature, a larger amount of urea was released into the medium. The Ritger–Peppas model suggests that with pH 4 and pH 10, at 25 °C, there is an anomalous diffusion mechanism. On the other hand, the remainder of the release conditions tested showed a release mechanism of urea by simple diffusion. According to the results, a potential application of these wheat-gluten membranes on the release system of urea for soils with pH 7 and soil temperatures between 25 and 40 °C is proposed.

Graphical Abstract


Wheat-gluten membranes Electrospinning Urea release Ritger–Peppas model 



The authors greatly appreciate the economic support of CONACYT through Basic Science Project 178436, and also that of the University of Sonora. Ramón Dórame-Miranda is grateful to CONACYT for the scholarship.

Compliance with ethical standards

Conflict of interest

The authors declare they have no conflict of interest.

Supplementary material

289_2018_2327_MOESM1_ESM.docx (274 kb)
Supplementary material 1 (DOCX 274 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • R. F. Dórame-Miranda
    • 1
  • D. E. Rodríguez-Félix
    • 2
  • G. A. López-Ahumada
    • 1
  • D. D. Castro-Enriquez
    • 1
  • J. M. Quiroz-Castillo
    • 3
  • E. Márquez-Ríos
    • 1
  • F. Rodríguez-Félix
    • 1
  1. 1.Departamento de Investigación y Posgrado en AlimentosUniversidad de SonoraHermosilloMexico
  2. 2.Departamento de Investigación en Polímeros y MaterialesUniversidad de SonoraHermosilloMexico
  3. 3.Departamento de Ingeniería Ambiental IndustrialUniversidad Estatal de SonoraHermosilloMexico

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