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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Gelled Double-Layered Emulsions for Protection of Flaxseed Oil

Full text
Author(s):
Kawazoe Sato, Ana Carla [1] ; Polastro, Mariana Zagatto [1] ; Furtado, Guilherme de Figueiredo [1] ; Cunha, Rosiane Lopes [1]
Total Authors: 4
Affiliation:
[1] Univ Campinas UNICAMP, Sch Food Engn, Dept Food Engn, BR-13083862 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: FOOD BIOPHYSICS; v. 13, n. 3, p. 316-323, SEP 2018.
Web of Science Citations: 1
Abstract

Multilayer systems may present different functional properties according to the number of layers deposited, the type of biopolymers, the sequence of biopolymer layers, and the solution properties used during deposition. In this study, gelatin-stabilized emulsions were coated with alginate in order to produce double-layered emulsions. Concentrations of both primary emulsion and alginate in the outer layer were evaluated by a stability map. Results indicated the occurrence of depletion flocculation in emulsions with lower gelatin concentration due to excess of alginate. Stable emulsions were atomized in a calcium chloride solution for producing microgels, which resulted in semi-rounded monomodal particles. Emulsification process promoted a reduction in the content of the secondary oxidation products of flaxseed oil as compared to non-emulsified oil, while the gelation process was responsible for a considerable improvement on oxidative stability with significant reduction on both primary and secondary oxidation products during storage. These lipid-based microgels could be potentially used as delivery systems with improved oxidative stability. (AU)

FAPESP's process: 10/10206-7 - Microencapsulation of linseed oil by multilayer technique
Grantee:Mariana Zagatto Polastro
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 09/54137-1 - Acquisition of a particle size/distribution analyzer, a zeta potential measurement system, a spray dryer, and an ultra-high-pressure liquid chromatograph/mass spectrometer
Grantee:Miriam Dupas Hubinger
Support Opportunities: Multi-user Equipment Program
FAPESP's process: 11/06083-0 - Emulsification by microchannels
Grantee:Rosiane Lopes da Cunha
Support Opportunities: Regular Research Grants