Encapsulation of a free-solvent extract of lycopene in alginate-Ca(II) beads containing sugars and biopolymers

Background: The purpose of the present study was to enhance the stability toward isomerization and control the release of an encapsulated free-solvent extract of lycopene, obtained from a nonconventional natural source, by means of alginate beads containing sugar (trehalose) and biopolymers (chitosa...

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Autor principal: Santagapita, Patricio Román
Publicado: 2017
Materias:
Carotenoids
Isomerization
Molecular mobility
Transport properties
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21965641_v4_n1_p_AguirreCalvo
http://hdl.handle.net/20.500.12110/paper_21965641_v4_n1_p_AguirreCalvo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_21965641_v4_n1_p_AguirreCalvo
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spelling paper:paper_21965641_v4_n1_p_AguirreCalvo2023-06-08T16:35:10Z Encapsulation of a free-solvent extract of lycopene in alginate-Ca(II) beads containing sugars and biopolymers Santagapita, Patricio Román Carotenoids Isomerization Molecular mobility Transport properties Background: The purpose of the present study was to enhance the stability toward isomerization and control the release of an encapsulated free-solvent extract of lycopene, obtained from a nonconventional natural source, by means of alginate beads containing sugar (trehalose) and biopolymers (chitosan, low methoxyl pectin, and arabic gum). Methods: Lycopene was extracted from freeze-dried pulp of pink grapefruit obtaining a free solvent extract. Lycopene encapsulation was conducted by a double procedure consisting of emulsification and ionotropic gelation in alginate-Ca(II) beads, modified by the addition of sugar and biopolymers. The influence of beads’ composition was studied on lycopene stability and release, as well as molecular mobility and diffusion in the beads. Results and Conclusions: The addition of a second excipient (besides alginate) in the formulation should be carefully conducted, since stability during alginate-Ca(II) bead generation could be even compromised, leading to high lycopene losses. Beads containing trehalose and chitosan were the ones that best preserved the lycopene content and minimized isomerization changes. This could be related to the reduced molecular mobility and lower diffusion coefficient of this system. Lycopene release was severely affected by the composition of the beads, allowing to modulate its release depending on a desired application. Then, a good strategy to obtain high lycopene formulations ready to use or for their incorporation in a subsequent technological process (such as freeze-drying or extrusion) was reported in the present study.[Figure not available: see fulltext.]. © 2017, The Author(s). Fil:Santagapita, P.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21965641_v4_n1_p_AguirreCalvo http://hdl.handle.net/20.500.12110/paper_21965641_v4_n1_p_AguirreCalvo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Carotenoids
Isomerization
Molecular mobility
Transport properties
spellingShingle Carotenoids
Isomerization
Molecular mobility
Transport properties
Santagapita, Patricio Román
Encapsulation of a free-solvent extract of lycopene in alginate-Ca(II) beads containing sugars and biopolymers
topic_facet Carotenoids
Isomerization
Molecular mobility
Transport properties
description Background: The purpose of the present study was to enhance the stability toward isomerization and control the release of an encapsulated free-solvent extract of lycopene, obtained from a nonconventional natural source, by means of alginate beads containing sugar (trehalose) and biopolymers (chitosan, low methoxyl pectin, and arabic gum). Methods: Lycopene was extracted from freeze-dried pulp of pink grapefruit obtaining a free solvent extract. Lycopene encapsulation was conducted by a double procedure consisting of emulsification and ionotropic gelation in alginate-Ca(II) beads, modified by the addition of sugar and biopolymers. The influence of beads’ composition was studied on lycopene stability and release, as well as molecular mobility and diffusion in the beads. Results and Conclusions: The addition of a second excipient (besides alginate) in the formulation should be carefully conducted, since stability during alginate-Ca(II) bead generation could be even compromised, leading to high lycopene losses. Beads containing trehalose and chitosan were the ones that best preserved the lycopene content and minimized isomerization changes. This could be related to the reduced molecular mobility and lower diffusion coefficient of this system. Lycopene release was severely affected by the composition of the beads, allowing to modulate its release depending on a desired application. Then, a good strategy to obtain high lycopene formulations ready to use or for their incorporation in a subsequent technological process (such as freeze-drying or extrusion) was reported in the present study.[Figure not available: see fulltext.]. © 2017, The Author(s).
author Santagapita, Patricio Román
author_facet Santagapita, Patricio Román
author_sort Santagapita, Patricio Román
title Encapsulation of a free-solvent extract of lycopene in alginate-Ca(II) beads containing sugars and biopolymers
title_short Encapsulation of a free-solvent extract of lycopene in alginate-Ca(II) beads containing sugars and biopolymers
title_full Encapsulation of a free-solvent extract of lycopene in alginate-Ca(II) beads containing sugars and biopolymers
title_fullStr Encapsulation of a free-solvent extract of lycopene in alginate-Ca(II) beads containing sugars and biopolymers
title_full_unstemmed Encapsulation of a free-solvent extract of lycopene in alginate-Ca(II) beads containing sugars and biopolymers
title_sort encapsulation of a free-solvent extract of lycopene in alginate-ca(ii) beads containing sugars and biopolymers
publishDate 2017
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_21965641_v4_n1_p_AguirreCalvo
http://hdl.handle.net/20.500.12110/paper_21965641_v4_n1_p_AguirreCalvo
work_keys_str_mv AT santagapitapatricioroman encapsulationofafreesolventextractoflycopeneinalginatecaiibeadscontainingsugarsandbiopolymers
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