Skip to main content

Advertisement

Log in

Spray-dried chitosan/nanocellulose microparticles: synergistic effects for the sustained release of NPK fertilizer

  • Original Research
  • Published:
Cellulose Aims and scope Submit manuscript

Abstract

Enhanced efficiency fertilizers help to provide desirable nutrients to plants and release them in a prolonged time. The public concern about environmental protection and efficiency in the use of resources has increased the need to produce eco-friendly and high-performance products. In this work, we report the preparation and properties of the sustained release of spray-dried microparticles based on two biopolymers, chitosan, and nanocellulose. Cellulose rich solid was isolated from waste sugarcane bagasse by chlorine-free alkali peroxide procedure, yielding solids at 45.2%. Nanocellulose with sulfate groups attached on its surface was obtained by acid hydrolysis, and then it was incorporated into chitosan (CS) and NPK fertilizer solution, followed by spray drying to yield microparticles. The CS microparticles caused a decrease in the initial release rate of NPK, which resulted in extended-release of the entrapped nutrients (around 2 h). The incorporation of 10 wt.% nanocellulose to microparticles provided the most significant reduction on fertilizer release rate within 5 h. The work demonstrates the potential use of sulfated nanocellulose in biopolymeric matrices to design enhanced fertilizer release systems.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

References

Download references

Acknowledgments

The funding for the present work was provided by CAPES and FAPESP foundations: Finance Code 001, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES); Grant No. 2017/03980-7 and 2019/02535-5, São Paulo Research Foundation (FAPESP). R.F. is CNPq researcher. The authors also thank the Laboratory of Structural Characterization (LCE-DEMa/UFSCar) and Brazilian Nanotechnology National Laboratory (LNNano-CNPEM) for the microscopy facilities.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Roselena Faez.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Messa, L.L., Faez, R. Spray-dried chitosan/nanocellulose microparticles: synergistic effects for the sustained release of NPK fertilizer. Cellulose 27, 10077–10093 (2020). https://doi.org/10.1007/s10570-020-03482-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10570-020-03482-2

Keywords

Navigation