Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/78598

TitleExploring the performance of amaranth grain starch and protein microcapsules as -carotene carrier systems for food applications
Author(s)Coelho, L. M.
Gonçalves, Idalina
Ferreira, Paula
Pinheiro, A. C.
Vicente, A. A.
Martins, Joana T.
KeywordsAmaranthus cruentus
spray-drying
microencapsulation
digestion
bioaccessibility
cell viability
Issue dateJul-2022
PublisherElsevier BV
JournalFood Structure
CitationCoelho, L. M.; Gonçalves, Idalina; Ferreira, Paula; Pinheiro, Ana Cristina; Vicente, António A.; Martins, Joana T., Exploring the performance of amaranth grain starch and protein microcapsules as -carotene carrier systems for food applications. Food Structure, 33(100287), 2022
Abstract(s)Underexploited sources of bio-based wall materials for bioactive compounds (such as -carotene) encapsulation have gained increasing interest within the scientific community. In this study, the potential of amaranth (Amaranthus cruentus) grain starch and protein rich fractions as microcapsules wall materials to carrier -carotene was evaluated. Microcapsules were produced by spray-drying and their morphological and physicochemical characterization was carried out. The microcapsules presented a spherical shape (particle size distribution: 0.3 - 30 m) and encapsulation efficiencies ranging from 64 to 69%. Results showed that protein-based microcapsules had better -carotene storage stability as compared to starch-based microcapsules (at 8 and 25 ºC). -carotene release kinetics at 37 ºC and pH 7.4 could be mainly described by structural-relaxation phenomenon using the linear superposition model. Moreover, encapsulated -carotene exhibited higher bioaccessibility than its free form after simulated in vitro digestion tests. Microcapsules did not affect cell viability at 0.0625mg·L-1 of -carotene. Thus, amaranth grain biopolymers-based microcapsules were successfully developed as promising -carotene delivery systems to be added to food products and consequently, to improve their functionality.
TypeArticle
URIhttps://hdl.handle.net/1822/78598
DOI10.1016/j.foostr.2022.100287
ISSN2213-3291
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S2213329122000363
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

Files in This Item:
File Description SizeFormat 
document_55605_1.pdf
  Restricted access
1,23 MBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID