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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

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Autor(es):
Toniazzo, Talse [1] ; Berbel, Isis F. [1] ; Cho, Stefany [1] ; Favaro-Trindade, Carmen S. [1] ; Moraes, Izabel C. F. [1] ; Pinho, Samantha C. [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Fac Anim Sci & Food Engn, Dept Food Engn, BR-13635900 Pirassununga, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: LWT-FOOD SCIENCE AND TECHNOLOGY; v. 59, n. 2, 2, SI, p. 1265-1273, DEC 2014.
Citações Web of Science: 45
Resumo

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)

Processo FAPESP: 11/01277-0 - Estabilização de dispersões lipossomais utilizando hidrocolóides: estudo de caso para encapsulação de beta-caroteno
Beneficiário:Stefany Cho
Linha de fomento: Bolsas no Brasil - Iniciação Científica
Processo FAPESP: 09/01087-7 - Incorporação de carotenóide em lipossomas por hidratação de partículas secas de fosfolipídios
Beneficiário:Samantha Cristina de Pinho
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 11/03901-3 - Dispersões de lipossomas encapsulando beta-caroteno e estabilizadas com hidrocolóides: caracterização e aplicações
Beneficiário:Taíse Toniazzo
Linha de fomento: Bolsas no Brasil - Mestrado