Optimized encapsulation of anthocyanin-rich extract from haskap berries (Lonicera caerulea L.) in calcium-alginate microparticles

Giovana Bonat Celli, Amyl Ghanem, Marianne Su Ling Brooks

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30 Citas (Scopus)

Resumen

BACKGROUND: The chemical instability of extracted anthocyanins (ACNs) limits their application and broader use as food colorants and health-promoting functional ingredients. Encapsulation technology can improve ACN stability and widen their potential applications. OBJECTIVE: The objective of this study was to optimize the microencapsulation of ACNs from haskap berries (Lonicera caerulea L.) in calcium-alginate particles by the extrusion/gelation method. METHODS: Response Surface Methodology (RSM) by Box-Behnken (BB) design was used for the optimization, followed by the desirability function. Three input variables were evaluated: concentrations of sodium alginate (x1, w/w %) and calcium chloride (x2, w/v %), and gelation time (x3, min). The responses were encapsulation efficiency (y1, %) and particle size (y2, μm). RESULTS: There was a good fit for the model where encapsulation efficiency was used as a separate response (R2 = 97.98%), however, the model for particle size did not give as good an agreement (R2 = 63.86%). The desirability function was used to optimize the two responses simultaneously and the optimum conditions were determined as 9.0% (w/w) alginate solution, 2.0% (w/v) CaCl2, and 10 min in the gelation solution. CONCLUSIONS: These results illustrate the application of RSM followed by a desirability function to optimize encapsulation parameters for a combined response, where several measures are considered.

Idioma originalEnglish
Páginas (desde-hasta)1-11
Número de páginas11
PublicaciónJournal of Berry Research
Volumen6
N.º1
DOI
EstadoPublished - mar. 11 2016

Nota bibliográfica

Publisher Copyright:
© 2016 - IOS Press and the authors. All rights reserved.

ASJC Scopus Subject Areas

  • Food Science
  • Biochemistry
  • Agronomy and Crop Science
  • Soil Science
  • Plant Science
  • Horticulture

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Celli, G. B., Ghanem, A., & Brooks, M. S. L. (2016). Optimized encapsulation of anthocyanin-rich extract from haskap berries (Lonicera caerulea L.) in calcium-alginate microparticles. Journal of Berry Research, 6(1), 1-11. https://doi.org/10.3233/JBR-150107