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Multilayer Bixin Microcapsules: The Impact of Native Carbohydrates on the Microencapsulation Efficiency and Dispersion Stability

Bixin is a hydrophobic carotenoid present in the integument of the seeds of Bixa orellana. Microencapsulation was applied to obtain water dispersible formulations and protect the colorant against degradation. Microencapsulated systems were obtained by spray-drying a mild alkaline bixin dispersion wi...

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Autores principales: Curi-Borda, Cecilia K., Linares-Pastén, Javier A., Tat, Tuba, Tarqui-Dueñas, Rosmery, Chino-Flores, Ninoska, Alvarado, Juan-Antonio, Bergenstahl, Bjorn
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6463031/
https://www.ncbi.nlm.nih.gov/pubmed/30909470
http://dx.doi.org/10.3390/foods8030108
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author Curi-Borda, Cecilia K.
Linares-Pastén, Javier A.
Tat, Tuba
Tarqui-Dueñas, Rosmery
Chino-Flores, Ninoska
Alvarado, Juan-Antonio
Bergenstahl, Bjorn
author_facet Curi-Borda, Cecilia K.
Linares-Pastén, Javier A.
Tat, Tuba
Tarqui-Dueñas, Rosmery
Chino-Flores, Ninoska
Alvarado, Juan-Antonio
Bergenstahl, Bjorn
author_sort Curi-Borda, Cecilia K.
collection PubMed
description Bixin is a hydrophobic carotenoid present in the integument of the seeds of Bixa orellana. Microencapsulation was applied to obtain water dispersible formulations and protect the colorant against degradation. Microencapsulated systems were obtained by spray-drying a mild alkaline bixin dispersion with different encapsulating materials. The encapsulation trials were performed with and without native carbohydrates of the integument in addition to the main encapsulant. It was possible to dry dispersions with up to 10% bixin counted on total solids. All the studied systems were characterized by colorimetry, UV-vis spectroscopy, Scanning Electron Microscopy, light microscopy, turbidometric sedimentation analyses and laser light diffraction analyses. All the systems showed aqueous dispersibility but displayed differences in their transparency, UV-vis spectra and physical stability at pH 3. The results show that the native carbohydrates enhance the encapsulation efficiency of other encapsulating materials. The chemical composition of this native carbohydrate fraction shows the presence of polysaccharides containing arabinose, galactose and glucose as monomers. Starch was identified enzymatically. The native carbohydrates allowed the encapsulation of bixin in its native microcrystalline form, resulting in a multilayer structure after spray-drying. In addition, the colorant particles displayed dispersibility under acidic aqueous conditions suggesting that they are stabilized by the native carbohydrates after the microcapsules are dissolved.
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spelling pubmed-64630312019-04-16 Multilayer Bixin Microcapsules: The Impact of Native Carbohydrates on the Microencapsulation Efficiency and Dispersion Stability Curi-Borda, Cecilia K. Linares-Pastén, Javier A. Tat, Tuba Tarqui-Dueñas, Rosmery Chino-Flores, Ninoska Alvarado, Juan-Antonio Bergenstahl, Bjorn Foods Article Bixin is a hydrophobic carotenoid present in the integument of the seeds of Bixa orellana. Microencapsulation was applied to obtain water dispersible formulations and protect the colorant against degradation. Microencapsulated systems were obtained by spray-drying a mild alkaline bixin dispersion with different encapsulating materials. The encapsulation trials were performed with and without native carbohydrates of the integument in addition to the main encapsulant. It was possible to dry dispersions with up to 10% bixin counted on total solids. All the studied systems were characterized by colorimetry, UV-vis spectroscopy, Scanning Electron Microscopy, light microscopy, turbidometric sedimentation analyses and laser light diffraction analyses. All the systems showed aqueous dispersibility but displayed differences in their transparency, UV-vis spectra and physical stability at pH 3. The results show that the native carbohydrates enhance the encapsulation efficiency of other encapsulating materials. The chemical composition of this native carbohydrate fraction shows the presence of polysaccharides containing arabinose, galactose and glucose as monomers. Starch was identified enzymatically. The native carbohydrates allowed the encapsulation of bixin in its native microcrystalline form, resulting in a multilayer structure after spray-drying. In addition, the colorant particles displayed dispersibility under acidic aqueous conditions suggesting that they are stabilized by the native carbohydrates after the microcapsules are dissolved. MDPI 2019-03-22 /pmc/articles/PMC6463031/ /pubmed/30909470 http://dx.doi.org/10.3390/foods8030108 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Curi-Borda, Cecilia K.
Linares-Pastén, Javier A.
Tat, Tuba
Tarqui-Dueñas, Rosmery
Chino-Flores, Ninoska
Alvarado, Juan-Antonio
Bergenstahl, Bjorn
Multilayer Bixin Microcapsules: The Impact of Native Carbohydrates on the Microencapsulation Efficiency and Dispersion Stability
title Multilayer Bixin Microcapsules: The Impact of Native Carbohydrates on the Microencapsulation Efficiency and Dispersion Stability
title_full Multilayer Bixin Microcapsules: The Impact of Native Carbohydrates on the Microencapsulation Efficiency and Dispersion Stability
title_fullStr Multilayer Bixin Microcapsules: The Impact of Native Carbohydrates on the Microencapsulation Efficiency and Dispersion Stability
title_full_unstemmed Multilayer Bixin Microcapsules: The Impact of Native Carbohydrates on the Microencapsulation Efficiency and Dispersion Stability
title_short Multilayer Bixin Microcapsules: The Impact of Native Carbohydrates on the Microencapsulation Efficiency and Dispersion Stability
title_sort multilayer bixin microcapsules: the impact of native carbohydrates on the microencapsulation efficiency and dispersion stability
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6463031/
https://www.ncbi.nlm.nih.gov/pubmed/30909470
http://dx.doi.org/10.3390/foods8030108
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