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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.)

beta-carotene-loaded liposome dispersions stabilized with xanthan and guar gums: Physico-chemical stability and feasibility of application in yogurt

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Toniazzo, Talse [1] ; Berbel, Isis F. [1] ; Cho, Stefany [1] ; Favaro-Trindade, Carmen S. [1] ; Moraes, Izabel C. F. [1] ; Pinho, Samantha C. [1]
Total Authors: 6
[1] Univ Sao Paulo, Fac Anim Sci & Food Engn, Dept Food Engn, BR-13635900 Pirassununga, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: LWT-FOOD SCIENCE AND TECHNOLOGY; v. 59, n. 2, 2, SI, p. 1265-1273, DEC 2014.
Web of Science Citations: 42

The objective of this work was to produce beta-carotene-loaded liposomes using proliposomes and to test their incorporation in yogurts. Multilamellar liposome dispersions were stabilized by the addition of a mixture of xanthan and guar gums as thickeners, and vesicles exhibited an average diameter of approximately 2000 nm. The liposomes were capable of protect the beta-carotene from degradation for a period of 95 days; in fact, nearly 90% of the encapsulated carotenoids were preserved after this time. The dispersions were characterized by transmission electron microscopy, differential scanning calorimetry and rheology. The thermal analyses showed that neither the beta-carotene nor the gums affected the liposome bilayer structure. Moreover, the mixture of gums was highly effective in avoiding beta-carotene-loaded liposome aggregation over the storage time, and the data showed that a higher thickener concentration did not necessarily construct a more stable system. The physico-chemical characterization of the yogurts showed that their texture of both formulations A and B was not affected by the incorporation of the liposomes. The grades assigned were 7.40 +/- 1.22 and 6.87 +/- 1.43, respectively. This shows that they did not differ significantly, indicating the real possibility that at least part of the artificial colorants can be replaced by the encapsulated beta-carotene-loaded liposomes. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 09/01087-7 - Incorporation of carotenoid in liposomes by hydration of dry phospholipid particles
Grantee:Samantha Cristina de Pinho
Support Opportunities: Regular Research Grants
FAPESP's process: 11/01277-0 - Stabilization of liposomal dispersions using hydrocolloids: case study for the encapsulation of beta-carotene
Grantee:Stefany Cho
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 11/03901-3 - Liposome dispersions encapsulating beta-carotene and stabilized with hydrocolloids: characterization and applications
Grantee:Taíse Toniazzo
Support Opportunities: Scholarships in Brazil - Master