AAPS PharmSciTech

, 20:283 | Cite as

Redispersible Spray-Dried Powder Containing Nanoencapsulated Curcumin: the Drying Process Does Not Affect Neuroprotection In vitro

  • Diego Fontana de Andrade
  • Branko Vukosavljevic
  • Juliana Bender Hoppe
  • Adriana Raffin Pohlmann
  • Sílvia Stanisçuaski Guterres
  • Maike Windbergs
  • Irene Külkamp-Guerreiro
  • Christianne Gazzana Salbego
  • Ruy Carlos Ruver BeckEmail author
Research Article


A redispersible spray-dried formulation containing curcumin-loaded, lipid-core nanocapsules (LNC-C) was developed for oral administration. The neuroprotective activity of curcumin after the spray-drying process was evaluated in vitro. The spray-dried powder (SD-LNC-C) was produced using a drying adjuvant composed of a blend of maltodextrin and l-leucine (90:10 w/w). Acceptable process yield (~ 70%) and drug content (6.5 ± 0.2 mg g−1) were obtained. SD-LNC-C was formed by smooth, spherical-shaped particles, and confocal Raman analysis indicated the distribution of the LNC-C on the surface of the leucine/maltodextrin agglomerates. The surface of the agglomerates was formed by a combination of LNC-C and adjuvants, and laser diffraction showed that SD-LNC-C had adequate aqueous redispersion, with no loss of controlled drug release behaviour of LNC-C. The in vitro curcumin activity against the lipopolysaccharide (LPS)-induced proinflammatory response in organotypic hippocampal slice cultures was evaluated. Both formulations (LNC-C and SD-LNC-C) reduced TNF-α to similar levels. Therefore, neuroprotection of curcumin in vitro may be improved by nanoencapsulation followed by spray-drying, with no loss of this superior performance. Hence, the redispersible spray-dried powder proposed here represents a suitable approach for the development of innovative nanomedicines containing curcumin for the prevention/treatment of neurodegenerative diseases.


curcumin nanocapsules neuroinflammation powders spray-drying 



The authors gratefully receive the financial support of CAPES/Probral, CAPES (Finance Code 001), CNPq, FAPERGS, INCT_IF and the German Academic Exchange Service (DAAD). A PhD Fellowship was provided by CAPES-Brazil to D. F. de Andrade.

Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.

Supplementary material

12249_2019_1501_MOESM1_ESM.pdf (200 kb)
ESM 1 (PDF 199 kb)


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Copyright information

© American Association of Pharmaceutical Scientists 2019

Authors and Affiliations

  • Diego Fontana de Andrade
    • 1
  • Branko Vukosavljevic
    • 2
  • Juliana Bender Hoppe
    • 3
  • Adriana Raffin Pohlmann
    • 1
    • 4
  • Sílvia Stanisçuaski Guterres
    • 1
  • Maike Windbergs
    • 2
    • 5
  • Irene Külkamp-Guerreiro
    • 1
  • Christianne Gazzana Salbego
    • 3
  • Ruy Carlos Ruver Beck
    • 1
    • 6
    Email author
  1. 1.Programa de Pós-Graduação em Ciências FarmacêuticasUniversidade Federal do Rio Grande do SulPorto AlegreBrazil
  2. 2.Department of Drug DeliveryHelmholtz Centre for Infection Research (HZI) and Helmholtz Institute for Pharmaceutical Research Saarland (HIPS)SaarbrueckenGermany
  3. 3.Departamento de BioquímicaUniversidade Federal do Rio Grande do SulPorto AlegreBrazil
  4. 4.Instituto de QuímicaUniversidade Federal do Rio Grande do SulPorto AlegreBrazil
  5. 5.Institute of Pharmaceutical Technology and Buchmann Institute for Molecular Life SciencesGoethe UniversityFrankfurt am MainGermany
  6. 6.Departamento de Produção e Controle de MedicamentosUniversidade Federal do Rio Grande do SulPorto AlegreBrazil

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