Alginate-based encapsulation of extracts from beta Vulgaris cv. beet greens: Stability and controlled release under simulated gastrointestinal conditions

Gorbunova, N, Bannikova, A, Evteev, A, Evdokimov, I and Kasapis, S 2018, 'Alginate-based encapsulation of extracts from beta Vulgaris cv. beet greens: Stability and controlled release under simulated gastrointestinal conditions', LWT, vol. 93, pp. 442-449.


Document type: Journal Article
Collection: Journal Articles

Title Alginate-based encapsulation of extracts from beta Vulgaris cv. beet greens: Stability and controlled release under simulated gastrointestinal conditions
Author(s) Gorbunova, N
Bannikova, A
Evteev, A
Evdokimov, I
Kasapis, S
Year 2018
Journal name LWT
Volume number 93
Start page 442
End page 449
Total pages 8
Publisher Academic Press
Abstract We obtained extracts from beet greens using conventional and ultrasound treatments. The work focused on betacyanins, betaxanthins and polyphenols from the extracts following the two distinct extraction protocols. These were used as the bioactive compounds in alginate capsules in order to follow patterns of controlled delivery in simulated gastrointestinal fluids. FTIR was performed to show the nature of interactions between excipient and bioactives. Swelling behaviour and mechanical characterization of the polysaccharide network showed that it remains firm in the harsh gastric conditions but exhibits soft consistency in the simulated environment of the small intestine. There is a direct relationship between mechanical characteristics, hence swelling of the beads, and release rates of bioactives within the in-vitro environment. Peppas-Sahlin equation was applied successfully to demonstrate that the relaxation contribution dominates with increasing time of observation, an outcome that confirms the role of swelling of the alginate capsules in bioactive compound release.
Subject Food Chemistry and Molecular Gastronomy (excl. Wine)
Keyword(s) Alginate capsules
Beet green extracts
Controlled release
Solvent extraction
Ultrasound treatment
DOI - identifier 10.1016/j.lwt.2018.03.075
Copyright notice © 2018 Published by Elsevier Ltd.
ISSN 0023-6438
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 0 times in Scopus Article
Altmetric details:
Access Statistics: 9 Abstract Views  -  Detailed Statistics
Created: Thu, 06 Dec 2018, 10:39:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us